406 DE. GUNTHEE ON THE FISHES OF CENTRAL AMERICA. 



Loricaria uracmitha Chagres. — — 



Macrodon microlepis Chagres. — — 



Tetragonopterus jMnameiisis ... — Pauama. — 



aeneus — Panama. — 



Chalcinopsis striatulus .... — ■ Panama. — 



chagrensis Chagres. — — 



Anacyrtus guatemalensis .... Cliagres. — — 



Haplochilus dovii — Costa Rica. — 



Poecilia elongata — Panama. — 



— — gillii Chagres. — 



§ 9. Descnjjtive Part. 



In the following descriptive part of this Memoir I have admitted full descriptions of 

 those species only which are not described elsewhere ; secondly, descriptive diagnoses of 

 those of which figures are given ; and, finally, notes on some knoAvn species, if they 

 appeared to contribute to their better knowledge. For the descriptions of all the other 

 species (the insertion of which would be a repetition of matter already published), I 

 must refer the student to my general work on Fishes. 



1. Centropomus appendiculatus. 

 Poey, Mem. Cub. ii. p. 119. 



D. 8jl. A.;l L.lat. 70-72. 



Nine longitudinal series of scales between the origin of the second dorsal fin and the 

 lateral line. The height of the body is contained four times in the total length (with- 

 out caudal), the length of the head twice and two-thirds. Prseorbital indistinctly 

 serrated ; suboperculum produced into a short flap, which extends to or nearly to the 

 vertical from the origin of the dorsal fin. The intermaxillary extends to below the 

 middle of the orbit. Dorsal spines of moderate strength ; the third is the longest, and 

 about half as long as the head. The second anal spine is generally longer than the third ; 

 but sometimes they are equal in length, and even shorter than the third dorsal spine. The 

 length of the ventral fin is more than one-half of its distance from the anal. Air-bladder 

 ^vith a pair of appendages anteriorly. Silvery ; dorsal fins blackish ; lateral line black. 



We have received this species (which was originally described from Cuban examples) 

 from Surinam and Mexico. Mr. Salvin and Capt. Dow obtained a specimen from the 

 Chagres River, 10 inches long. 



2. Centropomus medius. 



Giintli. Proc. Zool. Soc. 1864., p. 144. 



D. Sjl. A.i L.lat. 57. 

 Eight longitudinal series of scales between the origin of the second dorsal fin and the 

 lateral line. The height of the body is contained thric(! and three-fourths in the total 



