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Abbott, R. T., 1974. (2 ed.). American seashells. New York, Cincinnati, Toronto, London, Melbourne (van Nostrand Reinhold Co.): 1-663, 6405 figs.

Almogi-Labin, A. and Reiss, Z., 1977a. Quaternary pteropods from Israel, 1. Holocene and Pleistocene pteropods from the Mediterranean continental shelf and slope of Israel; 2. Pteropods from Recent sediments in the Gulf of Elat. Rev. Españ. Micropaleont. 9(1): 5-48, 9 figs, 10 pls.

Almogi-Labin, A., Hemleben, C. and Deuser, W. G., 1988. Seasonal variation in the flux of euthecosomatous pteropods collected in a deep sediment trap in the Sargasso Sea. Deep-Sea Res., 35(3): 441-464, 4 tabs, 22 figs.

Almogi-Labin, A., 1975. Pleistocene and holocene pteropods from the eastern Mediterranean and the Gulf of Elat. 4th Rap. H. Steinitz Mar. biol. Lab. Elat: 14-15 (mimiogr.).

Almogi-Labin, A., 1982. Stratigraphic and paleoceanographic significance of Late Quaternary pteropods from deep-sea cores in the Gulf of Aqaba (Elat) and northernmost Red Sea. Marine Micropal. 7(1): 53-72.

Bé, A. W. H. and Gilmer, A. W., 1977. A zoogeographic and taxonomic review of euthecosomatous Pteropoda. In: A. T. S., Ramsay (ed). Oceanic Micropalaeontology I. Acad. Press London: 733-808.

Bellini, R., 1905b. Les ptéropodes des terrains tertiaires en quaternaires d'Italie. Ann. Soc. r. zool. malac. Belgique 40: 23-45, figs 9-47.

Benoit, L., 1843. Ricerche malacologiche. Messina (Capra). Farfalletta. Opera periodica Scientifica Letteraria Artistica, Dispensa XI e XVI. Nuova Serie: 3-12, 2 pls.

Bianco, S. Lo, 1904. Pelagische Tiefseefischerei der 'Maya' in der Umgebung von Capri. In: Beitrege zur Kenntnis des Meeres und seiner Bewohner. Jena (G. Fischer Verlag): i-vi, 1-91, 179 figs, 1 map, 42 pls.

Boas, J. E. V., 1886a. Bidrag til Pteropodernes. Morfologi of Systematik samt til Kundskaben om deres geografiske Udbredelse- Spolia Atlantica- Vidensk. Selsk. Skr. (6 Raekke) naturv. math. IV (1): 1-231.

Boltovskoy, D., 1973. Los eutecosomados del Mar Argentino y adyacencias (Mollusca, Pteropoda). Physis (Asoc. Argent. Cienc. Natur.) (A)32(85): 395-411, 1 tab., 1 text-fig., 18 figs (on 2 pls).

Boltovskoy, D., 1975a. Ecological aspects of zooplankton (Foraminifera, Pteropoda and Chaetognatha) of the southwestern Atlantic Ocean. Veliger 18(2): 203-216, 3 tabs, 7 figs.

Bonnevie, K., 1913 (reprinted 1933). Pteropoda from the Michael Sars North-Atlantic Deep-Sea expedition. Rep. Sci. Res. 'Michael Sars' North Atl. Deep-Sea exp. 3(1): 1-69, 4 tabs, 58 figs, 9 pls.

Buccheri, G., 1984. Pteropods as climatic indicators in Quaternary sequences: a Lower-Middle Pleistocene sequence outcropping in Cava Puleo (Ficarazzi, Palermo, Sicilia). Palaeogeogr. Palaeoclim. Palaeoecol. 45: 75-86, 3 figs, 1 pl.

Cantraine, F., 1841. Malacologie méditerranéenne et litorale, ou description des mollusques quivivent dans la Méditerranée ou sur le continent de l'Italie, ainsi que des coquilles qui se trouvent dans les terrains tertiaires italiens, avec des observations sur leur anatomie, leurs moeurs, leur analogie et leur gisement. Ouvrage servant de faune malacologique italienne et de complément à la Conchiologia fossile subapennina de Brocchi. Mém. Acad. R. Brux. 13: 1-173, 6 pls.

Casanova, B., Ducret, F. and Rampal, J., 1973. Zooplancton de Méditerranée orientale et de Mer Rouge (chaetognathes, euphausiacés, ptéropodes). Rapp. Proc.-verb. Réunions Comm. intern. Expl. Sci. Mer Méditerr. 21(8): 515-519.

