890 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



than usual iu C. art^li. D. 12; A. 11; V. 12; P. 16; Lat. 1. 84 to <J5. 

 Northern Alaska; Yukon Kiver to Point Barro\v. (Batn.) 

 (Bean, Proc. U. S. Nat. Mus. iv, LSdl, 156.) 



Page 300. Instead, of OnGorhynchus chuiticha read: 

 "499. O. tchawytcha (Walb.) J. & G. 



The barbarous appearance of this name scarcely warrants so great a 

 change in its orthography. 



Page MHO. No. 515, Sal eel in HX Iwodii, should be erased. The speci- 

 mens in the British Museum, described by Dr. Giinther as Salmo hoodi 

 (vi, 150), belong to Salvelinus namaycush. The remaining types of Kich- 

 ardson's original description belong to Salveliwus fontinalis. 



Page 325. After Chologaster ayaxxi.zi add: 

 523 (/>) . papillifcr Forbes. 



The specimen from Southern Illinois, described in the text from the 

 -MSS. of Professor Forbes, proves to be distinct from C. agasxi.-J. 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 .1 iHhlyvpxis and Ty)i]iH<Jitliys. The character of "no papil- 

 lary ridges", assigned in the text to Choloyttxter, should therefore be 

 erased. 



(Chologaster papilliferuB Forbes, Aiuer. Nat. Jail. 18^2, 1.) 



Page 32!). Cy)))'ino(lon (jtbbonun appears to be identical with C. raric- 

 t/ritiiN, dill'ering possibly in slightly greater sixes and deeper coloration, 

 the ante-dorsal region being, in the males, of an intense steel-blue and 

 the lower parts largely salmon red. Head 3'f to 3f ; depth 2 to 2^. D. 

 II: A. 10; scales 20-1 3. 



For Cyprinodon gibbosus (15. !<: <!.) substitute 

 526. <'. bo vi it us I! A G. 



A doubtful species, differing from C. rarirt/dhm in having the head 3 

 in length, the eye I in head, the ventrals under anterior margin of dor- 

 sal, and the lin -rays 1). !>, A. S. Leon's Spring, Texas. , 



(I 1 -. A G. I'm.-. A.Cad. Nat. Sri. Hiila. is.',:;, I!-;), rtr.) 



'-><; (b). C. cximiii* (inl. 



J)ilfers from C. rar'n'tj<ttnN in having the head .'>.', in length, the eye I 

 in head: I >. 12, A. 12. ('oloration pale, the male largely golden. L. 2.^ 

 inchrs. ( 'hilmahna h'ivei'. 



(GiTOrd, I'rur. Ara.l. Nat. Sri. IMiila. L859, l"..-.) 



