22 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.63 



nyms he includes are Crenilahrus chdbrolii Lesson and Cossyphus 

 maldat Valenciennes, both of which belong with his G. hilunulatus, 

 as we have already noticed. Gunther's figure certainly represents 

 L. trotteri, only differing in the minor point of a small blackish 

 blotch at the front of the spinous dorsal. His specimen was 255 

 mm. long and appears to have been the only one ever obtained. 

 Jordan and Scale credit Gunther's record as L. hirsutv^,^ still per- 

 petuating Gunther's error. 



(For Dr. Spencer Trotter, of the chair in biology, in Swarthmore 

 College.) 



CHROMIS CUPREUS, new species. 



Head, 3; depth, 2; D. XIII, 12; A. II, 12; P. ii, 18; V. I, 5; scales 

 21 in upper arch of lateral line, and 12 pores in horizontal section ; 

 4 scales above lateral line to spinous dorsal origin, 3 above to soft 

 dorsal origin, and 13 below to spinous anal origin; 36 predorsal 

 scales ; head width, If its length ; fourth dorsal spine. If ; fifth dorsal 

 ray, 1§; second anal spine, 2; first anal ray, 1^; lower caudal lobe 

 (damaged), 1?; least depth of caudal peduncle, 2-J; pectoral, 1; 

 ventral, 1^; snout, 4yV in head from upper jaw tip; eye, 3|; maxil- 

 lar}'^, 2f ; interorbital, 3. 



Body deeply ovoid, compressed, predorsal slightly trenchant, pro- 

 files alike and deepest about middle of pectoral. Caudal peduncle 

 well compressed, length four-fifths its least depth. 



Head deep, compressed, flattened sides slightly approximate below. 

 Snout short, declivous, convex, length three-fifths its width. Eye 

 scarcely elevated, center about first third in head. Mouth small, 

 gape short, and lower jaw very slightly projecting. Maxillary free, 

 reaches eye ; expansion 2^ in eye. Lips free, moderate. Teeth conic, 

 simple, as outer row of larger more robust ones and inner narrow 

 band of smaller ones. Nostril about last third in snout. Inter- 

 orbital convex. Preopercle and preorbital edges entire. Single 

 short strong opercular spine. 



Gill-opening forward opposite nostril. Gill-rakers 9+24, lanceo- 

 late. If in gill-filaments, which lyV "^ eye. Pseudobranchiae large, 

 three-fifths of gill-filaments. 



Scales in rows parallel with lateral line, rows converging poste- 

 riorly. Smaller scales all along body edges. Small scales over all 

 fins basally, becoming minute and more numerous over rayed fins. 

 Muzzle, except lips, covered densely with small scales, also small 

 scales crowded on top of head and suborbital. Cheek with 8 rows 

 of scales, median row enlarged. Scales with 6 basal radiating striae ; 

 apical denticles 90; circuli very fine. Tubes in lateral line large, 



»Bull. Bur. Fish., vol. 25, 1905 (1906). p. 293. 