Casanova, J.-P., 1980. Campagnes du 'Meteor' dans 'Atlantique N-E. Siphonophores, méduses et thécosomes. Distribution verticale et comparaisons faunistiques avec la Méditerranée. 'Meteor' Forschungserg. (D)32: 15-32, 6 tabs, 6 figs.

Chen, C. and Bé, A. W. H., 1964b. Seasonal distributions of euthecosomatous pteropods in the surface waters of five stations in the western North Atlantic. Bull. Mar. Sci. Gulf Caribb. 14 (2): 185-220.

Chen, C. and Hillman, N. S., 1970. Shell-bearing pteropods as indicators of water masses off Cape Hatteras, North Carolina. Bull. Mar. Sci. Gulf Caribb. 20(2): 350-367, 4 tabs, 3 figs.

Chiaje, S. della, 1841a. Dei molluschi pteropodi e eteropodi apparsi nel cratere neopolitano. Rend. Acad. Borb. Sci. Napol. 2: 25-38, 105-115.

Chiaje, S. della, 1841a. Dei molluschi pteropodi e eteropodi apparsi nel cratere neopolitano. Rend. Acad. Borb. Sci. Napol. 2: 25-38, 105-115.

Orbigny, A. d', 1836-1846. Voyage dans l'Amérique méridionale (le Brésil, la république orientale de l'Uruguay, la république Argentine, la Patagonie, la république du Chili, la république de Bolivia, la république du Pérou), exécuté pendant les années 1826, 1827, 1828, 1829, 1830, 1831, 1832 et 1833, 5(3). Mollusques. Paris (Bertrand).

1-48 are from 1835.

49-184 are from 1836.

185-376 are from 1837.

377-408 are from 1840.

409-488 are from 1841.

489-758 are from 1846.

atlas 20 pls is from 1846.

Orbigny, A. d', 1841-1855. Mollusques, 1. In: R. de la Sagra. Histoire physique, politique et naturelle de l'Ile de Cuba. Paris (Bertrand): 376 pp. (1855), atlas 28 pls (1853).

Dadon, J. R. and Boltovskoy, D., 1982. Zooplanktonic recurrent groups (Pteropoda, Euphausiacea, Chaetognatha) in the southeastern Atlantic Ocean. Physis Secc., (A)41(100): 63-83.

Dadon, J. R., 1989. Pteropoda Euthecosomata del Mar Epicontinental Argentino y Adyacencias. Thesis Univ. Buenos Aires: 1-285. (mimiogr.)

Dall, W. H., 1889a. A preliminary catalogue of the shell-bearing marine mollusks and brachiopods of the south-eastern coast of the United States, with illustrations of many of the species. Bull. U.S. nat Mus. 37: 3-221, 74 pls.

Jong, K. M. de, and Coomans, H. E., 1988. Marine Gastropods from Curaçao, Aruba and Bonaire. Sud. fauna Curaçao other Caribb. Isl. 121: 1-216.

Deevey, G. B., 1971. The annual cycle in quantity and composition of the zoo-plankton of the Sargasso Sea off Bermuda, 1. The upper 500 m. Limn. Oceanogr. 16(2): 219-240.

Deshayes, G. P. and Milne Edwards, H., 1836. Histoire naturelle des animaux sans vertebres, présentant les caracteres généraux et particuliers de ces animaux, leur distribution, leurs classes, leurs familles, leurs genres, et la citation des principales especes qui s'y rapportent; précédée d'une introduction offrant la détermination des caracteres essentiels de l'animal, sa distinction du végétal et des autres corps naturels; enfin, l`exposition des principes fondamentaux de la zoologie, par J. B. P. A. de Lamarck. Deuxieme édition, revue et augmentée de notes présentant les faits nouveaux dont la science s'est enrichie jusqu'à ce jour, 7. Histoire des mollusques. Paris (J. B. Bailliere): 1-736.

Deshayes, G. P., 1853. Traité élémentaire de conchyliologie avec les applications de cette science a la géologie. Explication des planches. Paris (V. Masson): 1-80, i-xi, pls 1-132.

Dieci, G., 1962. Pteropodi langhiani di Rio delle Bàgole (Montegibbio, Appennino settentrionale modenese). Boll. Soc. Paleont. Ital. 1(2): 31-42, pls 15-16.

