179 



trals, which are also situated before the middle. Anal in the 

 last '/a f length. Adipose fin as far behind the dorsal as the 

 dorsal is behind the anterior edge of the pupil, situated 

 above the anal. Pectorals nearly equal to head without snout, 

 nearly reaching to end of ventrals. Caudal bifurcated. Anus 

 somewhat behind ventrals and behind middle of length. Scales 

 posteriorly roughly dentated. Minute teeth in narrow bands 

 on the jaws, on each side on the vomer and in a long stripe 

 on the palatines and very minute ones scattered on the 

 tongue. Long closely set, bristle-like gillrakers, in large speci- 

 mens longer than branchial filaments. Silvery grey, with dusky, 

 oblique crossbands and dorsally with large irregular blackish 

 spots. Fins hyaline. Tip of dorsal and caudal and median portion 

 of ventrals black. Length over 200 m.m. [Not seen by us]. 

 Habitat: West Coast of Sumatra (371 M.). Tropical Indie. 



8. Ipnops Giinther. 



(GiJNTHER Ann. Mag. Nat. Hist. II. 1878, p. 187. Rep. Challenger-Exp. 

 Deep-sea Fishes, XXII. 18,87, p. 190). 



Body elongate, subcylindrical, covered with large thin deci- 

 duous scales, and without luminous organs. Head depressed, 

 with broad, long, spatulate snout, the whole upper surface of 

 which is occupied by a pair of large, transparent, lamelliform 

 membrane bones, which cover a luminous organ, longitudinally 

 divided into two symmetrical halves. Eyes absent ; nostril 

 reduced to a minute opening in front of each lamina. Bones 

 of the lower and lateral parts of the head well ossified. Mouth 

 wide, with the lower jaw projecting; maxillary dilated behind. 

 Both jaws with narrow bands of villiform teeth; palate tooth- 

 less. Pectoral and ventral fins well developed, and, owing to 

 the shortness of the trunk, close together. Dorsal fin at a 

 short distance behind the vent; adipose fin absent; anal fin 

 moderately long; caudal subtruncated. Pseudobranchiae absent; 

 airbladder absent ; pyloric appendages absent. 



i. Ipnops murrayi Gthr. 



Ipnops rmirrayi Giinther, Ann. Mag. Nat. Hist. II. 1878, p. 187. Rep. Chall- 

 enger Exp. Deep-sea Fishes, XXII. 1887, p. 191. 



B. 12; D. 10; A. 13; P. 14; V. 8; L. lat. 55. 



Body elongate, cylindrical, tail compressed behind, head 



