MOLLUSCA AND SHELLS. 
Fig. 466. SIPHONARIA LEPIDA, exterior of the shell; 466 a, late- 
ral view of the shell and animal; 466 b, plantar view of the ani- 
mal; 466 c, interior of the shell.—p. 360. 
Fig. 467. SIPHONARIA CORNUTA, exterior, 467 a, interior, and 
467 b, lateral views of the shell.—p. 357. 
. 5 
Fig. 468. SIPHONARIA NORMALIS, exterior, 468 a, lateral, and 
468 0, interior views of the shell.—p. 359. 
PLATE 80.) 3/ 
Fig. 469. FISSURELLA PICTA, lateral view of the animal, with 
an outline of the shell, 469 a, plantar view of the animal.—p. 
367. 
Fig. 470. FISSURELLA 
Chili. 
Fig. 471. FISSURELLA CRATITIA, the back of the shell; 471 a, 
lateral, and 471 b, interior views of the shell.—p. 367. 
Fig. 472. FissURELLA VERNA, dorsal, and 472 a, interior views 
of the shell; 472 6, lateral view; 472 c, dorsal view of the small 
variety. —p. 366. 
Fig. 473. FISSURELLA OCCIDENS, exterior, 473 a, interior, and 
473 b, lateral views of the shell —p. 364. 
Fig. 474. FISSURELLA CRUCIATA, dorsal, 474 a, interior, and 474 
b, lateral views of the shell, 474 c, details of sculpture, magni- 
fied.—p. 565. 
Fig. 475. RIMULA CUCULLATA, dorsal, 475 a, interior, and 475 b, 
lateral views of the shell; 476 c, details of sculpture, magnified. 
—p. 368. 
Fig. 476. RIMULA GALEATA, dorsal, 476 a, interior, and 476 b, 
lateral views of the shell; 476 c, details of sculpture, magnified. 
—p. 369. 
Fig. 477. RIMULA CONICA, ventral view of the animal, magni- 
fied; 477 a, superior, and 477 b, inferior views of the head of the 
animal, magnified; 477 c, the shell, natural size, ventral view of 
the same; 477 d, sculpture, enlarged.—p. 870. 
Fig. 478. RIMULA COGNATA, dorsal view of the shell; 478 a, 
ventral view of the animal; 478 b, lateral view of the shell and 
animal; 478 c, head and tentacles of the animal, in outline, en- 
larged. —p. 371. 
, undetermined; from the coast of 
PLATEGI) 32,33 
Fig. 480. CREPIDULA NUMMARIA, superior, 480 a, inferior, and 
480 b, lateral views of the shell.—p. 377. _ 
Fig. 481. CREPIDULA LINGULATA, exterior, 481 a, interior, and 
481 b, lateral views of the shell, 481 c, details of sculpture, mag- 
nified.—p. 376. 
Fig. 482. CREPIDULA ROSTRIFORMIS, exterior, 482 a, interior, and 
482 b, lateral views of the shell.—p. 375. 
Fig. 483. LEPTOCONCHUS MADREPORARUM, animal, with the shell, 
seen from beneath; 483 a, aperture of the shell, normal form; 
483 b, and 488 c, outlines of a variety, such as that in which the 
animal is represented.—p. 378. 
Fig. 484. CALYPTRÆA FASTIGIATA, dorsal, 484 a, basal, and 484 
b, lateral views of the shell. —p. 379. 
Fig. 485. CALYPTRZA PILEOLUS, D'Orb., lateral view of the shell 
and animal. ; 
Fig. 486. CAPULUS SAGITTIFER, superior, 486 a, inferior, and 486 
b, lateral views of the shell, enlarged; 486 c, details of sculpture, 
magnified ; 486 d, natural size.—p. 383. 
Fig. 487. CALYPTRZA CHLORINA, superior, 487 a, inferior, and 
4 
13 
487 b, lateral views of the shell, 487 c, details of sculpture, mag- 
nified; 487 d, the cup, enlarged.—p. 380. 