Diester-Haass, L. and Spoel, S. van der, 1978. Late Pleistocene pteropod-rich sediment layer in the N. E. Atlantic and protoconch variation of Clio pyramidata Linnaeus, 1767. Palaeogeogr., Palaeoclim., Palaeoecol. 24: 85-109.

Eschscholtz, F., 1829. Zoologischer Atlas, enthaltend Abbildungen und Beschreibungen neuer Thierarten, wehrend des Flottcapitains von Kotzebue zweiter Reise um die Welt, auf der Russisch-Kaiserlichen Kriegsschlupp Predpriaetiâ in den Jahren 1823-1826 beobachtet, 3. Berlin (G. Reimer): 1-18, pls 12-15.

Fol, H., 1875c. Études sur le développement des mollusuqes. Second mémoire Sur le développement des ptéropodes. Compt. Rend. Séanc. Acad. Sci. 80: 196-199.

Forbes, E., 1844a. Report on the Mollusca and Radiata of the Aegean Sea, and on their distribution, considered as bearing on geology. Report Thirteenth Meet. British Assoc. Advanc. Sci. held at Cork in August 1843: 131-193.

Franc, A., 1959. 10 Mollusques pélagiques. Campagne de la 'Calypso': Gulfe de Guinée. Ann. Inst. Océanogr. (NS) 37(4): 241-244, 1 fig.

Froget, C. and Pastouret, L., 1972. Les ptéropodes, moyen d'étude de la chronoclimatologie quaternaire. Comparaison de deux carottes prélevées en Méditerranée occidental et orientale. Rapp. Comm. int. Explor. Sci. Mer Médit., Monaco 20(4): 611-614.

Frontier, S., 1963a. Héteropods et ptéropodes récoltes dans le plankton de Nosy-Bé. Cah. ORSTOM 6(2): 213-227.

Frontier, S., 1963c. Zooplancton récolté en mer d'Arabie, Golfe Persique et Golfe d'Aden, 2. Ptéropodes, systématique et répartition. Cahiers ORSTOM, sér. océanogr. 6 (sér. Nosy-Bé, 2): 233-254.

Frontier, S., 1973b. Zooplancton de la région de Nosy-Bé, 6. Ptéropodes hétéropodes, premier partie: especes holonéritiques et néritiquesinternes. Cah. ORSTOM, Océanogr. 11(3): 273-289, 17 figs.

Frontier, S., 1973c. Zooplancton de la région de Nosy-Bé, 7. Ptéropodes, hétéropodes, 2. Especes néritiques. externes et océaniques tolérantes. Cah. ORSTOM, sér. océanogr. 11(3): 291-302.

Furnestin, M. L., 1968. Le zooplancton de la Méditerranée (bassin occidental), essay de synthese. J. Cons. int. Explor. Mer, J. Cons. 32(1): 25-69, 9 figs.

Furnestin, M. L., 1979. Aspects of the zoogeography of Mediterranean plankton. In: S. van der Spoel and A. C. Pierrot-Bults (eds). Zoogeography and diversity in plankton. Utrecht (Bunge Sci. Publ.): 191-253.

Gegenbaur, C., 1855b. Untersuchungen über Pteropoden und Heteropoden. Ein Beitrag zur Anatomie und Entwicklungsgeschichte dieser Thiere. Leipzig (Engelmann): i-vii, 1-228, 8 pls.

Geronimo, I. di, 1974a. Hyalocylis obtusa n. sp. (Pteropoda, Thecosomata) in sedimenti abissali recenti dello Jonio. Conchiglie 10(5-6): 113-116, 3 figs.

Gilmer, R. W. and Harbison, G. R., 1986. Morphology and field behavious of pteropod molluscs: feeding methods in the families Cavoliniidae, Limacinidae and Peraclididae (Gastropoda: Thecosomata). Mar. Biol. 91: 47-57, 1 tab., 7 figs.

Gilmer, R. W., 1974. Some aspects of feeding in thecosomatous pteropod mollusks. Journal exp. mar. Biol. Ecol. 15: 127-144.

Gilmer, R. W., 1986. Preservation artifacts and their effects on the study of euthecosomatous pteropod mollusks. Veliger 29(1): 48-52, 2 figs.

Glaçon, G., Rampal, J., Gaspard, D., Guillaumin, D. and Staerker, T. S., 1994. Thecosomata (pteropods) and their remains in Late Quaternary deposits on the Bougainville Guyot and the Central New Hibrides Island Arc. Proc. Ocean Dril. Progr. Sci. Res. 134: 319-334

González, C. and Princz, D., 1979. Moluscos heteropodos y pteropodos de la zone central del caribe venezolano. Bol. Inst. oceonogr. Cumana 18(1-2): 99-107.

