284 SCOMBRESOCID^. 



II. Ventral fins extending to the ariffin of the a)ial. 



12. Exocoetus hillianus. 



? Exocoetus mesogaster, Block, xii. p. 17, tab. 399. 

 Exocoetus hillianus, Gosse, Nat. Sqf. Ja7n. p. 11, tab. 1. fig. 1; Pocy, 

 Mem. Cub. ii. p. 301. 



D. 12. A. 13. L. lat. 38. 



The height of the body is contained four times and two-thirds in 

 the tota^ length (without caudal), the length of the head four times 

 and a quarter. The depth of the head is rather less than the dis- 

 tance between the extremity of the snout and the hind margin of 

 the praeoperculum. Snout obtuse and very short, two-thirds the 

 length of the diameter of the eye, which is one-third of the length of 

 the head, and nearly equal to the width of the interorbital space, which 

 is quite flat. The pectoral fin does not extend to the end of the 

 dorsal. Ventral fins nearly midway between end of snout and root 

 of caudal, extending to the origin, of the anal. The dorsal com- 

 mences a little in advance of the anal, its anterior rays being as long 

 as the head. There are nineteen scales between the occiput and the 

 origin of the dorsal, and seven longitudinal series of scales between 

 the origin of the dorsal, and that of the anal. Pectoral uniform 

 blackish. The upper anterior half of the dorsal black ; ventral fins 

 blackish. 



West Indies. 



a. Five and a half inches long. West Indies. Purchased of Mr, 



Scrivener. 

 h. Four and a haK inches long. West Indies. From the Collection 



of the Zoological Society. 



III. Ventral fins long, extending beyond the origin of the anal. 



A. Mandible with a cutaneous appendage. 



1. Pectoral fins shortened, not more than half as long as the body (without 



caudal). 



13. Exocoetus pinnatibarbatus. 



Exocoetus pinnatibarbatus, Benn. Proc. Comm. Zool. Soc. i. p. 146. 

 D. 14. A. 11. 



Lower jaw with a cutaneous lip, which is dilated in the middle, 

 forming a fi-inged appendage. The pectoral tin extends somewhat 

 beyond the origin of the dorsal, the ventral to the caudal ; ventral 

 midway between the extremity of the snout and the root of the cau- 

 dal. Dorsal fin very high, its longest rays extending to or beyond 

 the middle of the caudal. Body low, slender, its length being much 

 less than the length of the head. Snout pointed, rather longer than 

 the eye, with the lower jaw very prominent. Pectoral with three 

 black cross bands ; the greater part of the dorsal and ventrals black. 



Atlantic coast of Northern Africa. 



tf. Two inchf's long. Presented by P. L. Sclater, Esq. 



