529. 



530. 



531. 

 532. 

 533. 

 534. 

 535. 

 536. 

 537. 

 538. 

 539. 

 540. 

 541. 

 542. 

 543. 

 544. 

 545. 

 546. 

 547. 

 548. 

 649. 

 650. 

 551. 

 552. 

 553. 

 554. 

 555. 



556. 

 557. 

 558. 

 559. 

 560. 

 561. 

 562. 



563. 

 564. 

 565. 

 566. 

 567. 

 568. 

 569. 



570. 

 571. 

 572. 

 573. 

 574. 

 575. 



PECTINIBRANCHIATA. 



ROSTRIFERA. 

 Naricidae. 



Narica cryptophila, Cpr. 

 Calyptrajidae. 



Crucibulum imbricatum, Shij. 

 Crucibulum Jewettii, Cpr. 

 Crucibulum radiatum, Brod. 

 Crucibulum serratum. 

 Crucibulum spinosum, Shy. 

 Crucibulum umbrella, Desk. 

 Calyptraea cepacea, Brod. 

 Calyptraea corrugata, Brod. 

 Calyptraea planulata, Brod. 

 Galerus conicus, Brod. 

 Galerus mamillaris, Brod. 

 Galerus sordidus, Brod. 

 Galerus subreflexus, Cpr. 

 Galerus unguis, Brod. 

 Trochita spirata, Forhes. 

 Trochita ventricosa, Cpr. 

 Crepidula aculeata, Gmel. 

 Crepidula adunca, Shy. 

 Crepidula arenata, Brod. 

 Crepidula dorsata, Brod. 

 Crepidula excavata, Brod. 

 Crepidula incurva, Brod. 

 Crepidula marginalis, Brod. 

 Crepidula nivea, C. B. Ad. 

 Crepidula onyx, Shj. 

 Crepidula unguiformis, Lam. 



Capulidoe. 

 Hipponyx antiquatus, Linn. 

 Hipponyx barbatus, Shy. 

 Hipponyx Grayanus, Mke. 

 Hipponyx mitrula, Shy. 

 Hipponyx planatus, Cpr. 

 Hipponyx serratus, Cpr. 

 Capulus 



Vermetid2e. 

 Aletes centiquadrus, Vnl. 

 Aletes margaritarum, Val. 

 Vermetus eburneus, Rve. 

 Vermetus Hindsli, Gray. 

 Bivonia albida, (,'pr. 

 Bivonia contorta, Cpr. 

 Petaloconchus macrophrag- 

 ma, Cpr. 



Ca?cidae. 

 Caecum abnormale, Cpr. 

 Caecum clathratum, Cpr. 

 Caecum corrugulatum, Cpr. 

 Ceecum dextroversum, Cpr. 

 Caecum elongatum, Cpr. 

 Caecum farcimen, Cpr. 



576. 

 577, 



578, 

 579, 

 580. 

 581. 

 582, 

 583. 

 584. 

 585, 

 586. 

 587, 

 588 

 589. 



590. 

 591 

 592. 

 593. 



594. 



595, 

 596, 

 597. 

 598. 

 599. 

 600. 

 601. 

 602. 

 603. 

 604. 

 605. 

 606. 

 607. 

 608. 

 609. 



610. 



611. 

 612. 



613. 

 614. 



615. 

 616. 

 617. 

 618. 

 619. 

 620. 

 621. 

 622. 

 623. 

 624. 



Caecum firmatum, C. B. Ad. 

 Caecum glabriforme, Cpr. 

 Caecum heptagonum, Cpr. 

 Caecum insculptum, Cpr. 

 Caecum laeve, C. B. Ad. 

 Caecum laqueatum, C. B. Ad 

 Caecum liratocinctum, Cpr 

 Caecum obtusum, Cpr. 

 Caecum quadratum, Cpr. 

 Caecum reversum, Cpr. 

 Caecum subimpressum, Cpr. 

 Caecum subspirale, Cpr. 

 Caecum teres, Cpr. 

 Caecum undatum, Cpr. 



Turritellidae. 

 Turritella fascialis, Rve. 

 Turritella goniostoma, Val. 

 Turritella nodulosa, King. 

 Turritella rubescens. Rue. 

 Turritella tigrina, Kien. 



Ceritliiadae. 

 Cerithium alboliratum, Cpr. 

 Cerithium famelicum, C. B. Ad. 

 Cerithium interruptum, Mke. 

 Cerithium irroratum, C. B. Ad. 

 Cerithium maculosum, Kien. 

 Cerithium musicum, Val. 

 Cerithium pacificum, Sby. 

 Cerithium stercusmuscarum, V. 

 Cerithium uncinatum, Gmd. 

 Vertagus fragraria, Val. 

 Vertagus gemmatus, Hds. 

 Cerithidea mazatlanica, Cpr. 

 Cerithidea Montagnei, D'Orb. 

 Cerithidea pulchra, C. B. Ad. 

 Cerithidea varicosa, Sby. 



Ti-uiicatellidae. 

 Truncatella Bairdiana, C.B.Ad. 



Melaniadae. 

 Melania Gouldii, //. S,- A. Ad. 

 Pyrgula quadricostata, Cpr. 



Ainpiillaridae. 

 Ampullaria Cumingii, King. 

 Am.pullaria malleata. 



Litorinida;. 

 Litorina aberrans, Phil. 

 Litorina aspera, Phil. 

 Litorina conspersa, Phil. 

 Litorina coronata, Lam. 

 Litorina fasciata, Gray. 

 Litorina Philippii, Cpr. 

 Litorina pulchra, Phil. 

 Litorina varia, Sby. 

 Modulus catenulatus, Phil. 

 Modulus disculus, Phil. 



(i) 



