306 sci^j>fiD^;. 



either in both the jaws, or in the upper alone, rraeopcrenhim den- 

 ticulated or crenulate. Scales of moderate size or small. Air-bladder 

 in some with a horn-like process on each side, directed forwards, in 

 others with numerous lateral appendages. Pyloric a})pendages iu 

 small number. 



Inhabitants of the tropical seas ; some eritering fresh waters. 



1. Otolithus aequidens. 

 Chv. ^- Veil. V, p. GG ; Smith, IU. Zool. S. Afr. Pisces, pi. 13 (too slender). 

 D.10|'± A.|. 



The height of the body is one-fifth of the total length, the length 

 of the head one-fourth. Lower jaw longest ; teetli in both the jaws 

 in broad card-like bands ; the upper maxillary reaches neaily to the 

 posterior margin of the orbit. Praioperculum scarcely denticulated, 

 with the angle rounded and rather projecting. Caudal fin cmarginate. 



Cape Seas. 



a, b. Large specimens : stuffed. 



2. Otolithus senegalensis. 

 Cuv. 4" Val. ix. p. 470. 



1). 10 I ^. A. y. L. lat. 45-50. Caoc. pylor. 0. 



The height of the body is one-sixth of the total length, the length 

 of the head one-fourth ; the diameter of the eye is onc^-sixth of the 

 latter. Canine teeth of moderate size. The caudal fin is elongate, 

 pointed, and equals the pectoral in length. Greenish, Avith narrow 

 oblique streaks or with indistinct spots. (Val.) 



Coast of Gorea. 



3. Otolithus carolinensis. 



Otolithus carolinensis, Cuv. ^ Val. ix. p. 475; /)ckai/,Ncw Yurh Fauna, 



Fishes, p. 72 ; Ilolhr. Ichth. S. Carol, p. li'.:?. pi'. 19. f. 2. 

 Cestreiis carolinensis, (rrutatc. Syst. eil. Ofay, p. 49. 



The height of the body is nearly one-fifth of jthe total length, the 

 length of the head two-sevenths. No canines in the lower jaw, 

 those of the upper moderate. The upper maxillary does not reach 

 to the posterior margin of tlie orltit. Pneoperculum scarcely denti- 

 culated, with the angle rounded and projecting, (/'audal nearly 

 tiTincated. Back and sides, dorsal and caudal fins spotted ; anal 

 blackish . Pseudobranchiae. 



(t. Adult. New York. 



h, c. Adult. From the Haslar Collection. 



</,? Fine specimen. Gulf of Mexico. From the Haslar Collection. 



— A. ^ ; pectoral shorter than the distance between the eye and 



the imint of the onercidimi. 