Gray, J. E., 1850. Catalogue of the Mollusca in the collection of the British Museum, 2. Pteropoda. London (British Museum, E. Newman): iv + 45 pp.

Grazzini, V. C. and Rosenberg, H. Y., 1969. Étude paléoclimatique d'une carotte de Méditerranée orientale. Revue Geogr. phys. Géol. dynam. (2)11(3): 279-292, 3 figs, 1 pl.

Grecchi, G., 1984. Molluschi planctonici e bentonici in sedimenti sapropelitici del Quaternario della dorsalee Mediterranea. Boll. Malacologico 20(1-4): 1-34, 3 pls.

Haagensen, D. A., 1976 Caribbean zooplankton. Part II. Thecosomata. Off. Nav. Res. Dept. of the Navy. U. S. Govt. Print Off. Washington D. C.: 551-712.

Herman, Y., 1971b. Vertical and horizontal distribution of pteropods in quaternary sequences. In: B. M. Funnel and W. R. Riedel. The micropalaeontology of oceans: 468-486. Univ. Press, Cambridge.

Hida, T. S., 1957. Chaetognaths and pteropods as biological indicators in the North Pacific. U. S. Fish and Wildlife Service, Special Science. Report Fisheries 215: 1-13.

Hubendick, B., 1951. Pteropoda, with a new genus. Further zoological results of the Swedish Antarctic Expedition 1901-1903, 4(6): 1-10.

Ivanova, E. V., 1985. Late Quaternary biostratigraphy and paleotemperatures of the Red Sea and the Gulf of Aden based on planktonic Foraminifera and pteropods. Mar. Micropal. 9: 335-364.

Jeffreys, J. G., 1870a. Mediterranean Mollusca. Ann. Mag. nat. Hist. 6(4): 457-458.

Lewis, J. B. and Fish, A. G., 1969. Seasonal variation of the zooplankton fauna of surface waters entering the Caribbean Sea at Barbados. Caribb. J. Sci. 9(1-2): 1-24.

Magaldi, N. H., 1977a. Moluscos holoplanctonicos del Atlantico suboccidental. III. Heteropods y pteropods de aguas superficiales Brasilenas y Uruguayas. Com. Soc. Malac. Urug. 4 (33): 295-325.

McGowan, J. A. and Fraundorf, V. J., 1966. The relationship between size and net used and estimates of zooplankton diversity. Limn. Oceanogr. 11(4): 456-469.

McGowan, J. A., 1967. Distributional atlas of pelagic molluscs in the California Current region. CALCOFI Atlas 6: 1-218.

McGowan, J. A., 1968. The Thecosomata and Gymnosomata of California. Veliger 3 (suppl.): 103-130, pls 12-20.

Meisenheimer, J., 1905c. Pteropoda. Deutsch. Tiefsee Exp. 1898-1899 IX: 1-314, Atlas Pl. 1-27 Map 1-9.

Menzies, R. J., 1958. Shell-bearing pteropod gastropods from mediterranean plankton (Cavoliniidae). Pubbl. Staz. Zoologica Napoli 30 (3): 381-401, 5 tabs, 9 figs, 8 maps.

Michel, H. B., Bebbehani, M., Herring, D., Arar, M., Shoushani, M. and Brakoniecki, T., 1986. Zooplankton diversity, distribution and abundance in Kuwait waters. Kuwait Bull. Mar. Sci 8: 37-105.

Monterosato, T. A. di, 1878a. Enumerazione e sinonimia delle conchiglie mediterranee. Giorn. Sci. nat. econ., Soc. Sci. nat. econ. Palermo 13: 61-115.i

Newman, L. J., 1990. Holoplanktonic molluscs (Gastropoda; Thecosomata, Gymnosomata, and Heteropoda) from the waters of Australia and Papua New Guinea: their taxonomy, distribution and biology. PhD Thesis Univ. Qld. Australia. 208 pp.

Ode, H., 1991. Distribution and records of the marine mollusca in the North-West Gulf of Mexico. Texas Conch. 27(3/4): 72-83.

Okutani, T., 1957a. Holoplanktonic Gastropoda in the 'Kuroshio' area, south of Hinshu, May 1955. Rec. oceanogr. Wks. Japan, (NS) Spec. No.: 134-142, 3 figs.