Fig. 488. CALYPTREA RADIOSA, exterior, 488 a, interior, and 488 
_6, lateral views of the shell; 488 e, details of sculpture, magni- 
fied.—p. 381. | 
Fig. 489. PILEOPSIS CRYSTALLINA, outer, 489 a, inner, and 489 
b, lateral views of the shell —p. 382. 
Fig. 490. HIPPONIX IMBRICATA, outer, 490 a, inner, and 4902, 
profile views of the shell; 490 c, details of sculpture, magnified. 
—p. 379. 
Fig. 491. EMARGINULA FUNGINA, dorsal, 491 a, interior, and 491 
b, profile views of the shell; 491 c, details of sculpture, magni- 
Hed —p. 374. 
Fig. 492. EMARGINULA OSSEA, dorsal, 492 a, interior, and 492 b, 
profile views of the shell, 492 c, details of sculpture, enlarged.— 
p. 373. 
Fig. 493. EMARGINULA ASPERA, exterior, 498 a, interior, and 
493 b, lateral views of the shell; 493 c, details of sculpture, en- 
larged.—p. 372. 
Fig. 494. EMARGINULA CINEREA, exterior, 494 a, interior, and 
494 b, lateral views of the shell; 494 c, details of sculpture, en- 
larged.—p. 373. 
Fig. 495. ANCYLUS ADUNCUS, dorsal, 495 *, interior, and 495 a, 
lateral views of the shell, enlarged ; 495 6, natural size.—p. 125. 
— Fig. 496. MACTRA DEBILIS, engraving omitted. 
Fig. 497. PHOLAS PATULA, engraving omitted. 
Fig. 498. Mya PRACISA, lateral, and 498 a, dorsal views of the 
shell, 498 5, view of the interior.—p. 384. 
Fig. 499. PANOPÆA ANTARCTICA, engraving omitted. 
Fig. 500. PANDORA CISTULA, the shell, expanded, with the 
hinge; 500 a, dorsal edge of the shell; 5005, the flat valve.—p. 
396. 
Fig. 501. SOLEN SICARIUS, lateral, and 501 a, dorsal views of the 
shell; 5015, interior, with the hinge.—p. 387. 
Fig. 502. SOLEN SCALPRUM, lateral, and 502 a, dorsal views of 
the shell, 502 %, the hinge, and interior.—p. 388. 
Fig. 503. MACTRA DELUTA, lateral, and 503 a, dorsal views of 
the shell; 503 2, the hinge, and interior.—p. 391. 
Fig. 504. MACTRA CUNEOLA, lateral, and 504 a, dorsal views of 
the shell; 504 5, the interior, and hinge.—p. 890. 
Fig. 505. MACTRA MARCIDA, lateral, and 509 a, dorsal views of 
the shell; 505 b, the interior, and hinge.—p. 392. 
PLATE(32) 34 
Fig. 506. MACTRA FALCATA, lateral, and 506 a, dorsal views of 
the shell; 506 b, interior, with the hinge.—p. 393. 
Fig. 507. PANOPÆA GENEROSA, lateral, and 507 a, dorsal views 
of the shell; 507 b, outline of the hinge margin.—p. 385. 
Fig. 508. LUTRARIA CAPAX [L. maxima, Middend., name pre- 
occupied], lateral, and 508 a, dorsal views of the shell; 5080, 
the hinge.—p. 395. 
PLATE 83.) 37 
Fig. 509. OSTEODESMA BRACTEATUM, lateral, and 509 a, dorsal 
views of the shell; 509 b, inside of the shell.—p. 397, 
Fig. 510. OSTEODESMA BRASILIENSE, lateral, 510 a, internal, and 
510 b, dorsal views of the shell.—p. 398. 
Fig. 511. MESODESMA MUNDUM, lateral, and 511 a, dorsal views 
of the shell; 511 2, the hinge.—p. 400. 
