Dr. A. Giinther on new American Fishes. 229 



10. TCaranx dorsalis, Gill, sp. 



11. GoBius sopoRATOR, Cuv. & Val. 



12. Eleotris seminudus, n. sp. 



D. 7|1I. A. 9. The head and the trunk are naked ; the tail is 

 covered with small scales ; head depressed, broader than high, flat 

 above, its length being two-sevenths of the total. Snout rather ob- 

 tuse, longer than the eye, with the lower jaw somewhat prominent ; 

 the cleft of the mouth extends to below the anterior margin of the 

 orbit. Teeth in the upper jaw in a narrow band ; the lower has four 

 somewhat larger and recurved teeth in front, the others appear to 

 form a single series ; palate toothless. None of the fin-rays are pro- 

 longed ; the pectoral does not quite extend to the origin of the second 

 dorsal ; ventral much shorter than pectoral, its inner ray is the 

 longest, the others gradually decreasing in length outwards ; caudal 

 fin rounded. Brown, with numerous well-defined white cross stripes 

 on the head as well as on the body ; vertical fins black. 



Although there is only a single example, 20 lines long, in the col- 

 lection, the characters of this species are so well marked that I do 

 not hesitate to describe it. 



13. Salarias atlanticvs. Cut. & Val. 



14. Clinus Delalanoii, Cuv. & Val. 



15. Clinvs macrocepbalus, Gthr. 



16. Cremnobates monophthalmus, Gthr. 



17. Atherinichthys pachylepis, n. sp. 



D. A\^. A. —j^. L. lat. 41. L. transv. 7. The height of 



the body is nearly equal to the length of the head, and contained 

 five times and a half or five times and a third in the total length 

 (without caudal). The snout is short, not longer than the diameter 

 of the eve, and the cleft of the mouth does not extend backwards to 

 below the anterior margin of the eye. The anterior dorsal is com- 

 posed of short, feeble spines, and its origin is opposite to the fourth 

 or fifth anal ray. The pectoral fin is much longer than the head. 

 The silvery streak occupies the adjoining halves of the third and 

 fourth series of scales. 



Two specimens, 6 inches long, were in the collection. 



18. MUGIL BRASILIENSI8, AgaSS. 



19. MUGIL PROBOSCIDEUS, Gthr. 



20. GoBiESox RHODOspiLus, n. sp. 



D. 6. A. .5. C. 8-9. p. 1 7. A vertical fold of the skin along 

 the lower half of the base of the pectoral ; the coracoid is scarcely 

 below the level of the upper margin of the pectoral. The distance 

 of the origin of the dorsal fin from the caudal is contained twice and 



