434 PKOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



The veiitrals and pectorals moderate, the length of the latter almost 

 equaling the height of the body at the ventrals. 



Color. — Brilliant, the ground color being yellowish-white with six 

 deep black longitudinal stripes equidistant from each other ; broader 

 anteriorly ; about as wide as the interspaces, and almost coalescing at 

 the base of the caudal fin, an indistinct stripe of same width on each 

 side of the dorsal line, about midway between the uppermost of the 

 black lines and the center of the body. Cheeks brilliant white, a deep 

 black blotch under and confluent with the eye. Dorsal and anal fins 

 with indistinct blackish longitudinal lines. Sides of certain individ- 

 uals, apparently males, with eleven or twelve distinct vertical bars, 

 about equal in width to the longitudinal bars, the arrangement of 

 these intersecting stripes suggesting the idea of a gridiron, whence 

 the name " craticula.''^ 



Length of the largest individuals about 2^ inches. 



Radial formula.— D.l ; A, 9-10. Scales 3G— 10. 



21. Stolephorus perthecatus, n. sp. 



A single specimen 3.6 inches long, No. 30483, was collected by Mr. 

 Silas Stearns, at Pensacola, Florida. 



Description.— Body not carinated or serrated, somewhat compressed. 

 Height of body contained 5 times in its length without caudal, and about 

 C times in its total length. Length of head contained 32 times in 

 standard length. Diameter of the eye greater than length of snout and 

 contained ^ times in length of head. Width of eye equal to that of 

 interorbital space. Snout conical, slightly compressed. Teeth minute 

 in both jaws. Maxillary with acute tip, extending back almost to the 

 gill-opening; toothed to the posterior angle of the straight inferior 

 edge. Gill-rakers rather numerous, the longest two-thirds as lon^ as 

 the diameter of the eye. 



Origin of the dorsal fin midway between root of caudal fin and the 

 center of the pupil, and also between the tip of the snout and the end 

 of the middle caudal rays. 



Anal fin inserted vertically below penultimate ray of dorsal fin. 



Pectorals considerably longer than ventrals and more than half as 

 long as head, their tips falling short of reaching the origin of the ven- 

 trals by a distance almost equal to the diameter of the eye. 



Ventrals half as long as lower jaw, inserted far in advance of the 

 dorsal, their tips reaching to the perpendicular of the origin of the dor- 

 sal. 



Axillary sheaths exceedingly large ; in the case of ventrals and pec- 

 torals almost equaling the length of the fins. 



Silvery stripe narrow, one-fourth height of body at the ventrals, not 

 more than half as wide as the eye. Scales in lateral line about 38. 



Radial formula.— D. ii, 11 ; A. i, 16. 



