464. Buccinum sericatum, Banc. 



465. Rapana? cinerea, Say. 

 4(56. Fusus norvegicus, Chemn. 



467. Fusus pygmaeus, Gould. 



468. Fusus pellucidus, llanc. 



469. Fusus propinquus, Alder. 



470. Fusus HolboUii, Miill. 



471. Fusus islandicus, Chemn. 



472. Fusus ventricosus, Gray. 



473. Fusus latericeus, Miill. 



474. Fusus Kroyeri, Moll. 



475. Fusus tornatus, Gould. 



476. Fusus fornicatus, 0. Fabr. 



477. Fusus despectus, Lin. 



478. Fusus decemcostatus, Say. 



479. Trophon craticulatus, 0. Fair. 



480. Trophon clathratus, Lin. 



481. Trophon scalariformis, Gould. 



482. Trophon Gunneri, Loven. 



483. Sycotypus papyraceus, Say. 



484. Busycon pyrum, Dillw. 



485. Busycon canaliculatum, Z«h. 



486. Busycon carica, Lin, 



487. Busycon perversum, Lin. 



488. Trichotropis conica, Miill. 



489. Trichotropis borealis, B. <j- 5. 



490. Admete viridula, 0. Fabr. 



491. Cancellaria reticulata, LJn. 



492. Fasciolaria ligata, Migh. 



493. Fasciolaria gigantea, A'/en. 



494. Fasciolaria tulipa, Lin. 



495. Fasciolaria distans, Lain. 



496. Ranella caudata, Say. 



497. Murex spinicostata, Val. 



498. Strombus alatus, G'm. 



CEPHALOPODA. 



499. Spirula fragilis, Lmvi. 



500. Ommastrephes Bartratnii, Les. 



501. Onychia caribaea, ies. 



502. Onychoteuthis Fabricii, Moll. 



503. Onychoteuthis Bartlingii, Les. 



504. Loligopsis pavo, /^es. 



505. Loligopsis hyperborea, Stp. 



506. Sepiola atlantica, D'Orb. 



507. Rossia palpebrosa, Moll. 



508. Rossia Moelleri, Stp. 



509. Loligo punctata, DeKay. 



510. Loligo Pealei, Zes. 



511. Loligo brevipinna, Les. 



512. Cirroteuthis Muellerii, Esch. 



513. Octopus rugosus, D'Orb. 



514. Octopus groenlandicus, Z)ei(;. 



DOlIBTFUr SPECIES. 



515. Ascidia amphora, Ag. 



516. Ascidia ocellata, Ag. 



517. Area improcera. Con. 



518. Nucula radiata, DeKay. 



519. Nucula cascoensis, Migh. 



520. Modiola pulex. Lea. 



521. Modiola elliptica, Lea. 



522. Modiola tulipa. Lam. 



523. Modiola cicercula, Moll. 



524. Mytilus faba, 0. Fabr. 



525. Lucina multistriata. Con. 



526. Astarte Warhami, Llanc. 



527. Venericardia cribraria, <S'aj/. 



528. Cytherea occulta, Say. 



529. Petricola dactylus, Sow. 



530. Tellina tenuis, Da Costa. 



531. Tellina versicolor, Cozzens. 



532. Tellina maculosa, Lam. 



533. Tellina mera, «S'a^. 



534. Doris pallida, Ag. 



535. Dentalium occidentale, Stni. 



536. Crepidula intorta. Say. 



537. Crepidula acuta, Zea. 



538. Infundibulum depressum, .S'f;^ 



539. Delphinula coarctata, Migh. 



540. Margarita ornata, DeKay. 



541. Margarita multilineata, DeKay 



542. Cingula laevis, DeKay. 



543. Cingula modesta, X^a. 



544. Littorina lunata, Lea. 



545. Turbo canaliculatus, Say. 



546. Turritella areolata, Stm. 



547. Turritella aequalis. Say. 



548. Turritella alternata, 6'a^ 



549. Chemnitzia spirata, K. ^- S. 



550. Chemnitzia textilis, Kurtz. 



551. Actaeon parvus, Zca. 



552. Pasithea sordida. Lea. 



553. Sigaretus maculatus. Say. 



554. Cerithium cancellatum, L.ea. 



555. Columbella spizantha, /?«!;. 



556. Columbella Gouldiana, Ag. 



557. Buccinum "Wheatleyi, DeKay. 



558. Buccinum zonale, LJns. 



559. Fusus Trumbulli, LJns. 



560. Fusus murlcatus, Mont. 

 (c) 



