A. E. Tern'll — Catalogue of 3L:rr h,e Mollusc a. 
5^5 
Figure 3 . — Pororaya granulota. p. 564. typical form, interior view, x 4 diameters. 
Gulf of Maine. 
Figure 4. — The same. Ostade of left valve. 
Figure 5. — Area pectunculoides. var. grandis. p. 574. x 4 diameters. Gulf of Maine. 
Figure 6. — A tculoides. p. 574. short oblong form, x 4 diameters. 
Figure 7 . — Creaelh donssata. p. 578. x 12 diameters. 
Figure 8 . — -Bacrydium vitreum, p. 579. x 15 diaineten . 
Figure 8a . — The same. Hinge, left valve. 
Figure 9 . — Xylophaga dorm it meters. Casco Bay. 
. — Netera glacialis, p. 562. large form, with cartilage pit as in -V. aretiea, 
x 2£ diameters. 
Figure 1 06. — The same. Commonest variety. 
— Necera oh -so. p. 563. a common variety, x 2f diameters. Gulf of Maine. 
Figure 1 1 . — Pecten Hoskynsi. p. 5S1. typical form, x 4 diameters. From off Nova Sco- 
tia, 190 fathoms. 
Plate LYII. 
Figure 1. — Pleurotoma Dalli. p. 451, x 14. 
Figure la. — The same. 
Figure 2 . — Pleurotoma Carpeateri, p. 452. x 4. 
Figure 3. — PieurotomeUa Agassizii. p. 454. x 14 . 
Figure 3a. — The same. Uncini. x 250. 
Figure 4. — PieurotomeUa Pandiemis. p. 456. natural size. 
Figure 4a. — The same. Uncini. x 75. 
Figure 5. — PieurotomeUa Packardii. , * . p. 453. uncini from the original specimen. 1 250. 
Figure 6. — Bela Gouldii. p. 463. x 3. 
Figure 6a. — Bela Gouldii. p. 465. uncini, x 75. 
Figure 7. — Bela hebes Y . p. 459. x 4. 
Figure 8. — Bela pygmcea Y., p. 460. x 6. 
Figure 9. — B-la harpularia. , p. 473. animal, natural size. 
— oncinnula, var. acuta, p. 470, uncini. x 15. 
Figure 11. — Beta concinnula, p. 468. (Mass. Bay. sta. 2''7), uncini. x 75. 
Figure 12. — Bela scalar is. with animal, p 471. Casco Bay. natural size. 
Figure 12a. — Bela S olaris, p. 471. ? . uncini (sta. 293 1 . x 75. 
Figure 13. — Bela cancelhlta, p - 475. uncini, x 75. 
Figure 14. — Bela i net's ala. uncini, x 125. 
Figure 16 and 16a. — Bela bicarinata. p. 481. F.astport. 1870, x 3. 
Figure 17. — Taranis pulcheUa Y., p. 487. shell. Original type, x 14. 
Figure 18. — Taranis Mbrchii, p. 486, shell, x 6. 
Figure 19. — Sipho aelatus. p. 506. shell, x 3. 
Figure 19a. — The same. Radula, x 75. 
Figure 20. — Sipho parvus, p. 504. shell, x 3. 
Figure 20a. — The same. Part of radula. x 75. 
Figure 206. — The same. Operculum. 
Figure 21. — Sipho pygmeeus, J . radula. x 75. 
Figure 22. — Sipho glyptus, p. 505, radula. x 75. 
Figure 23. — Sipho Sabinii Gray, p. 503. apical whorls, x 6. 
