334 

 i. Avocettina infans (Gthr). 



Nemichthys infans Giinther, Ann. Mag. Nat. Hist. II. 1878, p. 252. Challenger- 

 Report Deepsea Fishes 1887, p. 264. 



}Labichthys elongatus Gill & Ryder, Proc. U. S. Nat. Mus. VI. (1883) 1884, p. 262. 



^.Labichthys Gilli Bean, Proc. U.S. Nat. Mus. XIII. 1890, p. 45. 



Avocettina infans Jordan & Davis, Report for 1888 U. S. fish Comm. 1892^.655. 



Labichthys infans Goode & Bean, Oceanic Ichth. 1895, p. 153. 



? A-vocettina elongata Jordan & Evermann, Fishes North & Middle America III. 

 1898, p. 2802. 



Avocettina infans Brauer, Deutsche Tiefsee-Exped. Tiefseefische 1906, p. 129. 



Avocettina infans M. Weber, Siboga-Exp. Fische 1913, p. 53. 



D- 325353; A. 240307; P. 1415. 



Height 40 48; head more or less than 9.5; snout 1.3 1.4 

 in length of head. Eye about 14, 2.3 2.6 times in postorbital 

 part of head and twice or somewhat less than twice in interorbital 

 space. Distance of origin of dorsal from base of pectorals less 

 than twice the diameter of the eye. Postorbital part of head 

 3.6 4 times in distance of anal from base of pectorals; length 

 of pectorals somewhat less or more than length of postorbital 

 part of head. Dark brown, lateral pores in a blackish line. 

 Length 600 mm. 



Distribution: Flores Sea (1600 M. mud!); Molucco Passage 

 (1994 M. coarse sand!); Halmahera Sea (827 M. hard bottom!); 

 Banda Sea (2477 M. mud!); East coast of Sumatra (750 M.) 

 Atlantic: West Indies, Sierra Leone, Gulf of Guinea; Indie: 

 Chagos Archipelago; East coast of Africa between Zanzibar 

 and Aden. 



9. Fam. SYNAPHOBRANCHIDAE. 



Body elongate, compressed, covered by rudimentary scales, 

 which are either lanceolate and placed at right angles or small and 

 rounded and imbedded- in the skin. Lateral line present. Anus 

 far behind gillopenings, but before middle of length. Dorsal 

 and anal confluent with caudal. Dorsal beginning close behind 

 pectorals (Histiobranchus] or behind anus (Synaphobranchus], 

 it is lower than anal. Pectorals present. Snout conical, pointed, 

 jaws about equal. Cleft of mouth reaching far behind eye, 

 closing completely. Nostrils large, the anterior in a short tube, 

 the posterior an opening shortly before eye. Tongue not free; 

 mucous membrane of mouth black. Teeth sharp, rather small, 



