FAUNAL SUMMARY. 



697 



245. M. rotelliforme, M, c 



246. M. mushbachanum, L, c 



247. M. aplanatum, L, c 



248. Eutomoceras laubii, M, c 



249. Longobardites nevadanus, M, c 



250. Celtites halli, M, c 



251. Tirolites foliaceus, U, c 



252. Ceratites humboldtensis, M, c 



253. C. blakii, M, c 



254. Acrochordiceras hyatti, M, c 



255. Clionites fairbanksi, U, c 



256. C. robustus, U, c 



257. Trachyceras lecontii, TJ, c 



258. T. meeki, M, c 



259. Columbites parisianus, L, c 



260. Sagenites herbrichi, TJ, c 



261. Tropites subbullatus, U, c 



262. Discotropites sandlingerensis, TJ, 



263. Paratropites sellai, TJ, c 



264. Arcestes andersoni, TJ, c 



265. A. pacificus, TJ, c 



266. Joannites nevadanus, M, c 



267. Ussuria waageni, L, c 

 404. Atractites phillippi, c 



Phyllopoda. 

 4. Estheria ovata, a, b 



Insecta. 

 Mormolucoides articulatus, a 

 .Acanthichnus, 10 species, a 

 Bifurculapes, 5 species, a 

 Conopsoides, 2 species, a 

 Copeza, 4 species, a 

 Hexapodichnus, 2 species, a 



Jurassic Faunas. 

 The following provinces are recognized : 

 {a) Gulf Region (Mexico to Texas). 

 {h) Rocky Mountain (Wyoming, Dakota, etc.). 

 (c) Northern Pacific (California, Idaho, Utah, Nevada, to 

 Alaska). 



Brachiopoda. 



284. Rhynchonella myrina, b, c 

 286. R. gnathophora, c 



Pelecypoda. 

 243. Pseudomonotis curta, TJ, b 

 259. Ostrea strigilecula, b 



285. Gryphaea mexicana, TJ, a 

 2,26. Trigonia quadrangularis, TJ, b 



388. Pecten bellistriatus, TJ, b 



389. P. extenuatus, TJ, b 



390. P. pertenuistriatus, b 



442. Pleuromya subcompressa, b, c 



443. P. inconstans, TJ, a 

 490. Arctica coteroi, TJ, a 

 528. Tancredia bulbosa, TJ, b 



Gastropoda. 



334. Nerita nodilirata, TJ, a 



335. N. nebrascensis, b 

 372. Natica williamsi, TJ, a 



399. Valvata scabrida, TJ, b 



402. Viviparus gilli, TJ, b 



472. Nerinea goodelli, TJ, a 



475. Nerinella stantoni, TJ, a 



676. Limnsea altivuncula, TJ, a 



677. L. consortis, TJ, a 



684. Planorbis veternus, TJ, b 



Cephalopoda. 



268. Phylloceras apenninicum, TJ, a 



269. P. mazapilense, TJ, a 



277. Haploceras fialar, TJ, a 



278. H. transatlanticum, TJ, a 



279. H. zacatecanum, TJ, a 



280. H. ordonezi, TJ, a 



281. H. costatum, TJ, a 



282. Eurynoticeras zitteli, TJ, a 



306. Coroniceras claytoni, L, c 



307. Arnioceras nevadanum, L, c 



308. A. humboldti, L, c 



309. Oppelia fallax, TJ, a 



