68 PROCEEDINGS OF THE ACADEMY OF [1897. 



Trachinocephalus limbatus (Eydoux & Souleyet). 



Saurus limbatus Eydoux & Souleyet, Voy. Bonite, Poiss, p. 199, pi. 7, fig. 

 3. 



Saurus myops, Gunther, Cat. Fishes, V, 398, 1864. 



One specimen, 6? inches long. 



Head 3J, depth 6, eye h\ ; scales 56 ; B. 12 ; D. 12 ; A. 15 ; P. 

 12; V. 8. 



Body somewhat compressed, back not elevated at dorsal. Snout 

 shorter than eye, lower jaw slightly projecting. Maxillary 1| in 

 head ; distance from snout to hinder margin of eye If in maxillary. 

 Top of head and edge of post-temporal finely corrugated, interor- 

 bital deeply concave, very little over half of eye. Fully developed 

 teeth all depressible. A new series of teeth seems to grow in the 

 maxillary to replace those broken off. Gill-rakers replaced by 

 small teeth. Seventeen scales before dorsal, very large elongated 

 scales on caudal. Dorsal higher than long, its origin midway be- 

 tween snout and adipose fin, its base longer than maxillary ; pec- 

 torals reach middle of base of ventrals, and to tenth scale of lateral ; 

 base of ventrals oblique, the two meeting and forming a V-shaped 

 area covered by rather large scales, some rather large scales in axil 

 of ventrals; ventrals nearly reach vent; origin of anal under tip of 

 depressed dorsal, tip of anal almost reaches caudal, base of anal 

 equals head without snout. Sides with two stripes about a scale 

 wide, and two narrower. Top of head with dark vermiculations ; 

 the supraclavicle, which is a large smooth plate, is black. No dark 

 band from eye across lower jaw. 



This species is very closely related to Trachinocephalus myops, of 

 the Atlantic. It may even prove to be the same when a number of 

 specimens are compared. A specimen of the latter species from 

 Bahia, Brazil, and another from Jamaica, differ from the specimen 

 here described, in having the body, especially the tail, less com- 

 pressed ; scales on cheeks more imbricated, in 8 rows, 7 in the spec- 

 imen here described, and a longer maxillary (If in head, twice dis- 

 tance from snout to hinder margin of eye). The bases of the anal 

 and dorsal are shorter, the former, being equal to the length of head 

 behind pupil, and the latter shorter than the maxillary. The ver- 

 miculations of the head coarser, and the brown stripe of one eye 

 across jaws is present. 



Saurida argyrophanes (Richardson). 



Saurus argyrophanes Richardson, Ich. China, 302. 

 Saurida argyrophanes, Gunther, Cat. V, 400, 1864. 



