ROT. — SOL.] 



GASTEROPODA. 



425 



praevium, Whitfield, 1889, Bull. Am. 

 Mus. Nat. Hist., vol. 2, p. 52, Calcifer- 

 ous Gr. 



rotuliforme, Meek, 1870, Proc. Acad. Nat. 

 Sci., p. 61, and U. S. Geo. Sur. 40th 

 Parallel, vol. 4, p. 18, Calciferous Gr. 



rotuloides, Hall, 1847, (Pleurotomaria rot- 

 uloides,) Pal.N. Y., vol. 1, p. 173, Tren- 

 ton Gr. 



stamineum, Hall, 1847, Pal. N. Y., vol. 

 1, p. 29, Chazy Gr. 



striatum, Emmons, 1842, (Maclurea stri- 

 ata,) Geo. Rep. N. Y., p. 312, and Pal. 

 N. Y., vol. 1, p. 28, Chazy Gr. 



Fig. 709.— Raphistoma striatum. 



subplanum, Shumard, 1863, Trans. St. 

 Louis Acad. Sci., vol. 2, p. 106, Calcifer- 

 ous Gr. 



subtilstriatum, Hall, 1847, (Pleurotomaria 

 subtilstriata,) Pal. N. Y., vol. 1, p. 172, 

 Trenton Gr. 



trochiscum, Meek, 1870, (Euomphalus 

 trochiscus,) Proc. Acad. Nat, Sci., p. 61, 

 and Geo. Sur. W. 100th Mer., vol. 4, p. 

 77, Calciferous or Trenton Gr. 

 Rotella, Lamarck, 1822,Hist. Nat. Anim. sans 

 Vert., vol. 7, p. 6. [Ety. 

 diminutive of rota, a 

 wheel.] Lenticular, pol- 

 ished ; spire depressed ; 

 Fig. 710. -Rotelia base callous, lingual 

 vestlaria. teeth 13; uncini, nu- 



merous, subequal. Type R. vestiaria. 



verruculifera, White, 1882, Rep. Invert. 

 Foss., New Mexico, p. xxxi, Coal 

 Meas. 

 Scevogyka, AVhitfield, 1878, Ann. Rep. 

 Geo. Sur. Wis., p. 61, and Geo. Wis., 

 vol. 4, p. 198. [Ety. scsevus, toward 

 the left; gurus, circle.] Sinistral, spire 

 elevated, volutions rounded ; umbilicus 

 open, broad, no callus; peristome en- 

 tire, uniting with the volution on the 

 inner side and spreading externally. 

 Type S. swezeyi. 



elevata, Whitfield, 1878, Ann. Rep. Geo. 

 Sur. Wis., p. 62, and Geo. Wis., vol. 4, 

 p. 199, Low. Mag. Gr. 



obliqua. Whitfield, 1878, Ann. Rep. Geo. 

 Sur. Wis., p. 63, and Geo. Wis., vol. 4, p. 

 199, Low. Mag. Gr. 



swezeyi, Whitfield, 1878, Ann. Rep. Geo. 

 Sur. Wis., p. 62, and Geo. Wis., vol. 4, 

 p. 198, Low. Mag. Gr. 

 Scalites, Emmons, 1842, Geo. Rep. N. Y., 

 p. 312. [Ety. seala, staircase.] Tur- 

 binate, whorls flat above, turrited, pro- 



Fig. 711.— Scalites an- 

 gulatus. 



duced below ; no umbilicus ; form 

 elongate. Type S. angulatus. 

 angulatus, Emmons, 

 1842, Geo. Rep. 

 N. Y., p. 312, and 

 Pal. N. Y., vol. 1, 

 p. 27, Chazy Gr. 



Scoliostoma, Braun, 

 1838, Neues Jahr. 

 Min. Geo. Geol. Pe- 

 tref., p. 298. [Ety. 

 skolios, curved; 

 stoma, mouth.] 

 Small, upper part 

 pupiform; aperture 

 extended, curved 

 outward. Type S. 

 dannenbergi. 

 americana, Walcott, 1885, Monogr. U. S. 

 Geo. Sur., vol. 8, p. 195, Low. De- 

 vonian. 



Solarium, Lamarck, 1801, Syst. An. sans Vert. 

 Not Palaeozoic. 

 leai, one of Troost's catalogue names. 



Solbniscus, Meek & Worthen, 1860, Proc. 

 Acad. Nat. Sci. Phil., p. 467. [Ety. 

 soleniskos, little channel or gutter.] Fusi- 

 form, pointed ; whorls nearly flat, last 

 one contracted and produced below 

 into a straight canal ; surface smooth 

 or obscurely marked by lines of growth ; 

 aperture narrow ; outer lip thin, en- 

 tire; inner lip thickened and bearing 

 a more or less distinct revolving fold ; 

 columella straight, imperforate. Type 



5. typicus. 



brevis, White, 1882, Rep. Invert. Foss., 



New Mex., p. xxvii, Coal Meas. 

 fusiformis, Hall, 1858, (Macrocheilus fusi- 



forme,) Geol. of Iowa, p. 718, Coal 



Meas. 

 hallanus, Geinitz, 1866, (Macrocheilus 



hallanum,) Carb. und Dyas in Neb. p. 



6, Coal Meas. 

 helicoides, Sowerby, 



1829, (Ampullaria 

 helicoides,) Min. 

 Conch., vol. 6, p. 40, 

 Coal Meas. 



klipparti, Meek, 1872, 

 (Macrocheilus klip- 

 parti,) Proc. Acad. 

 Nat. Sci., vol. 24, p. 

 328, and Ohio Pal., 

 vol. 2, p. 346, Low. 

 Coal Meas. 



newberryi, Stevens, 

 1858, (Loxonema 

 newberryi,) Am. 

 Jour. Sci. and Arts, 

 2d ser., vol. 25, p. 

 259, and Geo. Sur. 

 111., vol. 5, p. 594, 

 Coal. Meas. r~^| 



paludiniformis, Hall, 

 1858, (Macrocheilus 

 paludiniformis,) Geo. 

 of Iowa, p. 719, Coal Meas. 

 planus, White, syn. for S. newberryi. 



Fig. 712.— Soleniscus 

 klipparti. 



