342 PALEOZOIC TIME. 



(b.) Lamellibranchs. — Fig. 651, Macrodon carbonarius M., Upper Coal-measures of 

 Kentucky; Fig. 652, A/lorisma subcuneata M. & H., Kansas; Aviculopecten rectilate- 

 raria Cox, Upper and Lower Coal-measures, Avicula ( Gervillia) longa M., Nuculana 

 bellistriata M., Cardiomorpha Missouriensis Shum., Solenomya radiata, Mycdina per- 

 attenuata M. & W., M. recui-virostris M. & W., Schizodus amplus M. & W., all from 

 Illinois; Astartella, etc. Entolium aviculatum M., Kansas; Pinna peracuta Shum., 

 Missouri, Kansas; Lima retifera Shum., Kansas; Mytilus [Modiola (?)] Shaw7iee7isis 

 Shum., Kansas; species of Monopteria, Pseudomonotis, Placimopsis, etc.; Modiola Wy- 

 omingensis Lea, Wyoming, Pa.; Naiadites (Anthi'acoptera) carbonaria Dn., Nova 

 Scotia; N. elongata Dn., Nova Scotia; N. levis Dn., Nova Scotia. 



(c. ) Gasteropods. — Fig. 654, Bellerophon carbonarius Cox (often referred to B. TJrii 

 Fleming), Upper Coal, Kentucky; Fig. 653, Pleurotomaria tabulata Con.; Fig. 655, P. 

 sphwrulata Con.; P. carbonaria N. & P., P. Grayvillensis N. & P. ; Fig. 656, Macro- 

 cheilus (?) jusi/ai'mis H., M. Newberryi Stevens, M. ventricosus H., Illinois; Murchi- 

 sonia minima Swallow, Missouri: Fig. 657, Dentalium obsoletuni H., D. Meekianum 

 Gem., from Nebraska and Illinois; Chiton carbonarius Stevens, Euomphalus subrugosus 

 M. & W., Loxonema semicostatum M., Aclis robusta Stevens, Streirtacis Whitfieldi M., 

 all from Illinois; Naticopsis sp. Also the Land-snail (Helix family), Pupa vetusta Dn. 

 (Fig. 658), half an inch long, from the Coal-measures of the Joggins, Nova Scotia; 

 Fig. 659, Pupa Vermilionensis Bradley, from Vermilion County, Illinois, in a concre- 

 tionary limestone ; Fig. 660, Dawsonella Meeki Bradley, from same locality. 



(d. ) Cephalojwds. — Nautilus Missouriensis Shum., Lower Coal-measures; N. plani- 

 volvus Shum., Upper Coal-measures; Goniatites politus Shum., near Middle Coal-ineas- 

 ures; G. parvus Shum., Upper Coal-measures; Orthoceras aculeatum Swallow, Upper 

 Coal-measures; 0. moniliforme Swallow, Upper Coal-measures, — all from Missouri: 

 0. Rushense McChesney, Indiana and Illinois; Nautilus latus M. & W., N. Winslowi 

 M. & W., iV. Lasalknsis M. & W., Goniatites compactus M. & W., all from Illinois. 



4. Articulates. — («. ) Worms. — Fig. 661, Spirorbis carbonarius Dn. {Micro- 

 cJwnchus carbonarius Murch., Gyromyces ammonis Giipp), attached to leaves and stems 

 of plants, in the measures of all the Coal-fields; Pakeocampa anthrax M. & W., Morris, 

 Illinois. 



(b.) Crustaceans. — Phyllopods : Dithyrocaris carbonarius M. & W., Ceratiocaris sinu- 

 atusM. & W., both from Illinois. Trilobites: Phillipsia Missouriensis, P. major, P. 

 CUftonensis, — all described by Shumard, — from the Upper Coal-measures of Missouri; 

 P. scitula M. & W., common in Illinois and Indiana. Limulkls: Fig. 662, Euproops 

 Dana M. & W., Morris, Illinois. Eurypterids : Diphstylus Dawsoni S., Nova Scotia; 

 Eurypterus Mazonensis M. & W., from Morris, Illinois. Ostracoids : Beyrichia Americana 

 Shum., from Missouri; Leaia tricarinata M. & W., from Upper Coal-measures, 

 Illinois. Tetradecapods : Fig. 663, Acanthotelson Stimpsoni M. & W., Morris, Illinois; 

 A. Eveni M. & W., Morris, Illinois. Decapods : Fig. 664, Paheocaris tyjius M. & W., 

 Morris, Illinois; Fig. 665, Anthrapaltemon gracilis M. & VV., Morris, Illinois. 



(c. ) Myriapods. — Fig. 666, Xylobius Sigillariw Dn., from the Coal-measures of Nova 

 Scotia, and related to the modern lulus; a, organ (labrum?) pertaining to the mouth, 

 with its palpus, enlarged: the species must have burrowed into the interior of the Sigil- 

 laria trunk in which it was found (Dawson); X similis Scud., ibid.; X.fractus Scud., 

 ibid.; A'. Dawsoni Scud., ibid.; Archiulus xylobioides Scud., ibid.; Fig. 667, Eupho. 

 beria armigera M. & W., Morris, Illinois; E. major M. & W., Morris, Illinois; An- 

 thracerpes typusM. & W., Morris, Illinois. 



(d.) Spiders. — Fig. 668, Eoscmpius carbonarius M. & W., Morris, Illinois; a. Comb- 

 like organ; Mazimia Woodiana M. & W., Morris, Illinois; Architarbus rotundatus Scud, 

 allied to the Phalangida, Morris, Illinois ; Fig. 668 A, Arthrolycosa antiquus Harger, a 

 spider, from Morris, Illinois, allied to the Protolycosa of Rcemer in having a jointed 

 abdomen and in other points; the generic name, signifying a. jointed Lycosa or Taran- 

 tula, alludes to this Paleozoic feature. 



(e.) Insects. — 1. Orthopters, related to the Cockroach (Blatta). Fig. 671, Blattina 

 venusta Lsqx., from the Coal-measures, at Frog Bayou, Arkansas; a similar wing, 



