Author: Lloyd, 1909

Platytroctegen mirus Lloyd, 1909

Diagnosis: body deep and highly compressed, upper and lower profiles formed of fleshy keels to give leaf-like appearance, but profiles not sawedged; solid tissue along belly at least as deep as caudal peduncle. Snout shorter than eye, no premaxillary tusks. Gillrakers 37 (11 on upper limb). Pyloric caeca 2, small. No pit behind upper part of shoulder girdle. Dorsal fin far back on body, with 23-25 finrays; pectoral fins small, with 26-30 finrays; pelvic fins a little behind midpoint of body, with 6 finrays; anal fin about opposite and equal to dorsal fin, with 22-24 finrays. No light organs. Scales normal, without median ridges; lateral line without enlarged modified scales, about 105 scales in lateral series above it, about 20 above lateral line and 17 below it at level of dorsal and anal fin origins. Colour: uniform dark. Size: to 12 cm.

Habitat: bathypelagic, in oxygen-poor waters (at least in Arabian Gulf and Indian Ocean). Food: no data. Reproduction: no data.

Distribution: single specimen from stomach of cod caught in Denmark Strait (but this record questionable). Elsewhere, Arabian Gulf and Bay of Bengal.

Eggs, larvae and young stages. No data.
Otoliths (sagitta). Kotthaus, 1967: fig. 11.

Kingdom Animalia
Phylum Chordata
Subphylum Vertebrata
Superclass Gnathostomata
Class Osteichthyes
Order Clupeiformes
Family Leptochilichthyidae
Genus Platytroctegen
Species Platytroctegen mirus

Status in World Register of Marine Species

Synonym of Platytroctes mirus (Lloyd, 1909)

Scientific synonyms and common names

Platytroctegen mirus Lloyd, 1909

Synonyms:

Platytroctegen mirus Lloyd, 1909, Mem. Indian. Mus., 2: 145-146 (Bay of Bengal, 915 m). Holotype: unknown.
Platytroctegen mirus: Parr, 1951: 15; 1960: 38-39, fig. 27-28 Kotthaus, 1967: 12-13, fig. 10-12.
Platytroctegen spec. Krefft, 1964: 79.


Common names:

leaf searsid [En]

Krefft, G. 1964a. Rare fish. Germany. Annls biol., Copenh., 1962 [1964]19: 79 pp.

Lloyd, R. E. 1909. A description of the deep-sea Fish caught by the R.I.M.S. Ship 'Investigator' since the year 1900 vith supposed evidence of mutation in Malthopsis. Mem. Indian Mus., 2 (3): 139-180, 8 fig., 7 pl.

Parr, A. E. 1951. Preliminary revision of the Alepocephalidae, with the introduction of a new family, Searsidae. Am. Mus. Novit., (1531): pp. 1-21.

Parr, A. E. 1960. The fishes of the family Searsidae. Dana Rep., (51): pp. 1-109, fig. 1-73.

Kotthaus, A. 1967. Fische des Indischen Ozeans. Ergebnisse der ichthyologischen Untersuchungen während der Expedition des Forschungsschiffes 'Meteor' in den Indischen Ozean, Oktober 1964 bis Mai 1965. 'Meteor' Forsch. Ergebn., (D) 1: 1-84, fig. 1-96.

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