XX TABLE OF CONTENTS. 
Class TV. I’isccs— contimipd. Page. 
Snl)class Physostonii. 
Ojder L. Eventognatlii. 
Family 31. Cypriiiidte. 
95. Semotilns Eaf 220 
Semotilus 221 
347 (b). corporalis Mitch 221 
348. thoreanianxis Jor 221 
^ Leucosomus Heck 222 
349. hill laris Raf 222 
9G. Symiuetrunis Jor 222 
350. argyriosus Grd 222 
97. Pogoiiichthys Grd 223 
351. niacrolepidotns Ayres 223 
97 (ft). Stypodoii Garm 223 
352. signifer Garm 224 
98. Mylochilns Ag 224 
353. caurinus Rich 224 
99. Mylopharodou Ayres 225 
354. conocephalirs B. & G 225 
100. Ptychochilus Ag 225 
3135. oregouensis Rich 220 
356. rapas Grd 226 
357. harfordi J. &G : 226 
358. Incins Grd 227 
101. Gila B.&G 227 
359. elegaiis B. & G 227 
360. robiista B & G 228 
361. grahami B. «feG 228 
362. affinis Abbott 229 
363. gracilis B. »& G 229 
364. emorii B. & G...I 229 
365. nacrea B. & G 230 
366. semimida Cope & Yarrow 230 
102. Squaliiis Bon 230 
^ Clmosiomus 231 
367. elongatus Kirt 232 
.368. vaudoisulus C. &V - 232 
369. estor Jor. & Brayt 232 
370. fundnloides Grd 233 
§ TUjoma Grd 233 
371. hydrophlox Cope 233 
372. tienia Cope 234 
373. montainis Cope 234 
374. hnmboldti Grd 234 
375. crnorens J. & G 234 
376. ardesiaciisCope 235 
377. pandora Cope 235 
378. margaritus Cope 235 
379. gnla Cope 236 
380. pnlcher Grd 236 
381. egrogins Grd 236 
382. lineatns Gid 236 
383. gracilis Grd 237 
384. conforuiis B. & G 237 
