Ixiv 



INDEX. 



Planorbis continued. 



marginatus, iv. 155. 



Nautileus, iv. 152, 163, 28<). 



Nautilus, iv. 152. 



nitidus, iv. 161, 162. 

 planatus, iv. 154. 



purpureus, iv. 147. 



rhombeus, iv. 155, 



siinilis, iv. 147. 



spirorbis, iv. 159. 



tarritus, iv. 144. 



turgidus, iv. 155. 

 _ umhilicatus, iv. 155. 



vortex, iv. 157, 159. 

 PLEUROBRANCHID^, iii. 557. 

 Pjleurobranchus, iii. 557. 



membrnnaceus, iii. 558. 



plumula, iii. 559. 

 Pleurotoma attenuata, iii. 489. 



Banffium, iii. 436. 



Bertrandii, iii. 476, 487. 



Boothli, iii. 468. 



boreale, iii. 462. 



hrachystoma, iii. 480. 



coarctuta, iii. 485. 



cxridans, iii. 487. 



Comarmondi, iii. 473. 



concinna, iii. 470. 



Cordieri, iii. 467. 



costulatum, iii. 484, 



decussata, iii. 452. 



Farranii, iii, 483. 



Forbesii, iii. 482. 



Forthiensis, iii. 49). 



Ginnanianum, iii. 476. 



gracilis, iii. 473, 489. 



heptagona, iii. 458. 



ivflata, iii. 468. 



l<evigaium, iii. 476, 



leucosto7na, iii, 453. 



Leu/roi/i, iii. 468. 



linearis, iii. 470. 



Metcalfoi, iii, 485, 



nudtilincolata, iii. 492. 



nebula, iii. 476. 



nigra, iii, 455. 



Philberti, iii. 465. 



purpurea, iii. 465. 



reticulata, iii. 452, 467. 



rudis, iii. 467. 



rugulata, iii. 450, 



scabrum, iii, 471, 



septangidaris, iii. 458. 



sinuosa, iii. 452, 473, 492. 



SmitJiii, iii. 483. 



siriolata, iii. 483. 



suturalis, iii. 473. 



tews, iii. 462. 



Trevcllianum, iii. 4.')0, 452. 



Pleurotoma continued. 



turricula, iii. 450. 



Ulideana, iii. 455. 



Vahlii, iii. 455. 



variegattim, iii. 465. 



versicolor, iii. 465. 



Villiersi, iii. 488. 



vulpecula, iii, 473. 

 Polita cellaria, iv. 33. 



crystallina, iv. 42. 

 fulva, iv, 76. 



glabra, iv. 35. 



litcida, iv. 40. 



nitidosa, iv. 37 . 



nitidida, iv. 36. 

 POLYCERA, iii. 576. 



citrina, iii. 577. 



cornuta, iii. 576. 



cristata, iii. 580. 



flava, iii. 576. 



Lessonii, iii. 577. 



lineata, iii. 576. 



modesta, iii. 577. 



ocellata, iii. 578. 



ornata, iii. 576. 



punctilucens, iii. 574. 



quadrilineata, iii, 576. 



typica, iii, 576. 

 POLYCLINUM, i. 14, 17. 



aurantium, i. 14. 

 Polycyclus, i. 21, 

 Polypltemus acicula, iv. 131. 

 Polypus octopodia, iv. 209. 

 Polyzona variolosa, i. 1 9. 

 Pomatia adspersa, iv. 45. 



aperta, iv. 43. 

 Porcellana, S^c. iii. 495. 

 POROMYA, i. 203. 



Atiatinoides, i. 204. 



granulata, i. 204 : iv. 250. 

 Poronia rubra, ii. 94. 

 Proctonotus, iii. 607. 



mucroniferus, iii. 608. 

 Propilidium, ii. 443. 



Ancyloide, ii. 443 ; iv. 259, 

 PSAMAIOBIA, i. 270, 



antiquata, i, 260, 



costulata, i. 279, 



dccUvis, i. 267. 



dejloraia, i, 330. 



discors, i. 279, 



FeiToensis, i. 274. 



florida, i. 271,277. 



fragilis, i. 284. 



jugosa, i. 284. 



Laskoyi, i. 281. 



Icgumen, i. 256. 



polita, i. 336, 



polygomi, i. 286, 



