313 



Cottus, Observations on the g-enus, and 

 descriptions of two new species, by 

 Theodore Giil, 40. ^ , j 



Crassatella Uneata, Shumard, 201. 

 , (0 parvula, Shumard, 202. 



Crcpidula, 105. 



Cretaceous fossils from Texas, 188; 

 cretaceous and carboniferous rocks of 

 Texas, 86 ; strata in Texas, section 

 of, 89. 



Crinoids from the carboniferous and 



lower Silurian deposits of the West, 185. 



GrYYttoaon jwlygonius, Gould, .35. 



— subj-adiatus, Gould, 35. 



Crjrptomya tru7icata, Gould, 24. 



Crystals, quartz, amethystine, from 

 Uruguay, (iO. 



Cucullasa millestriata, Shumard, 202. 



Cyclolella .' pulchella, L. W. Bailey, 168. 



Cyhchna miiinscula, Shumard, 195. 



secnUna, Shumard, 195. 



striatdla, Shumard, 194. 



Cymatopleura .' campijldiscus, Eailey, 



Cymbella gibba, Bailey, 168. 



Cypricardella quadrata, White & Whit- 

 field, 300. 



Cypricardia .? rigida, White & Whit- 

 tield,.300. 



Cyprina Laphami, Shumard, 204. 



Cysticercus, immature tape-worm found 

 in the muscles and brain of a man. 

 Prof. J. Wyman on, 146. 



Damalichthys vacca, 127. 



Datholite, Massive, in the mines of Lake 

 superior. Dr. A. A. Hayes on, 62 ; 

 analysis of, 63; previously described 

 in Silliman's Journal, 205. 



De Koninck library in Museum of Comp. 

 Zoology, Cambridge, Catalogue of, 

 presented, 185. 



Diatomaces, List of, collected in the 

 Para and Amazon Kiver, during the 

 cruise of the U. S. brig Dolphin. 166 ; 

 note on cleaning, by Arthur Mi Ed- 

 wards, 253 ; photographs of, and form 

 of marks on, 255. 



Dicladia .' mamilana, Bailey, 164. 



Diloma nana, Gould, 18. 

 — verrnca, Gould, 18. 



Dosytheus Tejoniensis, Norton, 154. 

 Double pig, partially, 103. 

 Duukeria suturalis, Gould, 280. 



ECHixoDERMS, Homologies of. Prof. L. 



Agassiz on, 235. 

 Edmondia Burlingtonensis, White & 



Whitfield, .301. 

 Elenchus exigims, Gould, 18. 



-; -ocellatus, Gould, 18. 



Embiotoca Synonymy of, 126. 



argyrosoma, Synonymy of, 



Caryi, Synonymy of, 126 ; 



name altered to Hypsu- 

 rus Caryi, 133. 



Jacksoni, Synonymy of, 



126. 



lateralis. Synonymy of, 126 ; 



name altered to Taenioto- 

 ca lateralis, 1.33. 

 Emphytus apertus, 155. 



(Dolerus) inornatus, 155. 



maculatus, Norton, 157. 



mellipes, 155. 



platycerus, 157. 



recens, 157. 



■ semicornis, 157. 



tarsatus, 157. 



testacetis, Norton, 156. 



— — variamis, Norton, 156. 



English naturalists, Kemonstrances 

 against misrepresentations of. in re- 

 gard to the specific distinctness of 

 faunaj far removed from each other, 98. 

 Erviha bisculpta, Gould, 28. 



concentrica, Gould, 281. 



livida, Gould, 28. 



Estate, Donation of, to the Society, by 

 Dr. W. J. Walker, 146. ^ 



Ethaha capWata, Gould, 17. 



rufula, Gould, 17. 



Eunotia anisodon, Bailey, 164. 

 Euomphalus ammon, White & Whit- 

 field, .301. 

 Eutropia modesta, Gould, 18. 

 Evans, Dr. John, Decease of; resolu- 

 tions passed by the Society on, 177. 

 Eye of horse-mackerel, 285. 



Ditylum, Bailey, 163 



iinequale, Bailey, 163. 



— ^^«>o«M/tt, Bailey, 163. 



Dolerus sericeus, 154. 



(Tenthredo) unicolor, 154. 



Domeykite, from the vicinity of Porta^-e 

 Lake, Lake Superior, 258. " 



Donation of estate to the Society, by 

 Dr. William J. Walker, 146 ; of skins 

 and skulls of North American mam- 

 mals, 121. 



Dosytheus abdomtnalis, Norton, 153. 

 var. albifrons, 152. 



apricus, 152. 



aprilis, Norton, 152. 



- arvensis, 152. 



bicolor, L53. 



collaris, 152. 



maculicoUis, 'Sortow, 153. 



similis. Norton, 153. ' 



Fauna, Acalephan, of the southern 

 coast of Massachusetts, A.E.K. Agas- 

 siz on, 224; primordial in Canada, 97 ; 

 objections to the use of the expres- 

 sion " primordial," by Prof. L. Ag- 

 assiz, 59. ^ 



Faunae, distinct fossil, contemporane- 

 ous, 58. 



Favosites, 306. 



^\"(f ^^y"^"^"s) granosus, Shumard, 

 A^Fishes of the Blenny family, and genus 

 Pholis, called Shanny in Europe, Res- 

 piration of. Dr. S. Kneeland, Jr. on, 



Fossil corals at Pteadville, Mass., 209. 



lossils, Cretaceous, from Texas, B. F. 

 Shumard on, 188 ; from near Burling- 

 ton, Iowa, 289; forms at Braintrel, 

 Mass., Albert Ordway on, 5 ; primor- 

 dial, localities in the United States, 



