1318 Bulletin 47, United States National Musenm. 



about If in head; pectorals much shorter than head; interorbital area 

 much less than width of orbit; snout obtuse, not much longer than eye; 

 cleft of mouth small, the maxillary extending to front of eye; dorsal and 

 anal spines exceedingly strong, the third dorsal spine the longest; snout 

 naked, the remainder of the head being scaly ; each ray of the soft fins 

 accompanied by a series of minute scales, covering the caudal; caudal tin 

 slightly emarginate. Color grayish-silvery, with 5 jet-black crossbands 

 in the adult; fins Idackisb. A strongly marked and handsome species. 

 Length 1 foot. Pacific coast of tropical America; not rare at Mazatlan 

 and Panama. (Named for Capt. John M. Dow, its discoverer.) 



Pristipoma dovii, Gunther, Proc. Zool. Soc. London 1864, 23, Panama. 

 Pomadasis dovii, Jordan .<c Gilbert, Proc. U. S. Nat. Mus. 1881, 386. 

 Anisotremus dovii, Jordan & Fesler, I. c, 484, 1893. 



Subgenus ANISOTREMUS, Gill. 

 1684. AMSOTREMUS SUIlUfAMENSlS (Bloch). 



(Pompon.) 



Head 3; depth 2i; eye 4 in head; snout 2f. D. XII, 16; A. Ill, 8 or 9; 

 scales 6-(9 in oblique series)-52-14 or 15, lateral line with 49 pores. Second 

 anal spine 1| ; fourth dorsal spine 2; pectoral as long as head. Body 

 oblong-elliptical, the back elevated, the profile strongly convex at nape, 

 becoming straighter anteriorly; interorbital area a little more than eye; 

 snout rather sharp; mouth short, lips very thick, the maxillary extending 

 to anterior edge of eye; outside teeth of .jaws conical, notably longer 

 and stronger than the others ; preopercle evenly serrate on vertical edge, 

 weaker at angle; dorsal and anal spines strong, second anal stronger and 

 a little longer than the highest dorsal spine, about 4 head; soft dorsal 

 lower, about i head; pectoral falcate, as long as head; caudal forked. 

 Scales above lateral line arranged in obli([ue series which are not par- 

 allel with it; scales above lateral line on anterior part of body more or 

 less enlarged, especially in the adult, fewer than 6 to 8 rows in a vertical 

 series between first dorsal spine and lateral line. Adult gray, with a dark 

 spot at the base of each scale on anterior part of back ; fins all dark, no 

 distinct opercular spot. Young with 2 black horizontal stripes, one of 

 these from eye to a point just before the base of caudal, where it is inter- 

 rupted, a round black spot following at base of caudal ; another stripe 

 above this and parallel with it; scales of anterior part of back more or 

 less distinctly marked with black spots, one on each scale, these spots not 

 confluent. Length 2 to 3 feet. Tropical America, from Florida to Brazil, 

 recently taken by Evermann &. Bean in Indian Kiver; perhaps also occur- 

 ring on the Pacific coast, as specimens from the Galapagos are very similar 

 to those from Cuba, and perhaps referable rather to siirinamensis than to 

 hiterriiptus. The species probably passes by degrees into Anisotremus 

 interruptKS, from the Galapagos northward. This species is the most 

 widely distributed of any of the genus. It reaches a larger size than the 



