88 NATURAL HISTORY BULLETIN. 



are not present; the outer half of the pectoral, except at the 

 margin, is black; and, excepting the narrow posterior margin, 

 the hinder fifth of the caudal fin is black. The upper surface 

 is clouded brownish without traces of the net-work pattern 

 common to //. acuhatus. On the specimens described the 

 rostrum is acute, and the spine extends forward to cover the 

 cavity receiving the tentacle so that it is not visible on speci- 

 mens viewed from above. As now known this species ranges 

 from Jamaica to Barbados in depths of seventy to a hundred 

 and fifty fathoms or more. 



Prionotus tribulus C. V., 1829,1V, 98, pi. 74. 



On specimens of less than an inch and a half the head is less 

 than one-third of the total length, the pectoral reaches farther 

 back than to the base of the anal but not quite as far back- 

 ward as to the tip of the anal fin. The transverse bands are 

 very distinct and reach across the entire flank. The tip of 

 the caudal is dark, as also the spot at the base, and there is a 

 fainter band across the middle of the fin. A light band 

 between two darker ones crosses the interorbital space into 

 the eye, giving the appearance in the latter of radiating bands 

 or streaks of dark and light. From the eye a dark patch 

 extends down upon the cheek; at each side of the symphysis, 

 on both jaws, there is a small spot, and midway between it 

 and the angle of the mouth there is another. The pectorals 

 are blackish, with white upper margins; the spot on the dorsal 

 is brownish. 



Tortugas. 



Gobius EiGENMANNi sd. n. Plate III, fig. I. 



D. 7+12; A. 13; P. 19; LI. 27; Ltr. 7. 



Body rather stout, body cavity more than half the length 

 from snout to base of caudal. Head two-ninths of the total 

 length or two-sevenths of the distance to the caudal base* 

 blunt and rounded anteriorly, very narrow between the eyes, 

 slightly compressed. Eyes large, one-third of the head, very 

 close together. Snout short, little more than half as long as 

 the eye. Mouth wide; maxillary reaching a vertical from 



