12. uKUUKs. ;',4<) 



line: 



-J 



Total length 7 s 



Height of the body 2 5 



Lei4>th of the hc^ad 1 lo 



Diameter of the eye 7 



Length of the second dorsal spine 1 1 



of the ninth dcn^sal spine r> 



of the middle caudal ray ( ) 



of a caudal lobe 1 lo" 



of the second anal spine 7', 



-of the third anal spine 8^ 



of the pectoral fin 1 11 



of the ventral fin 1 1 



of the scjuamous Hap i( ) 



of a scale 3.j 



Height of a scale , 4] 



12. Gerres squamipimiis. (Ti-atk XXI.) 

 1). f^. A.|. L. lat. 4;i-44. L. transv. 5/1;?. 



The height of the body is 2| in the total length (without caudal 

 fin) ; the diameter of the eye is rVi in the length of the head, rathei- 

 shorter than the snout, but e(jual to tlie distance between the eyes. 

 The groove for the processes of the intei-maxillary bones is broad, 

 triangular, entirely scaleless, and does not reach to the vertical from 

 the centre of the eye. The dorsal spines are rather slender and 

 slightly compressed; the second is 1^ in the length of th(> head. 

 The second anal spine is rather strong, stronger and a little longer 

 than the third ; its length is 1^ in that of the head : caudal fin 

 deeply forked, entirely covered with scales ; the length of a lobe is 

 nearly ;5| in the total. Uniform silvery; the margin of the dorsnl 

 fin blackish. 



Caribbean Sea. 



a-d. Adult : skins, .famaica. From Dr. Parnell's Collection. 

 e. Half-grown: skin. Jamaica. From Dr. Paniell's Collection. 

 /. Adult: not good state. Guatemala. Purchased of Mr. Frank. 



Description. — The body is moderately elevated, its greatest depth 

 being below the anterior part of the spinous dorsal, where it is con- 

 tained 2g in the total length, without caudal fin, or 'S^ in' the same 

 length, the caudal included. The upper profile, anteriorly and nos- 

 teriorly, descends as much as the lower ascends, and they m(H't 

 at an acute angle in front. The length of the head is 8^ in the 

 total, without caudal fin. The snout is rather longer than the dia- 

 meter of the eye, and the u})pcr maxillary extends slightly beyond 

 the anterior margin of the eye ; the part of the maxillary which is 

 not hidd-n by the pra^orbital is rather elongate, ovate. The groove 

 for the i^rocesses of the intermaxillary bones is rather broad, trian- 

 gular, widening anteriorly, with a rounded posterior angle, which is 

 situated in the vertical fiom the anterior third of the ort)it. The 



