16 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



208. Pogonichthys macrolepidotus (Ayres) J. & G. 

 27134. Sacramento River, California. 



209. Mylochilus caurinus (Rich.) Ag. 



27271. Puget Sound. I 27342. Frazer's Biver, British Colombia. 



27283. Columbia River. I 



210. Mylopharodon conocephalus Ayres. 



27245. Sacramento River, California. 



CATOSTOMID^. 



211. Chasmistes liorus Jor. & Gilb. 



27361. Utah Lake, Utah. 



212. Catostomus fecundus Cope & Yarrow. 

 27352. Utah Lake, Utah. 



213. Catostomus ardens Jor. & Gilb. 



(Types.) 

 27363. Utah Lake, Utah. 



214. Catostomus occidentalis Ayres. 



27131. Sacramento River, California. 



215. Catostomus macrochilus Grd. 



27290. Columbia River. 



SILURID^. 



216. Amiurus catus (L.) Gill. 



27144. Sacramento River, California (introduced). 



MUR^NID^. 



217. Mureena mordax Ayres. 



24991. Wilmington, California. I 25022. Santa Cattilina Island, California. 



25004. " " I 26S01. San Diego, California. 



ACIPENSERID^. 



218. Acipenser transmontanus Rich. 



27065. Sacramento River, California. | 27269. Prazer's River, British Columbia. 



219. Acipenser medirostris Ayres. 



27223. San Franci.sco, California. 



CHIM^RID^. 



220. Chimaera collisei Bennett. 



26976. Monterey, California. i 27311. Puget Sound 



27226. San Francisco, California. I 



MYLIOBATID^. 



221. Myliobatis californicus Gill.' 



24815. San Diego, California. 

 26781. " " 



26840. San Pedro, California. 



26892. Santa Barbar.i, California. 

 27256. San Francisco, California. 



