DR. GUNTHER ON THE FISHES OF CENTRAL AMERICA. 471 
191. MicropEsMus DIPUS. 
Giinth. /. ¢., pl. 3. fig. 2. 
DRO0 wpa Sac aN et. Vist, 
The depth of the body is about one-eighteenth of the total length ; the length of the 
head one-eleventh. The head is rather compressed, the snout short, the mouth very 
narrow, and the lower jaw very prominent. The minute eye is lateral, and in the 
anterior third of the length of the head. The dorsal fin commences at a distance from 
the occiput which is somewhat less than the length of the head; it is nearly even, and 
the rays are very distinct, the interradial membrane being thin and transparent. ‘The 
anal fin commences immediately behind the vent. The caudal rays are much more 
slender and more closely set than those of the dorsal and anal; the caudal fin is 
rounded, two-thirds of the length of the head. Pectorals as long as the ventrals, and 
half as long as the head; the latter fins are close together, and inserted a little behind 
the root of the pectoral. Upper parts uniform brownish olive. 
‘The single specimen is 44 inches long, it was found by Capt. Dow at Panama. 
192. BroruLa MULTIBARBATA (Schleg.). 
Mr. Salvin has found on the Pacific coast of Guatemala a small fish, which I am 
unable to distinguish from the Indian or Japanese species. However, having only small 
examples for examination, I am not prepared to maintain the specific identity of these 
fishes. 
195. CirHaRricHTHys SPILOPTERUS. (Plate LX XX. fig. 2'.) 
Giinth. Fish. iv. p. 421. 
D. 76-78. <A. 60-65. L. lat. 47-50. 
The height of the body is two-fifths of the total length (without caudal), the length 
of the head two-sevenths. Scales of the lateral line subquadrangular; lateral line 
nearly straight, gently descending anteriorly. Snout with the jaws equal in front, 
rather longer than the eye, the diameter of which is one-sixth of the length of the 
head. The maxillary, the length of which is contained twice and two-thirds in that of 
the head, extends beyond the middle of the orbit. Anterior teeth of the upper jaw 
widely set, much larger than the posterior, which are close together and very small ; 
the lower jaw with seven or eight distant teeth of moderate size on each side. Eyes 
separated by a very narrow scaleless ridge, their front margins being nearly on the same 
level. Fin-rays scaly. The dorsal commences a little before the upper eye, and 
terminates close by the caudal; its longest rays are behind the middle, and one-half of 
the length of the head. Anal spine none. Caudal rounded ; its length is one-sixth of 
the total. The pectoral is rather longer than half the length of the head; ventral 
much shorter, extending beyond the origin of the anal. Gill-rakers lanceolate, pointed, 
' The artist has unfortunately omitted to reverse the view of this figure. 
