INSTITUTE OF SCIENCE, PHILADELPHIA. 



Cochliolepis 418, 419. 



nautilifortnis 419. 



parasitica 346, 347, 418. 



striata 419. 

 Cochlis 362. 

 Cochlolepas. See Amaltliea 



359. 



Biillii 349. 

 Collonia 386. 



cliipolana 387. 



claibornensis 38S. 



elegantula j^d, 387, 38S. 



radiata 387. 

 Columbella 242. 



styliola 242. 

 Cominella 236. 

 Compsopleura 



trinodosa 277. 

 Conradia 386. 

 Conus 



adversarius 211, 220. 



Agassizii 211. 



planiceps 219. 

 Coralliophila 



lepidota 212. 

 Corbicula 337. 



densata 2n, 214. 

 Corbiila 



Barrattiana 211. 



contracta 211, 214. 



iDEequalis 211, 

 Crassatella 



Gibbesii 210. 

 Crepidulajj^, 355. 



aculeata 213,354, 357. 



adunca 355, 358. 



convexa 213, 215, 355, 



357- 

 coniuarietis 354. 

 cornucopia 356. 

 costata 357. 

 cymbseformis 356, 357. 

 densata 356. 

 dorsata 358. 

 dumosa 354. 

 fornicata 213, 215, 354, 



355. 356, 357- 

 glauca 356, 357. 

 grandis 358. 

 lamina 358. 

 lingulata 357. 



Crepidiila, cont'd. 



lirata 35 j. 



pileum 358. 



plana 213, 2r5, 355. ij"?- 



ponderosa t56, 353. 



prserupta 358. 



princeps 358. 



protea 358. 



recurviro-;tra 356. 



rostral is 358. 



rostrata 356. 



spinosa 357. 



unguiformis 354, 355, 

 358. 



virginica 356. 

 Creseis 4^0, 432. 



acicula 432. 



acus 432. 



bicostata 430. 



clava 432. 



ebla 430. 



hastata 430, 432. 



nimba 430. 



recta 432. 



simplex 430. 

 Crucibuhim j^c?, 352, 358. 



antiqiuini 34.8. 



auricula j^9, 350, 351. 



chipolanuni 349. 



constriclum 350. 



costatum 349, 350. 



dumosum 350. 



grande 351. 



imbricatum 34g, 350. 



inerme 351. 



multilineatum 351. 



piliferuni 351. 



spinosum 349, 350, 351, 



352- 



striatum 213, 351. 



subsutum 351. 



verrucosum 349. 

 Crypta. See Crepidula 354. 

 Cryptonatica 362, 366. 

 Cuma 319. 

 Cumingia 



tellinoides 2ti, 214. 

 Cuvierina 431. 432. 



columella 431. 

 Cyclogyra 331. 



tipa 332. 



Cyclostoma 333. 

 Cyclostrema 3S6, 390, 4.20. 



bicarinatum 315, 410. 



chipolanum 420. 

 Cymia 205. 

 Cyprjea 



annulus 226. 

 Cytherea 



convexa 211, 214. 



Sayana 211, 214. 

 Daphnella 



elata 2rr, 224. 

 Delphinula 321. 



bella 411. 



concava 346. 



conscionaria 411. 



depressa 347, 412. 



globulus 322. 



lipara 346, 347. 



Iyra322. 



marginata 386. 



naticoides 411. 



nitens 400. 



nitida 307. 



obliquistriata 345, 347. 



plana 331, 344. 



quadricostata 322. 



solariella 408. 



solarioides 407. 



trochiformis 405, 411. 

 Dentalium 436, 437, 438. 



agile 441. 



alternatum 438. 



annulatum 438. 



anliliarum 211, 440. 



arciforme 438. 



asgnm 43S. 



attenuatum 43g, 441. 



bimixtum 438. 



bitubatum 437. 



blandum 438. 



caduloide 442. 



calamus 440. 



callipeplum 442. 



caloosaense 441. 



carolinense 439. 



Danai 437, 439, 440. 



densatum 438. 



dentale 439, 441. 



dispanle 440. 



duodecenaria 439. 



463 