Pafort-van Iersel, G. J. S., 1985a. Contributions to pelagic zoogeography of the mid North Atlantic Ocean, 1. Distribution of pteropods, heteropods and silver hatchetfishes. In: G. J. S. Pafort-van Iersel. A contribution to pelagic zoogeography of the mid North Atlantic Ocean (7th paper) (Thesis Univ. van Amsterdam): 1-45, 5 tabs, 4 figs, 27 append.

Peck, J. I., 1894. Scientific results of explorations by the U. S. Fish commission steamer Albatross, 26. Report on the pteropods and heteropods collected by the U. S. Fish commission steamer Albatross during the voyage from Norfolk, Va., to San Francisco, Cal., 1887-1888, 1. The thecosomatous pteropods. Proc. U. S. Nat. Museum, (1893) 16: 451-466, pls 53-55.

Pelseneer, P., 1888a. Report on the Pteropoda collected by H. M. S. Challenger during the years 1873-1876, 2. The Thecosomata Reports on the scientific. Results of the voyage of H. M. S. Challenger during the years 1873-1876 (zool.) 23(1): 1-132, 2 figs, 2 pls.

Pelseneer, P., 1888b. Report on the Pteropoda collected by H. M. S. Challenger during the years 1873-1876, 3. Anatomy Reports on the scientific. Results of the voyage of H. M. S. Challenger during the years 1873-1876(zool.) 23(2): 1-97, 1 tab., 5 figs, 5 pls.

Pfeffer, G., 1880b. Die Pteropoden des Hamburger Museums. Abhandlu. Naturwissensch. Ver. Hamburg 7: 69-99, pl. 7.

Pruvot-Fol, A., 1954. Mollusques opisthobranches. Faune de France 58. Paris (Lechevalier): 1-460, 173 figs, 1 pl.

Rampal, J., 1966. Pèches planctoniques superficielles et profondes en Méditerranée occidentale (campagne de la 'Thalassa', janvier 1961, entre les îles Baléares, la Sardaigne et l'Algérois, 6). Ptéropodes. Rev. Trav. Inst. Pàches Marit. (Paris) 30: 375-383, 6 figs.

Rampal, J., 1967. Répartition quantitative et bathymétrique des ptéropodes thécosomés récoltés en Méditerranéee occidentale au Nord du 40° parallèle. Remarques morphologiques sur certaines espèces. Rev. Trav. Inst. Pèches Marit. (Paris) 31(4): 1-13.

Rampal, J., 1968a. Les ptéropodes thécosomes en Méditerranée. Comm. Int. Explor. sci. Mer Méditerr.: 1-142, 6 tabs, 12 figs. (PhD thesis).

Rampal, J., 1971b. Les ptéropodes thécosomes en Méditerrané. Rapp. Comm. int. Mer. Médit. 20(3): 419.

Rampal, J., 1973a. Clés de détermination des ptéropodes thécosomes de Méditerranée et de l'Atlantique euroafricain. Rev. Trav. Inst. Pàches Marit. (Paris) 37(3): 369-381.

Rampal, J., 1975. Les thécosomes (mollusques pélagiques). Systématique et évolution écologie et biogéographie méditerranéennes. Aix-Marseille (Thesis Univ. Provence CNRS AO 11932): 1-485, 15 tabs, 99 figs.

Rampal, J., 1977b. Diversité de structure de la coquille chez les thécosomes. Atti Soc. Ital. Sci. Nat. Museo Civ. St. Nat. Milano 118(2): 207-211, 1 fig.

Rampal, J., 1980a. Biogeographie Méditerranéne d'apres l'etude des Thécosome (Mollusques pelagiques). J. Etud. Syst. Biogeogr. Médit Cagliari CIESM: 45-54.

Rampal, J., 1985a. Distribution des Mollusques Thécosome en mer Rouge Meridionale. Rapp. Comm. int. Mer Médit., 29 (9): 265-267.

Rampal, J., 1990. Les Thecosomes de la mer Rouge. Bull. Inst. Oceanogr. Monaco (spec.) 7: 103-107.

Rang, P. C. A. L., 1828b. Notice sur quelques mollusques nouveaux appartenant au genre Cléodore, et établissement et monographie du sous-genre Créseis. Ann. Sci. Nat. 13: 302-319, pls 17-18.

