312 SCI^NID^. 



c. Adult : skeleton. South America. Presented by Sir R. Schom- 



burgk. 

 d-h. Adult and half-grown. "West Indies, 

 i. Adidt ' stuffed : not good state. 

 k. Intestines of specimen c. 



The air-bladder is oblong, tapering to a long filiform point behind; 

 anteriorly it terminates in two slender horns, the length of which is 

 one-eleventh only of the entire length of the bladder. It is attached 

 to a prominence of the third vertebra. 



2. Ancylodon parvipinnis. 



Cue. <§• Val. V. p. 84. pi. 105. 



D. 7|^. A.:^. Cffic.pjlor. 4. Vert. 10/14. 



The lower jaw very prominent. The two dorsals separated from 

 each other by an interspace equal to the length of the fii'st ; the 

 first dorsal much lower than the second. Caudalis truncated, or 

 slightly rounded. Coloration uniform. (Cuv.) 



Cayenne. 



11. COLLICHTHTS. 



Scisena, sp., Cuv. ^- Val. v. p. 55 ; Richards. Iclith. Voy. Sulph. p. 87. 

 Otolithus, sp., Cantor, Catal. p. 67. 



Body elongated ; head very broad, witli the upper part very con- 

 vex ; muzzle wide, very oblique ; eye small. No large canines ; no 

 barbel. The second dorsal veiy elongate ; caudal pointed. The 

 second spine of the anal feeble. Pseudobranchiae none. Air-bladder 

 with a hom-Hke process on each side, or with many appendages, 

 anastomosing with one another ; number of the pyloric appendages 

 moderate. 



East Indian Seas. 



1. Collichtliys lucida. 



Scisena lucida, Richards. Ichth. Voy, Stdph. p, 87. pi. 44. f. 3, 4. 



D. 9 I ^. A. |. L. lat. 75. L. transv. f^. Ca;c. pyler. 13. 



Vert. 11/18. 



The height of the body is 4|- in the total length, the length of the 

 head four times ; the diameter of the eye is nearly one-fifth of the 

 length of the head, and equals the length of the snout ; the upper 

 maxillary reaches to behind the level of the posterior margin of the 

 orbit. The dcnticulations of the praBoperculum feeble and flexible ; 

 operculum and suboperculum not notched at their lower margins. 

 Caudal fin elongate, pointed. 



Chinese Sea. 



a. Fine specimen. China. Presented by J. R. Reeves, Esq. 

 h. Adult. China. Presented by Sir John Richardson. 

 r. Adult. China. Presented by Sir John Richardson. 



