Heteroscymnoides marleyi Fowler, 1934
Longnose pygmy shark
Heteroscymnoides marleyi
photo by FAO

 Family:  Dalatiidae (Sleeper sharks)
 Max. size:  29 cm TL (male/unsexed)
 Environment:  benthopelagic; depth range 0 - 502 m
 Distribution:  Southeast Atlantic: near Ascension Island. Western Indian Ocean: Durban, Natal, South Africa.
 Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 0-0; Anal spines: 0-0; Anal soft rays: 0-0. A cylindrical, dwarf dogfish shark with a long bulbous snout, small round eyes, and small gill slits; caudal fin paddle-shaped (Ref. 5578). Dark brown with conspicuous light-edged fins (Ref. 5578). Ventral surface covered with minute photophores (Ref. 6577).
 Biology:  Probably oceanic (Ref. 5578). The holotype was caught off a beach, but a second specimen was taken in the Atlantic at night between the surface and 502 m (Ref. 247). Food unknown but may subsist on pelagic fish and invertebrates (Ref. 247). Probably ovoviviparous with very few young (Ref. 247).
 IUCN Red List Status:   (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Carpenter, Kent E. - 15.06.92
 Modified by: Bailly, Nicolas - 06.07.07
 Checked by: Garilao, Cristina V. - 20.11.95

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