Richter, G., 1973b. Zur Stammesgeschichte pelagischer Gastropoden. Natur und Museum 103(8): 265-275, 4 tabs, 9 figs.

Richter, G., 1976a. Creseis chierchiae Boas, eigene Art oder Jugendstadium von Hyalocylis striata (Rang)? Arch. Moll. 107 (1/3): 145-148.

Richter, G., 1976b. Zur Frage der Verwandtschaftsbeziehung von Limacinidae und Cavolinidae. Arch. Moll. 107 (1/3): 137-144.

Richter, G., 1979. Die thecosomen Pteropoden der "Meteor"-Expedition in den Indischen Ozean 1964/65. "Meteor" Forsch. Ergebnisse (D) 29: 1-29.

Riedl, R., 1970. Fauna und Flora der Adria. 2° Ed. Hamburg, Berlin (Verlag P. Parey): 1-702.

Ros, J., 1976. Catálogo provisional de los Opistobranquios (Gastropoda, Euthyneura) de las costas ibéricas. Miscel. Zool. 3(5): 21-48.

Rottman, M., 1976. Euthecosomatous pteropods (Mollusca) in the Gulf of Thailand and the South China Sea: seasonal distribution and species associations. Naga Rep. 4 (6): 1-117.

Rottmann, M. L., 1978. Ecology and recurrent groups of pteropods, euphasiids and chaetognaths in the Gulf of Thailand and the South China Sea. Mar. Biol. 48(1): 63-78, 7 tabs, 4 figs.

Sakthivel, M., 1967. A preliminary report on the distribution and relative abundance of Euthecosomata with a note on the seasonal variation of Limacina species in the Indian Ocean. In: Proc. Symp. 'Indian Ocean' March 1967. Bull. N. I. S. I. 38: 700-717, 17 figs.

Sakthivel, M., 1975. A note an the annual variation of the euthecosomatous pteropods along the meridian 78° East in the Indian Ocean. Bull. Plank. Soc. Japan 21: 41-44.

Sakthivel, M., 1976a. Geographical and seasonal distribution of Euthecosomata (Pteropoda, Gastropoda) in the Indian Ocean. Meteor Forsch. Ergebniss D23: 1-22.

Sakthivel, M., 1977. Further studies of plankton ecosystems in the eastern Indian Ocean, 8. Seasonal, diurnul and latitudinal variations in abundance of Euthecosomata along the 110° meridian. Aust. J. Mar. Freshw. Research 28(5): 663-671.

Sanchez Nava, S. A., 1984. Sistemática, distribución y abundancia de los moluscos pelágicos (Gastropoda: heteropoda y Pteropoda) en el Diomo de Costa Rica. (Ph. D Thesis Univ. Nacional Autonomia de Mexico): 1-180 (mimiogr).

Sarnthein, M., 1967. The plankton-benthos ratio of mollusks in the recent sediments of the Persian Gulf. Proc. 1st ConfER. Plankt. Microfos.: 594-598.

Schalk, P. H., 1990. Spatial and seasonal variation in pteropods (Mollusca) of Indo-malayan waters related to watermass distribution. Mar. Biol. 105: 59-71.

Schiemenz, P., 1906. Die Pteropoden der Plankton Expedition. Erg. Plankt. Exp. Humboldt Stift. 2 F.b.: 1-37.

Seguenza, G., 1875a. Studi paleontologici sulla fauna malacologica dei sedimenti pliocenici depositatisi a grandi profonditá, 1-2. Bull. Soc. Malacol. Ital. 1 (2): 18-49

Solis, N. B. and Westernhagen, H. von , 1978. Vertical distribution of euthecosomatous pteropods in the upper 100 m. of the Hilutangan Channel Cebu, The Philippines. Mar. Biol. 48(1): 79-87.

Souleyet, [F. L. A.], 1851. (introd. S. Petit) Ordre des ptéropodes. J. Conchyl. 2: 28-38.

Starobogatov, J. I., 1971. Ordo Thecosomata; ordo Gymnosomata; ordo Heteropoda. In: Polevoy Zool. Inst. Akad. Moscou. opredeliteli planktona (without page or figure numbers, not bound, mimiographed). [in Russsian]

Steuer, A., 1911. Adriatische Pteropoden. Sitz. Ber. Math.-Naturw. Klasse k. k. Akad. Wien 120(1): 709-730, 9 figs.

Stubbings, H. G., 1938. Pteropoda. Sci. Rep. John Murray Expedition 1933-1934, 5(2): 3-33, 2 figs.

