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smaller one between them. Dark brownish above, lighter 

 below, fins yellowish. Length of the single specimen known 

 323 mm. [Type of the species in the zoological Museum of 

 Amsterdam]. 



Habitat: New Guinea (Humboldt Bay near mouth of Mbai 

 river!); collected by Dr. P. N. VAN Kampen. 



2. Brachysomophis (Achirophichthys) typus Blkr. 



Achirophichthys typus Bleeker, Ned. Tijdschr. Dierk. II. 1864 — 1865, p. 42. 



Atl. Ichth. IV. 1864, p. 39. 

 Achirophichthys typus Giinther, Cat. Brit. Mus. VIII, 1 870, p. 65. — Fische 



der Siidsee Heft IX. 1910, p. 398. 



Height 26; head about /S/^, more than 27^ times in trunk. 



Head and trunk somewhat longer than tail. Eye 16, less than 



twice in snout. Cleft of mouth wide, 2Y4 in head. Snout pointed. 



Lips with one row of very minute tubercular papillae. Origin 



of dorsal at a distance behind the ^ 



o o <^ 9 Q 



gillopenings equal to '/s length of o 



head. Dorsal and anal rather low, <? \ " ^ 



ending at some distance before the °o ^ "X 



point of the tail. In the upper jaw 00 q 0° 9 



a double series of conical teeth; the /J" °o\ \ « 



outer series situated close together, 1° v °4 ? \ 



the inner series shorter, situated at "^ • ^^^ 



some distance from the outer series, Fig. 152. Dentition oi Brachy- 



the teeth more widely set. In the '"'"'^^"' (Achirophichthys) typus 



... , . , . , , Blkr. a intermaxillary, ;« maxillary, 



mandibles a smgle series, the ante- , ,., , • . ^t 



*=" ' ma mandibulary, v vomerine teeth. 



rior teeth caniniform, widely set, the y^ 31/^, 



posterior teeth small and close 



together. On the intermaxillary plate 2 large teeth, on the 

 vomer a series of 4 widely set caniniform teeth. Dark brownish 

 above, lighter below. Length of the single specimen known 

 210 mm. [Type of the species in the British Museum seen by us]. 

 Habitat: Celebes!. 



9. Sphagebranchus Bloch. 



(Block, Ausland. Fische IX. 1795, p. 88). 



Much elongate, cylindrical. Anus .somewhat before or behind 



middle of length. Origin of dorsal above or generally more 



or less behind gillopenings. Dorsal and anal sometimes wanting 



or very low, not confluent, ending at a short distance from 



