INDEX. 



523 



Planorbis — Continued. 



cainj)auulatus, 492. 



dcHfctus, 494. 



dilatatus, 498. 



clevatus, 497. 



exac-iitus, 495. 



hirsutus, 493. 



lentus, 490. 



parvus, 497. 



tiivolvis, 488. 

 Pleurotonia liicariiiata, 349. 



decassatu, 3.')4. 



plicata, 3.1 0. 

 Polycera Les.sonii, 226. 

 Pomatiopsis lapidaria, 295, 

 Pupa ariniffra, 437. 



hadia, 4-33. 



contracta, 438. 



cortifaria, 439. 



curvidens, 434. 



decora, 435. 



exigaa, 466. 



faliax, 436. 



Hoppii, 433. 



viUium, 441. 



modesta, 442. 



mu.scoiuiii, 433. 



pentodou, 434. 



rupicula, 439. 



Simplex, 444. 

 Purpura lapillus, 360. 

 Psyche globulosa, 504. 

 Pynuais striatnlii, 333. 

 Pyrala. See Busycon. 



R. 



Ranella caudata, 386. 

 liliynchoiiella psittacea, 210. 

 Kissoa aculeus, 299. 



carinata, 301. 



eburnea, 297. 



exarata, 301. 



latior, 299. 



Miglielsi, 301. 



minuta, 298. 



niultilineata, 300. 

 Rissoella eburnea, 297. 



sulcosa, 297. 

 Rostellaria occidentalis, 320. 



• S. 

 Salpa Caboti, 6. 

 Saiiguinolan'a fnsca, 93. 



sard Ida, 95. 

 Saxicava arctica, 86. 



distorta, 87. 



rugosa, 87. 

 Scalaria Gnenbmdica, 314. 



lineata. 312. 



multistriata, 313. 



Novangliie, 311. 

 Scaphander puuctostriatus, 215. 



Scgmcntina armigera, 499. 

 Sigaretus haliotuideus, 337. 

 Skenea planorbis, 296. 



serpuloides, 296. 

 Solccurtus Caribceus, 43. 



dirisus, 44. 



fraridis, 44. 



giitbus, 43. 

 Soleraya Lorealis, 50. 



velum, 48. 

 Solen Americunus, 42. 



ensis, 40. 

 Sphairium occidcntale, 108. 



partumeium, 103. 



rhomboideum, 104. 



securis, 107. 



simile, 101. 



tenue, 107. 



truncatum, 106. 



Vermontanum, 105. 

 Spinalis Flemingii, 505. 



Goiddii, 505. 

 Spirulafragilis, 516. 



Peronii, 516. 

 Succiuea avara, 446. 



obli([ua, 447. 



ovalis, 445. 



Totteniana, 448. 



Tapes fluctuosa, 136. 

 Tebennophorus Carolinensis, 457. 



dorsalis, 460. 

 Tectura alveus, 269. 



testudinalis, 269. 

 Tellina tenera, 97. 



tenta, 96. 

 Terehratula caputserpentis, 208. 



psittacea, 210. 

 Terebratuh'na rapiuserpentis, 208. 

 Teredo cJilorotica, 33. 



dilatata, 32. 



mcgotara, 30. 



navalis, 28. 



Norvagica, 29. 



Thomsonii, 31. 

 Thracia Conradi, 69. 



myopsis, 71. 



truncata, 72. 

 Thyasira Gouldii, 100. 

 Tornatella punctostriata, 224. 

 Trichotropis borealis, 390. 

 Triforis nig rod net as, 323. 

 Tiochus occidentalis, 286. 

 Trophon clathratus, 377. 



muricatus, 379. 



scalariformis, 378. 

 Turbonilla interrupta, 331. 



nivea, 331. 

 Turritella acicula, 319. 



costulata, 318. 



erosa, 317. 



iinpressa, 330. 



