94 



A few rudimentary caeca round the pylorus only. 

 Colours in spirit : blackish, silvered over ; fins blackish grey. 

 Numerous specimens, the largest 9- inches long. 



Andaman Sea, 271 and 405 fathoms : off Travancore coast, 360 and 406 

 fathoms. 



t» , at ,,»», H 17 125 144 160 161 164 334 336 337 



Regd. JNos. 11661, y - y, — , — , -j-, ~> T' T' T' T' 



73. Glyptophidium, macropus, Alcock. 



Qlyptophidium macropus, Alcock, Journ. Aa. Soc. Bengal, Vol. LXIII. pt. 2, 1894, p. 122, pi. vi. fig. 3 : 

 Illustrations of the Zoology of the Investigator, Fishes, pl. XV. fig. 6. 



Differs from 0. argenteum only in the following particulars : — 



The length of the head is only about a fourth the total. 



The angle of the preoperculum is notched, the angles of the notch being 

 rounded off. 



Each pseudobranch consists of from 5 to 8 filaments. 



The length of the pectorals is equal to that of the head behind the middle 

 of the eye. 



Each ventral consists of two rays of which the inner one is an eye-length 

 longer than the head. 



The pyloric caeca are longer. 



The largest specimen is 5^ inches long. 



Colours in spirit : head, iris and body silvery, the body finely speckled with 

 black : vertical fins greyish with blackish tips, pectorals blackish, ventrals milk 

 white. 



Bay of Bengal, 145 to 250 fathoms. 



Regd. Nos. 13529-13535. 



Lamprogrammus, Alcock. 



Lamprogrammus, Alcock, Ann. Mag. Nat. Hiat., July 1891, and Jonrn. As. Soc. Bengal, Vol. LX V. pt. 2, 1896, 

 p. 309. 



Body elongate, compressed, of good height ; tail long, tapering to a lash- 

 like filament : head compressed, with soft, almost membranaceous, frilled and 

 crested bones : both head and body covered with thin deciduous scales. 



Lateral line broad, very conspicuous, continued at least halfway along the 

 tail ; its scales much enlarged, each being furnished with a (luminous) gland. 



Snout not overhanging the jaws, without barbels. Mouth wide. Villiform 

 teeth in bands on the jaws and palatines and in a A-shaped band on the vomer. 

 Eye of moderate size. 



