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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.

Adams, H. and Adams, A., 1853-1858. The genera of recent Mollusca, arranged according to their organization, 1-2. London (van Voorst): 1-256, pls 1-32, 1853; 257-484, pls 33-60, 1854 (1); 1-92, pls 61-72, 1854; 93-284, pls 73-96, 1855; 285-412, pls 97-112, 1856; 413-540, pls 113-128, 1857; 541-661, pls 129-138, 1858 (2).

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., Luz, B. and Duplessy, J.-C., 1986. Quaternary paleooceanography, pteropod preservation and stableisotope record of the Red Sea. Palaeogeogr. Palaeoclim. Palaeoecol. 57: 195-211, 5 figs, 1 pl.

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.

Almogi-Labin, A., 1984. Population dynamics of planktonic Foraminifera and Pteropoda, Gulf of Aqaba, Red Sea. Proc. Koninkl. Nederl. Akad. Wetensch. (B9)87(4): 481-511.

Bandel, K. von, Almogi-Labin, A., Hemleben, C. and Deuser, W. C., 1984. The conch of Limacina and Peraclis (Pteropoda) and a model for the evolution of planktonic gastropods. N. Jb. Geol. Paleont., Abhandl. 168(1): 87-107, 2 tabs, 25 figs.

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.

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., 1974. Study of surface-shell features in Thecosomata (Pteropoda: Mollusca) by means of scanning electron microscopy. Mar. Biol. 27(2): 165-172, 5 figs.

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.

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.

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.

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.

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. and Esnal, G. B., 1995. Abundance and assemblages of planktonic Tunicata (Chordata) and Thecosomata (Mollusca) off South Brazil. Physis, Secc. A. 50. (118-119): 25-30.

Dadon, J. R. and Magaldi, N. H., 1995. Mesoscale distribution of Thecosomata(Gastropoda) in the Brazil- Malvinas confluence compared with simultaneous satellite images of surface temperature. Iheringia, Sér. zool. 78: 157-160.

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

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.

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.

Eydoux, [F.] and Souleyet, [F. L. A.], 1840. Description sommaire de plusieurs ptéropodes nouveaux ou imparfaitement connus, destinés à àtre publiés dans Le voyage de la Bonite. Revue Zool. Soc. Cuvier. Paris: 235-239.

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., 1978. Planktonic molluscs as hydrological and ecological indicators. In: S. van der Spoel, et al. (eds). Pathways in malacology. Utrecht (Bohn, Scheltema & Holkema): 175-194.

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.

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.

Govoni, J. J., Chester, A. J., Hoss, D. E. and Ortner, P. B., 1985. J. Plankt. Res. 7(1): 137-146.

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. and Bertolotti, M., 1988 Interpretazione paleoclimatica della carota CG18-BAN82 basata sull'analisi di Thecosomata Euthecosomata del Quaternario del Mediterraneo orientale. Bull. Mus. Reg. Sci. Nat. Torino 6(1): 73-132.

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.

Ivanova, E. V., 1983 Pteropoda as indicators of palaeo-environment. Okeanologia 23 (5): 839-845. [in Russian]

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.

Lalli, C. M. and Wells, F. E., 1978. Reproduction in the genus Limacina (Opisthobranchia: Thecosomata). J. Zool. London. 186: 95-108.

MacPherson, J. H. and Gabriel, C. L., 1962. Marine mollusca of Victoria. Thecosomata: 248-250.

Magaldi, N. H., 1971b. Sobre la presencia en el Atlantico sudoccidental de Cymbulia peroni de Blainville, 1818. Neotropica 17(53): 92-94, 1 fig.

Magaldi, N. H., 1974. Moluscos holoplanktonicos del Atlantico sudoccidental. I Pteropodos euthecosomados colectados por el "Atlantis II" en marzo de 1971. Comunicac. Soc. Malacol. Uruguay 4(27): 1-20.

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., 1960. The systematics, distribution, and abundance of the Euthecosomata of the North Pacific. San Diego (Ph. D. thesis University of California): 1-212, 17 tabs, 54 figs.

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.

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

Moore, H.B., Owre, H., Jones, E. C. and Dow, T., 1953. Plankton of the Florida current, 3. The control of the vertical distribution of zooplankton in the daytime by light and temperature. Bull. Mar. Sci. Gulf Caribb. 3(2): 83-95, 4 tabs, 1 fig.

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.

Nordsieck, F., 1976. Abyssal molluscs from the Ionic Sea. Conchiglia 5(11-12): 4-7.

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.

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

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., 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.

Rao, T. S. S., 1979. Zoogeography of the Indian Ocean. In: Spoel, S. van der and Pierrot-Bults, A. C. (eds). Zoogeography and diversity in plankton. Utrecht (Bunge Sci. Publ.): 254-292.

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

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.

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.

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

Sentz-Braconnot, E., 1968. Répartition des ptéropodes Spiratella inflata (d'Orbigny) et S. trochiformis (d'Orbigny) dans la rade de Villefranche-sur-Mer. Rapp. Comm. int. Explor. Mer Médit. 19(3): 463-467.

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.

Souleyet, [F. L. A.], 1852b. In: Rang, P. C. A. L. and Souleyet, [F. L. A.]: Histoire Naturelles de mollusques Ptéropodes. Monographie comprenant la description de toutes les espèces. J. B. Baillière, Paris: 1-86.

Souleyet, [F. L. A.], 1852b. In: Rang, P. C. A. L. and Souleyet, [F. L. A.]: Histoire Naturelles de mollusques Ptéropodes. Monographie comprenant la description de toutes les espèces. J. B. Baillière, Paris: 1-86.

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]

Stepien, J. C., 1980. The occurrence of chaetognaths, pteropods and euphausiids in relation to deep flow reversals in the Strait of Florida. Deep Sea Res. 27A: 987-1011.

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.

Sykes, E. R., 1905. On the Mollusca procured during the 'Porcupine' Expeditions, 1869-1870. Supplemental notes, 2. Proc. malac. Soc. London 6(6): 322-332, 4 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., 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.

Thiede, J., Pastouret, L. and Melguen, M., 1974. Sédimentation profonde au large du delta du Niger (Golfe de Guinée). C. R. Acad. Sci. Paris 278(D): 987-990, 2 pls.

Thiede, J., 1975b. Shell- and skeleton- producing plankton and nekton in the Eastern North Atlantic Ocean. 'Meteor' Forschungsergeb. (C)20: 33-79.

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.

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 Pierrot-Bults, A. C., 1979. Zoogeography of the Pacific Ocean. In: S. van der Spoel and A. C. Pierrot-Bults (eds). Zoogeography and diversity in plankton. Utrecht (Bunge Sci. Publ.): 293-327.

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

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

Violanti, D., Grecchi, G. and Castradori, D., 1991. Paleoenvironmental intertretation of core BAN88-11GC (Eastern Mediterranean, Pleistocene-Holocen) on the grounds of Foraminifera, Thecosomata and calcareous nannofossils. Il Quaternario 4(1a): 13-39.

Vives, F., 1966. Zooplankton neritico de las aguas de Castellan (Mediterràneo occidental). Invest. Pesq. 30: 49-166, 32 figs, 7 photogrs.

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., 1976b. Growth rate of four species of euthecosomatous pteropods occurring off Barbados, West Indies. Nautilus 90(3): 114-116, 2 tabs.

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Limacina trochiformis