Taki, I. and Okutani, T., 1962. Reports on the biology of the 'Umitaka-Maru' expedition, 2. Planktonic Gastropoda collected by the trainning vessel 'Umitaka-Maru' from the Pacific and Indian Oceans in the course of het Antarctic expedition, 1956. J. Fac. Fish. Anim. Husb. Hiroshima Univ. 4: 81-97.

Tanaka, T., 1971. Pteropoda and Heteropoda (Gastropoda, Mollusca) collected in the western Pacific Ocean in the northern summer 1968. Kaiyo Rep. 3: 27-38.

Tesch, J. J., 1904. The Thecosomata and Gymnosomata of the Siboga Expedition. Siboga Rep. 52: 1-92, 156 figs.

Tesch, J. J., 1908. The Pteropoda of the Leyden museum. Notes Leiden Mus. 29: 181-203, pl. 7.

Tesch, J. J., 1913c. Mollusca, Pteropoda. In: F. E. Schulze. Das Tierreich. Eine Zusammenstellung und Kennzeichnung der rezenten Tierformen 36. Berlin (Friedberger and Sohn): i-xvi, 1-154, 108 figs.

Tesch, J. J., 1946. The thecosomatous pteropods, 1. The Atlantic. Dana Report 28: 1-82, 37 figs, 8 pls.

Tesch, J. J., 1948. The thecosomatous pteropods, 2. The Indo-Pacific. Dana Report 30: 1-45, 34 figs, 3 pls.

Thiriot-Quievreux, C., 1990b. Karyotype analysis in several pelagic gastropods. Amer. Malac. Bull. 8(1): 37-44.

Tokioka, T., 1955c. On some plankton animals collected by the Syunkotu-Maru in May-June 1954, 4. Thecosomatous pteropods. Publ. Seto mar. biol. Lab. 5(1): 59-74, pls 7-13.

Tokioka, T., 1961. The structure of the operculum of the species of Atlantidae (Gastropoda: Heteropoda) as a taxonomic criterion, with records of some pelagic mollusks in the North Pacific. Publ. Seto mar. biol. Lab. 9(2): 267-332 (art. 15, pp. 1-86).

Troost, D. G., Sutomo, A. B. and Wenno, L. F., 1976 Distribution and abundance of major zooplankton groups in Ambon Bay (Maluku, Indonesia) during a salp swarming with notes on Chaetognatha and Pteropoda species. Mar. Res. Indonesia 16: 31-44.

Troschel, F. H., 1854. Beiträge zur Kenntniss der Pteropoden. Arch. Naturgeschichte 20(1): 196-241, pls 8-10.

Spoel, S. van der and Boltovskoy, D., 1981. Pteropoda. In: Boltovskoy, D. (ed.). Atlas del zooplancton del Atlantico Sudoccidental. Publ. INIDEP Argentina: 493-512.

Spoel, S. van der and Newman, L., 1990. Juveniles of the pteropod Hyalocylis striata (Mollusca, Gastropoda, Pteropoda). Basteria 54: 203-210, figs 1-6.

Spoel, S. van der, Boltovskoy, D. and Jankivich, S. S., 1981. Classification y distribucion. In: Boltovskoy, D. (ed.). Atlas del zooplancton del Atlantico Sudoccidental. Publ. INIDEP Argentina: 512-524.

Spoel, S. van der, 1967. Euthecosomata, a group with remarkable developmental stages (Gastropoda, Pteropoda). J. Noorduyn and Zn, Gorinchem, 375 pp.

Summary (in Dutch also published separately)

Spoel, S. van der, 1968b. The shell and its shape in Cavoliniidae (Pteropoda Gastropoda). Beaufortia 15 (206): 185-189.

Spoel, S. van der, 1970a. Morphometric data in Cavoliniidae with notes on a new forma of Cuvierina columnella (Rang, 1927) (Gastropoda, Pteropoda). Basteria 34 (5-6): 103-151.

Spoel, S. van der, 1970b. The pelagic Mollusca from the 'Atlantide' and 'Galathea' expeditions collected in the East Atlantic. Atlantide Reports 11: 99-139, 24 figs.

Spoel, S. van der, 1971d. The pelagic Mollusca from the "Atlantide" and "Galathea" Expeditions collected in the East Atlantic. Atlantide Rep. 11: 99-139.

Spoel, S. van der, 1972b. Pteropoda, Thecosomata. Cons. int. Expl. Mer. Zooplankton Sheet 140-142: 1-12.

