1 94 1 CATALOGUE OF FISHES OF TORTUGAS 289 



From snout to base of caudal the larger fish measures 36 mm.; head 15 mm.; 

 depth 20 mm.; eye 4.0 mm., included twice in the snout measured obliquely. 

 D. III-27; A. 24. 



Body with fairly numerous light-colored cirri, much more conspicuous than 

 in young Balistes capriscus, and up to two-thirds of the vertical diameter of the 

 pupil in length. Scales on caudal peduncle with a single strong slightly retrorse 

 spine; scales elsewhere on body chiefly with 3 spines along the anterior border, 

 the median one strongest; in clusters on the head, the central ones highest. 



Color very changeable; in darker phases showing several streaks radiating on 

 cheek from below eye; a net of dark color about elongated light spots upon 

 body, and round light spots on a dark ground on vertical fins. Under the dorsal 

 are three dark spots corresponding to those similarly placed in B. capriscus. 



W.H.L. 



The collection contains 3 specimens, 30, 34, and 40 mm. long, which appear to 

 belong to this genus. The specimens were found with small Balistes capriscus 

 and are without a locality label. The 2 larger ones probably are the ones listed 

 by Longley. The following proportions and enumerations are based on these 

 specimens, given in the order of their size from smallest to largest: Head 2.3, 

 2.45, 2.45; depth 1.65, 1.6, 1.6; snout to dorsal 2.1, 1.9, 2.0. Eye in head 3.0, 3.25, 

 3.25; snout 2.25, 1.85, 1.9; interorbital 2.6, 2.8, 2.9; dorsal spine 1.8, 1.7, 1.6; pec- 

 toral 2.5, 2.75, 2.6. D. III-25, III-25, III-27; A. 22, 23, 24. 



The largest specimen differs from the others in being much lighter in color, 

 and in having some short dermal tentacles scattered over the side, which have 

 been lost if ever present in the smaller ones. These young are not more slender 

 than those of Balistes capriscus, as has been stated, perhaps of adults, but are at 

 once distinguishable by the absence of modified, enlarged, platelike scales behind 

 the gill opening. S. F. H. 



Family MONACANTHIDAE. Filefishes 



Cantherines pullus (Ranzani) 



Noticed chiefly along the blind channel leading south inside Bird Key reef, 

 and outside the reef. 



In coloration commonly very dark brown; its pattern much like that some- 

 times displayed by Monacanthus ciliatus. A dark line bounded above and below 

 by light ones, all extending to base of caudal; sides above the lines with a V- 

 shaped mark, light in color, with its apex directed backward and one limb along 

 base of soft dorsal; another similar mark below them in corresponding relation 

 to anal; a conspicuous white spot at posterior ends of dorsal and anal. It is paler 

 over light bottom in both plain and striped phases. W. H. L. 



Only 1 specimen, 127 mm. long, was found in the collection. The following 

 proportions and enumerations are based upon it: Head, measured to upper angle 

 of gill slit, 3.2; depth at origin of anal 2.6; snout to base of dorsal spine 3.0. Eye 

 in head 4.3; snout 1.1; interorbital 3.5; caudal peduncle 3.0; pectoral 2.7; dorsal 



