2. CAIAMOICHTHYS, 327 



Polypterus palmas, ^yres, Proc.Bost. Soc. Nat. Hist. iii. 1850, p. 181, 

 and Bost. Journ. Nat. Hist. vi. 1850, p. 241, with fig. 



From eight to eighteen dorsal finlets. Six or seven or eight scales 

 in an oblique series between the lateral line and dorsal finlets. 

 Lat. I. 54-60. Vert. 51/10. 

 Central and West Africa ; Nile. 



a. Eighteen dorsal finlets. 

 rt. Adult: stuffed. Cairo. From Dr. Riippell's Collection. 



/5. Sixteen dorsal finlets. 

 b-c. Adult (32 inches) : stufi^cd. Nile. 



y. Fifteen dorsal finlets. 



d. Adult. Nile. 



e. Adult: ■'tuffed. Senegal. 



/. Half-grown : stuffed. Gambia. Presented by P. Whitfield, Esq. 



?. Fourteen dorsal finlets. 

 g. Adult. West Africa. Purchased of Mr. Daltou. 



e. Thirteen dorsal finlets. 



h. Adult. West Africa. Purchased of Mr. Dal ton. 



i. Half-grown. Nile. From Mr. Petherick's Collection. 



^. Twelve dorsal finlets. 



Jc-l. Adult and half-grown : skins. West Africa. Purchased of 



Mr. Dalton. 

 m. Adult: stuffed. Chartoum. From Mr. Petherick's Collection. 



r]. Nine or tea dorsal finlets. 



n-p, q-t. Half-grown. Upper Nile. From Mr. Petherick's Col- 

 lection. 

 u. Half-grown. Senegal. Purchased of Mr. Cuming. 

 V, iv-x,\/-a. Young. West Africa. 

 /}. Young : skin. West Africa. Purchased of Mr. Dalton. 



0. Eight dorsal finlets. 



y-e. Young. Gambia. Purchased of Mr. Dalton. 



^. Half-grown. Sierra Leona. Purchased of Mr. Stevens. 



2. CAIAMOICHTHYS. 



Erpetoichthys, J. A. Stnith, Proc. R. Phys. Soc. Hdinh. 1865, p. 273, 



and 1866, p. 331. 

 Calamoichthys, J. A. Smith, Proc. B. Soc. Edinb. v. 1865-66, p. 654, 



or Ann. ^ Mag. Nat. Hist, xviii. p. 112. 



Distinguished from PoJgpterus by its greatly elongate form and 

 the absence of ventral fins. 

 Old Calabar. 



