330 



EXPLANATION 01' PLATES. 



r" To be added to this family. 



ria. 



405. Pteroceras auraiitiacum. 



406. Strombus pugilis. 

 Clavalithus, fig. 548. ^ 

 Leiostoma, fig. 549. 

 Pyrella, fig. 550. 

 Tomella, fig. 551. 

 Myristica, fig. 552. 

 Vituliua, 553. 

 Cyrtulus, fig. 594. 

 Trophon, fig. 595. 

 Conopleura, fig. 596. 

 Mangelia, fig. 597. 

 Frastigiella, 598. 

 Hindsia, fig. 599. 



Fam. Purpurifera. 



407. Cassidaria ecbinopliora. Morio, Moutf. 



408. Side view of tbe outer lip, to skew the canal. 



409. Oniscia Oniscus. Cassidaria. 



410. Cassis tuberosa, reduced. 



411. erinaceus. Cassidea, Sw. 



412. testiculus. Cypi'secassis, Stutclibury. 



413. Eicinula borrida. Sistrum, Montf. 



414. Purpura persica. 



415. Tritonidea (PoUia, Grray.) articularis. 



416. Pbos senticosa. 



417. Monoceros crassilabrum. 



418. Concbolepas Peruviana. 



419. Harpa ventricosa. 



420. Dolium maculatum. 



421. Bucciniun undatum ; a, anterior of tbe aperture ; p. posterior, 



422. papillosum. Alectrion, Montf. 



423. Nassa arcularia. 



424. neritoidea. Cyclops, Montf. 



425. Cyllene, Grray. 



426. Eburna Zeylanica. 



