690 HISTORICAL GEOLOGY. 



For Reports on American coal plants with figures, see Indiana Geol. Bep. for 1883, by 

 Lesquereux ; Illinois Geol. Eep., vols. ii. and iv., by Lesquereux ; Ohio Pal., vols. i. and 

 ii., by Newberry; Pennsijlvania Geol. Eep., No. P, by Lesquereux, 1st vol. text, 2d vol. 

 plates, 3d vol. text and plates, 1880-84. 



On the Permian flora, see Fontaine and White, Pa. Geol. Bep., No. PP, 1880. 



Animals. — 1. Rhizopods. — Fig. 1069, Fusulina cylindricaoi Fisher, isaRussian spe- 

 cies, to which the American specimens in part are referred. F. elongata Shumard, F. rohusta, 

 F. ventricnsa, and F. gracilis of Meek, are supposed to be probably varieties of it. Loftu- 

 sia Columbiana G. M. Dawson, Q. J. G. S., xxxv., 74. Dentalina priscilla Dn., from Nova 

 Scotia, consists of a single series of cells. 



2. Actinozoans. — Syringopora multattenuata McCh., Campophyllum torquium 

 Ow., etc. 



3. Echinoderms. — Crinoids, of the genera Poteriocrinus, Actinocrinus, Cyathocrinus, 

 Zeacrinus, Delocrinus, Scaphiocrinus, Eupachycrinus, Agassizocrinus, Acrocmius, etc. 



4. Molluscoids. — Fig. 1072, Spirifer cameratus Mort., Lower and Upper Coal-meas- 

 ures, in Ohio, Ky., Ind., 111., Mo., Utah, etc. ; 1070, Productns Nehrascensis Ow., 111., Kan., 

 N. Mex. ; 1071, Chonetes mesolohus N. & P., a common species ; 1073, Seminula subtilita 

 Hall, common in the Coal-measures ; Spiriferina Kentuckensis Upper Coal-measures, 111., 

 Ky., Mo., and near Pecos village, N. Mex.; Spirifer lineatus Phill., Meekella striatocostata 

 Cox, 111., Mo., Iowa; Ortliis Pecosi Marcou ; Dielasma {Terrehratula) bovidens Mort.; 

 Derbya (Streptorhynchus) crassa M. & H. ; Waldheimia ? {Cryptacanthia) compacta 

 W. & St. John. The following first appeared in the Subcarboniferous, and are continued 

 into the Carboniferous : Productus punctatus (Fig. 1013, page 642), P. cora, P. muricatiis, 

 P. semireticulatus (Fig. 423, page 427), Sjnrifer lineatus. 



5. Mollusks. — Lamellibranchs. — Fig. 1074, Macrodon carbonarius M., Upper Coal- 

 measures, Ky. ; 1075, Allorisma subcuneata M. & H., Kan. ; Aviculopecten rectilaterarius 

 Cox, Upper and Lower, Avicula {Gervillia) longa M., Nuculana bellistriata M., Cardio- 

 morpha 3Iissouriensis Shum., Solenomya radiata M. & W., Myalina perattenuata M. & H., 

 M. recurvirostris M. & W., Schisodus amjjlus M. & W., all from 111. Entolium avicida 

 Swallow, Kan. ; Pinna peracuta Shum., Mo., Kan. ; Lima retifera Shum., Kan. ; Mytilus 

 [^Modiola (?)] Shawneensis Shum., Kan. ; 3Ionodon, species of Monopteria, Pseudomo- 

 notis, Placunopsis, etc.; Modiola Wyomitigensis I^ea, Wyoming, Pa.; Anthracomya {Naiad- 

 ites) carbonaria Dn., N. Scotia; A. elongata Dn., N. Scotia; A. loivis Dn., N. Scotia. 



6. Gastropods. — Fig. 1077, Bellerophon carbonarius Cox (often referred to B. Urii 

 Fleming), Upper Coal, Ky. ; 1076, Pleurotomaria tabulata Con. ; 1078, P. sphcerulata Con. ; 

 P. carbonaria N. &P., P. Grayvillensis N. & P. ; 1079, Macrocheilus {?) fusiformisH., M. 

 Newberryi Stevens, 31. ventricosus H., Iowa, 3Iurchisonia minima Swallow, Mo. ; 1080, 

 Dentalium sublcBve H., D. 3Ieekanum Geiu., Neb. and 111. ; Straparollus pernodosus 

 M. & W., 111. ; Chiton carbonarius Stevens, Straparollus s^ibrugosris M. & W., 111., 

 Loxonema semicostatum M., Aclis robusta Stevens, Streptaxis Whitfieldi M., all from 

 Illinois ; Naticopsis. Also the Land-snails (Helix family). Fig. 1081, Pupa vetusta Dn., 

 half an inch long. Coal-measures, Joggins, N. Scotia ; 1082, Pupa Vermilionensis Bradley, 

 Vermilion County, 111., in a concretionary limestone ; 1083, Dawsonella Meeki Bradley, 

 same locality. 



For Cephalopods of the Carboniferous, see papers by Shumard, McChesney, Swallow, 

 Hall, Hall and Whitfield, and the Geological Reports of Illinois (Meek and Worthen), 

 Missouri (Swallow), Texas (Hyatt). 



Some of the Nautiloids of the Carboniferous, part of them new species, as named and 

 figured by Hyatt in the second Annual Texas Geological Report are : Temnochilus con- 

 chiferum, Tex. ; T. Forbesanum, Tex. {Nautilus F. of McChesney); T. latum, Meek and 

 Worthen, Kan. ; T. depressum, Kan. ; T. crassum, Kan. ; Metacoceras cavatiforme, Kansas 



