NATURAL SCIENCES OP PHILADELPHIA. 83 



similar to that figured by Steindachner of Vienna in Cyprinus c a r p i o) ; Pine 



Lake, etc., etc. 



Roccus chrysops Gill. Labrax Auct. No. 246. Saginaw Bay. 



Micropterus nigricans Gill, MSS. Huro C. V. Grystes Agass., Lake 

 Superior. Nos. 116 Orchard L. Oakland Co., 122 Strait's Lake do., 317- 

 18-19 Bald Eagle Lake, do., 261 Copenaconic Lake, Grosse Isle. 



Micropterus fasciatus Gill, MSS. Cichla Leseur. Grystes Agass. Black 

 Bass of the Lakes and the Ohio. 291, 296, Swartz Creek, Genesee Co. 

 235, Saginaw Bay. Grosse Isle. 



Pomotis maculatus* Gill. Pomotis vulgaris Richardson. Fauna Bor. 

 Americana, et Auctorum. Thirty-five spec. No. 56, 58, 59, Waterford, 

 Oakland Co. ; 111, Clinton Riv. ; 264, Long Lake, Genesee Co., Copena- 

 conic Lake, do., and Grosse Isle. 

 This species also occurs in the Eastern States and in South Carolina. The 



dimensions of the largest specimen are : length, 24" ; greatest height of body, 



10" 5'". 



Lepomis incisorf Holbr., Ichth. S. Ca. Pomotis C. V. Forty-five spec. 



Nos. 60, 60 a , 61, 265, 258, from same localities as the preceding, and 



124, 126, 327, from Strait's Lake, Oakland Co. ; 268 near Crooked Lake, 



Genesee Co. 



The identity of this species with that so abundant in the South, is rather 



unexpected. I find, indeed, an additional anal ray in a few specimens from 



South Carolina, but no other difference. The largest specimen measures : 



length, 25 v 5 /// ; depth 11". Independent of the difference between this and 



* Bryttus oculatusisa pretty species obtained by Dr. J. H. Slack in Lake Whittlesey. Minn. 

 The head is compressed, elongate, contained (measured to just below opercular flap), two and three- 

 fifths or three-quarters to base of caudal; front rather concave, one diameter of the eye reaches to 

 premaxillary border, and five and six measures the length of the head. Mandible not longer when 

 closed ; end of maxillary opposite half-way between pupil and edge of orbit. Scales on cheek in 



5 

 six rows, below suborbital bones; on body 33-4. Superior posterior border of operculum strong, 



12 

 rounded, serrate. Dorsal with spines well developed, and no depression between the divisions 10 

 10; caudal slightly emarginate, +16+; anal projecting beyond second dorsal, 39, its first ray 

 opposite the last spinous dorsal. Ventrals quite or barely reaching anal, 1 5; pectorals extend- 

 ing a little further posteriorly, 12. Greatest depth 2% times to base of caudal; depth at posterior 

 border of second dorsal one-half depth from first dorsal to origin of ventral ; length of caudal pe- 

 duncle (to line of dorsal) cont. three times from base of caudal to opercular border below flap. 



Color in spirits reddish, not punctulate; lower surfaces and fins golden. Second dorsal, anal, 

 and caudal, punctulate, the base of the latter slightly spotted. Opercular flap well developed, 

 outline nearly circular, marked with a black central disc, which is interrupted by the convex 

 border of the operculum, and entirely surrounded by a broad white (? red) border. 



The length of this species is about four inches. 



t Lepomis longispinisof the Mus. Academy was obtained by Dr. Heermann on hisjourney 

 from St. Louis to Southern California. 



It approaches the speciosus of Girard, but has a longer head and fins, the spines much more 

 developed, and a larger eye. Front slightly concave ; dorsal outline elongate gibbous. 



Greatest depth is measured 2% times from muzzle to base of caudal. The head measures 3^4 

 times to the same point ; the latter fin If times in total length. Kye three times from muzzle to 

 suture between operculum and suboperculum; a little longer than length of muzzle, and equal 

 frontal width ; maxillary reaching its anterior border. Four rows scales below the orbit. Supe- 

 rior posterior process of operculum distinguishable from the short flap; not serrate; preopercu- 

 lum finely serrate. Ventrals reaching first anal spine ; pectorals a little longer. First soft ray of 

 anal equal base of the fin ; third long ray little shorter. Fifth (longest) ray of bony dorsal as long 

 as or longer than half depth of body, measuring to the eleventh row of scales from its base, scales 

 y fl 3 41. Caudal not deeply furcate. No trace of palatine teeth. Radii D.10 11; C4-17-4-; A. 3 

 11; V. 1 5; P. 1 12. Length three and one-half inches. General color olivaceous, (possibly 

 stained,) dorsal region, front and baf.e of tail, brown. Belly brighter; an elongate black spot on 

 upper part of operculum, without lighter border, and a round one on the middle of the last rays of 

 the second dorsal. 



This is a more elongate species than the incisor, which it resembles, has longer fins and fewer 

 rays in the second dorsal. The opercular flap is much smaller. 



1865.] 



