346 PROCEEDINGS OF THE ACADEMY OF [^lay, 



NOTES ON A FEW FISHES FROM THE MOSQUITO COAST OF NICARAGUA. 



BY HENRY W. FOWLER. 



A few fishes have recently been received at the Academy of Natural 

 Sciences of Philadelphia from the Rev. William H. Fliick. They were 

 collected at Waunta Haulover, which is on the Mosquito coast or 

 Atlantic seaboard of Nicaragua. Though none are new, they prove 

 of interest on account of the locality. 



SILURID^. 



FELICHTHYS Swainsoii. 



1839. Nat. Hist. Fish. Amph. Rep., II, p. 305. 



Type F [elichthys] filamentosus Swainson, /. c. Based on Silurus 



bagre Bloch, Ichthyologie, IV, Pt. 11, 1797, p. 19, PI. 365. "Les grand 



rivieres du Bresil et de I'Amerique septentrionale." (Coll. M. de 



Burgsdorff Conseiller.) [Not of Linnaeus.] 



1. Felichthys marinus (Mitchill). 



1815. Silurus marinus Mitchill, Trans. Lit. Philos. Soc. New York, I, p. 433. 

 "New York. Taken June 30th, 1814." 



Head 3|; depth 4i; D. I, 7; A. viii, 16; P. I, 13; V. i, 5; width of 

 head 1^ in its length; depth of head, at posterior margin of the opercle, 

 If; snout 2f ; eye 5; width of mouth 2; interorbital space If; inter- 

 nasal space 3; base of the dorsal 2|; dorsal spine li; least depth 

 of caudal peduncle 3f ; base of anal If; first branched anal ray If; 

 ventral If. 



Body rather long, depressed at first, then compressed after the head, 

 and the greatest depth at the origin of the dorsal fin. Caudal peduncle 

 compressed, and its least depth about half its length, measured be- 

 tween the posterior base of the adipose dorsal, and the base of the 

 caudal. 



Head broad, depressed, more or less flattened below, and rising con- 

 vexly above, especially to the dorsal fin. Upper profile of the head a 

 little convex above the eye in front. Occipital buckler solid, its width 

 in front about equal to its length. Snout broad, a httle rounded when 

 viewed from above, and projecting a Uttle beyond the mandible. Eye 

 lateral, rather large, and its posterior margin about midway in the 

 length of the head, viewed laterally. Mouth broad, rounded, and with 