Spoel, S. van der, 1976a. Finer sculpture in euthecosomatous shells, and their value for taxonomy (Mollusca, Pteropoda). Beaufortia 24 (314): 105-132, pls I-X.

Spoel, S. van der, 1976c. Pseudothecosomata, Gymnosomata and Heteropoda. Bohn, Scheltema & Holkema, Utrecht. 484 pp. 246 figs.

Spoel, S. van der, 1981a. Descripcion de los conchas embrionarias de Cavoliniidae. In: Boltovskoy, D. (ed.). Atlas del zooplancton del Atlantico Sudoccidental. Publ. INIDEP Argentina: 525-531.

Spoel, S. van der, 1987a. Annotated list of Mollusca, Tintinnidae Amphisolenia and Radiolaria collected in pumpsamples by the Amsterdam Mid North Atlantic Plankton Expeditions 1980-1983. Versl. Tech. Geg. Univ. Amsterdam 48: 1-99.

Spoel, S. van der, 1992b. Pteropods from Akajima, Rep. Akajima Mar. Sci. Lab. 3: 12-13 [in Japanese]

Straaten, L. M. J. U. van, 1966. Micro-malacological investigation of cores from the southeastern Adriatic Sea. Proc. Konink. Ned. Akad. Wetensch. Amsterdam (8)69(3): 429-445, 6 figs, 1 pl.

Straaten, L. M. J. U. van, 1985. Molluscs and sedimentation in the Adriatic Sea during late-Pleistocene and Holocene times. Giornale Geol. (3) 47 (1/2): 181-202.

Vatova, A., 1974. Sui molluschi di alcuni saggi di fondo prelevati alle soglie del Mar Jonio. Conchiglie 10(5-6): 93-112, 3 pls.

Vayssiére, A., 1913. Mollusques de la France et des régions voysines, 1. Amphineures, gastéropodes opisthobranches, hétéropodes, marséniad1és et oncidiidés. In: Encyclopédie scientifique. Paris (Doin): 1-418, i-xii, 42 pls.

Vayssiére, A., 1915a. Mollusques euptéropodes (ptéropodes thécosomes) provenant des campagnes des yachts Hirondelle et Princesse-Alice (1885-1913). Résul. Camp. Scient. accompl. yacht par Albert Ier, prince souverain de Monaco 47: 1-226, 14 pls.

Vecchione, M., and Grant, G. C., 1983. A multivariate analysis of planktonic molluscan distribution in the middle Atlantic bight. Cont. Shelf Res. 1(4): 405-424.

Weikert, H., 1972. Verteilung und Tagesperiodik des Evertebratenneuston im subtropischen Nordostatlantik während der Atlantischen Kuppenfahrten- 1967 von F. S. 'Meteor'. Meteor Forschungsergeb. (D)11: 29-87.

Wells, F. E., 1975a. Comparison of euthecosomatous pteropods in the plankton and sediments off Barbados, West Indies. Proc. malac. Soc. London 41: 503-509, 4 figs.

Wells, F. E., 1976a. A preliminary examination of euthecosomatous pteropods off the central coast of western Australia. Rec. West Aust. Mus. 4(4): 327-334.

Wells, F. E., 1976c. Seasonal patterns of abundance and reproduction of euthecosomatous pteropods off Barbados, West Indies. Veliger 18(3): 241-248, 2 tabs, 7 figs.

Wells, F. E., 1978a. Distribution of thecosomatous pteropods off the central coast of western Australia. Aust. J. Mar. Freshw. Res. 29(6): 853-858, 4 figs.

Yamaji, I., 1991. Illustrations of the marine plankton of Japan. 3°Ed. Hoikusha Publ. Co. Ltd, Osaka.: 1-538.

Zhang, F., 1964. The pelagic molluscs off the China coast, 1. A systematic study of Pteropoda (Opisthobranchia), Heteropoda (Prosobranchia) and Janthinidae (Ptenoglossa, Prosobranchia). Stud. Mar. Sinica 5: 125-226.

Zhang, F., 1966. The pelagic mollusca of the China coast, II: on the ecology of the pelagic moluscs of the Yellow Sea and the East China Sea Oceanol. Limnol. Sinica 2(1): 13-28.

Zheng Zhong (et al.), 1989. Marine Planktology. China Ocean Press. Bejing: i-viii, 1-454. [transl. from Chinese orig.]

Hyalocylis striata