Dr. A. Gunther on new Species of Fishes. 401 



jecting beyond the lower. Head low, elongate ; snout very 

 long, but much shorter than the postorbital portion of the 

 head, the hind margin of the orbit being in the anterior half 

 of the head. The fold of the lower lip does not extend across 

 the symphysis. Barbels longer than the eye, which is of small 

 size. Origin of the dorsal tin in advance of the base of the 

 ventral, and a little nearer to the end of the snout than to the 

 root of the caudal. The osseous dorsal ray is very strong and 

 long, armed with strong teetli. Anal fin narrow, not nearly 

 reaching the caudal. The height of the body is nearly equal 

 to the length of the head, which is one fifth of the total (with- 

 out caudal). Interorbital space broad, very slightly convex. 

 Anal scales but little developed. Coloration uniform. 



Two specimens (skins) were presented by Capt. Biddulph ; 

 one was obtained by him on the Kashgar river, the other in 

 Yarkand. The larger is 15| inches long. 



Thynnichthys cochinensis. 

 D. 12. A. 7. L. lat. ca. 110. 



The height of the body is contained thrice in the total 

 length (witbout caudal), the length of the head thrice and two 

 thirds. The diameter of the eye is two ninths of the length of 

 the head, and less than that of the snout. Origin of the dorsal 

 fin but very little in advance of the root of the ventral, some- 

 what nearer to the end of the snout than to the base of the 

 caudal. Caudal peduncle rather deep ; caudal fin broad, deeply 

 cleft. Coloration uniform. 



This species has much smaller scales than any of its con- 

 geners, Th. tliynnoides and harengula having 60, and Tli. 

 polylepis 75 transverse series. 



One skin, 8 inches long, from Cochin ; purchased. 



Mtircenichthys hreviceps. 



The origin of the dorsal fin is twice as distant from the 

 vent as from the gill-opening. The length of the head is only 

 one third or two sevenths of the distance of the gill-opening 

 from the vent, or one eleventh of the total length. Snout very 

 long and narrow, the cleft of the mouth extending to behind 

 the eye. Teeth biserial. 



Distinguished from M. macropterus by its comparatively 

 shoi-ter head and longer snout. 



One specimen, 20 Inches long, from Tasmania ; presented 

 by Morton Allport, Esq. A second, smaller example of un- 

 known origin. 



Ann. (k Mag. N. Hist. Ser. 4. Vol. xvii. 27 



