6. HiEMULON. 311 



and 3^ in the total. The cleft of the mouth is rather wide, the upper 

 maxillary reaching nearly to below the centre of the eye. The dorsal 

 fin notched, wij;h the spines of moderate strength, and with the 

 fourth longest. Caudalis forked, but the basal half only scaly ; the 

 pectoral and ventral fins without any scales. Coloration immaculate. 



Coast of Brazil. 



7. Hsemulon canna. 



Cuv. 8f Val. V. p. 233 ; ? Castelnau, Anim. nouv. ou rares de I' Amir, 

 du Slid, Poiss. p. 11 (not Agass.). 



D. J|. A. |. L. lat. 48. L. transv. 5/13. 



The height of the body equals the length of the head, and is 3§ in 

 the total. The snout is elongate and compressed, and nearly twice 

 the width of the eye, the diameter of which is 5| in the length of 

 the head. The cleft of the mouth is wide, but the upper maxillary 

 does not reach the vertical from the front margin of the eye. Prae- 

 operculum with the posterior limb nearly vertical, and with rather 

 stronger denticulations at the angle. Dorsal fin notched, with strong 

 spines, the fourth spine longest, 2| in the length of the head ; the 

 caudal forked. The second anal spine very strong, rather longer 

 than the third, but not quite so long as the fourth spine of the dorsal 

 (in yoimg specimens rather longer). The length of the pectoral is 

 4^ in the total. Oblique black bands descend from the back along 

 the series of the scales ; dorsal, caudal, anal, and ventral fins blackish. 



Coasts of Tropical America. 



a-cL Adult and half-grown : skins. Jamaica. From Dr. Parnell's 



Collection. 

 e. Adult. Guatemala. Purchased of Mi-. Frank. 

 /. Half-grown. Puerto CabeUo. Purchased of Mr. Brandt. 



8. HaBmulon album. 

 Ctw. Sr Val. v. p. 241. 



D. J|. A. |. L. lat. 50. L. transv. 7/16. 



The height of the bodyis 3^ in the total length, the length of the 

 head 3|; the diameter of the eye is one-sixth of the latter, and 2^ 

 in the length of the snout ; the cleft of the mouth is wide, but the 

 upper maxiUary does not reach to the vertical from the front margin 

 of the orbit. Praeoperculum finely and equally serrated, with the 

 posterior limb nearly vertical. The dorsal fin scarcely notched ; 

 spines moderately strong, the fourth longest, 2i in the length of the 

 head. Caudalis forked. The second and third anal spines nearly 

 equal in length and strength, rather longer than one-half of the 

 foui-th dorsal spine. Coloration uniform (in a dried state) ; no black 

 spot behind the angle of prajopercidum. 



Caribbean Sea. 



a. Seventeen inches long: skin. Jamaica. From Dr. Parnell's Col- 

 lection. 



