1866.] DR. A. GUNTHEll ON THE FISHES OF PANAMA. 601 



longest, as long as the postorbital portion of head. Second anal 

 spine very strong, not much shorter than the third dorsal spiue. 

 Panama. 



CORVINA VERMICULARIS. 



D.10& A.|. 



Interorbital space only one-fourth wider than the orbit, its width 

 being one-fourth of the length of the head. Second dorsal spine 

 scarcely stronger than, and but half as long as, the third, the length 

 of which is nearly equal to that of the postorbital portion of the 

 head and of the second anal spine. 



Panama. 



Otolithus squamipinnis. 



D - 8 I^- A -lV L.ht.86. 



Spinous dorsal fin longer than high, with feeble spines. Colora- 

 tion uniform. 

 Panama. 



Caranx caninus. 



Ms A - 2 ^ L,lat ' 24 - 



Upper teeth in a villiform band, with an outer series of stronger 

 ones ; lower teeth in a single series, those in front canine-like ; teeth 

 on the vomer, palatines, and tongue. Lateral line slightly bent, the 

 width of the arch being contained once and one-third in the length of 

 the straight portion. Dorsal spines stout and short. 



Panama. 



Heros nigrofasciatus. 



U. Y . A.j. 



Lower lip interrupted in the middle. 

 Lakes of Amatitlan and Atitlan. 



Heros multispinosus. 



Three series of scales on 



Lower lip interrupted in the middle. Pectoral extending nearly 

 to the end of the anal. A large black spot in the middle of the side. 

 Lake of Nicaragua. 



Proc. Zool. Soc— 1866, No. XXXIX. 



