DALL: MOLLUSCA AND BRACHIOPODA. 



485 



Protocardia, 414, 415. 



panamensis, 415. 

 Psammacoma, 421. 

 Psammotreta, 422. 

 Pseudaniusium, 402, 403, 404, 405. 

 Pseudaxinea, 399. 

 Pseudotoma, 256. 

 Pthonia, 366. 

 Ptychatractus, 299. 



californicus, 299. 



ligatus, 300. 



occidentalis, 300. 

 Puncturella, 352, 353. 



asturiana, 353. 



expansa, 353. 

 Purpura, 306, 311. (See Thais.) 

 Pyrula anomala, 300. 



Radula pygmaka, 408. 

 Rhabdus, 359. 

 Rheda, 230. 

 Rictaxis, 236. 

 Rimula expansa, 353. 

 Rochfortia, 413. 



mabillei, 413. 



rochebrunei, 414. 

 Rouaultia, 258. 

 Ryderia, 431. 



Sabatia, 240. 

 Sabatina, 240, 241. 

 Sanguinolaria rosea, 379. 

 Saxicava, 424. 



antarctica, 424. 



arctica, 424. 



chilensis, 424. 



frigida, 424. 



lebruni, 424. 



mollis, 424. 



rugosa, 424. 

 Scala, 315, 317. 



ftrmininna, 315. 



mitclielli, 317. 

 Scaphander, 238, 239, 240, 241. 



cylindrellus, 239, 240. 



decnpitatus, 240. 



gracilis, 239. 



intcrruptus, 239. 



lignarius, 241. 



planeticus, 241. 

 Scapharca, 397. 

 Scaphella, 297, 298. 



benthalis, 298. 

 Seguenzia, 3?5, 326. 



monocingulata, 326. 



occideiitdlig, 325. 



stephnnica, 325. 

 Sigaretopsis, 334. 



Silenia sarsii, 430. 

 Silia, 319. 

 Silicula, 391, 392. 



fragilis, 391. 

 Solariella, 349, 351, 352. 



ceratophora, 350. 



equatorialis, 351. 



galapagana, 350. 



nuda, 349. 

 Solarium, 327. 

 Solemya, 361, 363, .364, 365, 366. 



agassizii, 364, 365, 366. 



australis, 361, 362, 363, 364. 



borealis, 363, 364. 



grandis, 364. 



japonica, 364. 



johnsoni, 364, 365. 



macrodactyla, 363, 364, 365, 366. 



mediterranea, 362, 363, 364. 



occidentalis, 364. 



panamemis, 363, 364, 366. 



parkinsoni, 362, 363, 364. 



patagonica, 363, 364. 



protexta, 364. 



pusilla, 364. 



radiaU, 366. 



solen, 362, 363, 364. 



valvulus, 364, 366. 



velum, 363, 364. 



ventricosa, 364. 

 Solenella, 383. 



norrisii, 383. 

 Solenosteira, 300. 



anomala, 300. 



elegans, 300. 

 Solidula, 236. 

 Spaniodon, 412. 

 Speo bifasciatus, 236. 

 Sphenia subequalis, 422. 

 Spineoterebra, 246, 247, 248, 250. 

 Spinula, 377. 

 Steiraxis, 257, 273. 



auiaca, 273. 

 Sthenorhytis stearnsii, 317. 

 Stigmaulax, 332. 

 Stilifer, 317, 318. 



bathymetrae, 318. 



thoinasiae, 318. 

 Strioterebrum, 246, 248, 250, 251, 252, 253. 

 Strombina, 310. 



edtntula, 310. 



turrita, 310. 

 Subula, 245, 249. 



Surcula, 256, 261. 262, 263, 264, 272. 

 Surculina, 260, 291, 292. 



W.ir»</a, 261. 

 Surgula, 256. 



