890 COXTEIBUTIONS TO XOETH AMEEICAX ICHTHYOLOGY IV. 
than usual iu C. artedi. D. 12; A. 11; T. 12; P. 16; Lat. 1. 84 to Do. 
Xoitheru Alaska : Yukon Elver to Point Barrow. {Bean.) 
(Beau. Proc. U. S. X’at. Mils, iv, ISSl, 156.) 
Paiie 300. Instead of Oncorhynchus chouicha read: 
499. O. tcliawytelia (Walb.) J. A: G. 
Tile barbarous appearance of this name scarcely warrants so great a 
change in its orthography. 
Page 320. Xo. 515, Snivel in ns hoodii, should be erased. The speci- 
mens iu the British Museum, described by Dr. Giiuther as Salmo hoodi 
(vi, 150), belong to Salvelinns namoycush. The remaining types of Kich- 
ai-dson’s original description belong to Salvelinns fontinalis. 
Page 325. After Choloyaster agassizi add: 
.52:4 (b). C. papilliler Forbes. 
The specimen from Southern Illinois, described in the text from the 
51SS. of Professor Forbes, proves to be distinct from C. agassizi. Several 
other specimens have been since obtained. It is further distinguished 
from the other members of the genus by the presence of tactile papillary 
ridges, as in Amblyopsis Typhlichtitys. The character of “no jiapil- 
lary ridges"', assigned in the text to Chologastev, should therefore be 
erased. 
{Chologaster papilliferus Forbes, Anier. Xat. Jan. 1SS2, 1.) 
Page 329. Cyprinodon gilhosns appears to be identical with C. varie- 
gatns. difteriug possibly in slightly greater size and deeper coloration, 
the ante-dorsal region toeing, in the males, of an intense steel-blue and 
the lower parts largely salmon-red. Head 3f to 3f ; depth 2 to 2f. D. 
11: A. 10; scales 26-13. 
For Cyprinodon gihhosns (B. & G.) substitute — 
.526. C. bovisius B. 6c. G. 
A doubtful species, difiering from C. variegatns in having the head 3 
in length, the eye 4 in head, the ventrals under anterior margin of dor- 
sal, and the liu-rays I). 9, A. 8. Leoifs Spring, Texas. 
(B. 6c G. Proc. Acad. Xat. Sci. Pbila. 1853, 389, etc.) 
•526 (6). C. exiiniiis Grd. 
Differs from C. variegatns in having the head 3;^ in length, the eye 4 
in head; D. 12, A. 12. Coloration iiale, the male largely golden. L. 24 
inches. Chihuahua Eirer. 
(Girard, Proc. Acad. X'at. Sci. Pbila. 1859, 158.) 
