REPORT OF COMMISSIONER OF FISH AND FISHERIES. [30] 



91.— POGONICHTHYS Girard. (96, 97) 



350. Pogonichthys macrolepidotus ^ Ayres. T. (350, 351) 



92.— STYPODON Garman. (976.) 



351. Stypodon signifer Garman. R. (352) 



93.— MYLOCHILUS Agaesiz. (98) 



352. Mylochilus caurinus Richardson. T. (353) 



94.— MYLOPHARODON Ayres. (99) 



353. Mylopharodon conocephalus Baird & Girard. T. (225) 



95.— PTYCHOCHILUS Agassiz. (100) 



354. Ptychochilus oregonensis Richardson. T. (355) 



355. Ptychochilusrapax 2 Girard. T. (356) 



356. Ptychochilus harfordi Jordan & Gilbert. T. (357) 



357. Ptychochilus lucius Girard. T. (358) 



96.— GILA Baird & Girard. (101) 



358. Gila elegans Baird & Girard. R. (3.59) 



359. Gila robusta Baird ife Girard. R. (360) 



360. Gila grahami Baird & Girard. R. (361) 



361. Gila affinis Abbott. R. (362) 



362. Gila gracilis Baird & Girard. R. (363) 



363. GUa emorii Baird & Girard. R. (364) 



364. Gila nacrea Cope. R. (365) 



365. Gila semiunda Cope &■ Yarrow. R. (366) 



97.— PHOXINUS3 Agassiz. (102, 103) 

 $ Clino8tomu8 Girard. 



366. PhosdnuB elongatus Kirtland. Vn. (367) 



367. Phoxinus vandoisulus Cuv. «fe Val. Ve. (368) 



368. Phoxinus estor Jordan «fe Bray ton. Vs. (369) 



369. Phoxinus funduloides Girard. Ve. (370) 



$ Tigoma Girard. 



370. Phoxinus hydrophlox Cope. R. (371) 



371. Phoxinus teenia Cope. R. (372) 



372. Phoxinus montanus Cope. R. (373) 



373. Phoxinus humboldti Girard. R. (374) 



iThe typo of Pogonichthys {Symmetrurus) argyrioms is a young specimen of Pogonich- 

 thys macrolepidotus. 



-The chief character in which the single known example of P. rapax differs from P. 

 oregonensis is in the small size of the scales before the dorsal fin, there being 49 in P. 

 rapax and about 42 in P. oregonensis. 



•■'The character of the imperfection of the lateral line, which alone distinguishes 

 Phoxinus from Squalius, as understood in the Synopsis, is of such slight importance 

 and subject to such variations that I think best to merge the two groups in one. 

 The name Phoxinus seems to have priority. 



