| 
MOLLUSCA AND SHELLS. 
14 
re 5 dorsal views | 
Fic. 513. PsAMMOBIA FLORIDA, lateral, and 513 a, 
g. 
of the shell; 513 4, the hinge.—p. 403. 
i : arged ; 
514, TELLINA LAUTA, lateral view of the shell, enlarged ; 
He . . . 
514 a, interior of the shell; 514 4, dorsal view, in outline.—p- 
408. 
ae sea 
Fie. 515. TELLINA COMPTA, lateral view of the shell, enlarged ; 
a, 515. 
515 a, interior of the shell ; 515 6, back of the shell, in outline. 
—p. 406. 
Fig. 516. TELLINA PERULA, exter 
516a, a white specimen ; | 
d; 516d, inside of a red specimen.—p. 409. 
of the right valve, and 
‘or of a red, and of a white 
516 6, dorsal view; 516 ¢, | 
specimen ; 
the hinge, enlarge 
Fig. 517. TELLINA EXCULTA, lateral view 
‘ 517 b, dorsal view of the shell.— 
517 a, front of the left valve ; 
p. 407. f 
ae rf mie ee: 
Fig. 518. TELLINA TITHONIA, lateral view of the shell; 518 a, 
interior, with the hinge ; 518 4, dorsal view of the shell.—p. 400. 
PLATE 36. 
Fic. 519. TELLINA CONCENTRICA, lateral, and 519 a, dorsal views 
of the shell; 519 0, the hinge—p. 404. 
Fic. 520. Donax PALuipus, lateral view of the shell ; 520 a, 
interior, with the hinge ; 520 4, dorsal view of the shell.—p. 410. 
Fig. 521. Donax tinotUs, lateral, and 521 a, dorsal views of the 
shell.—p. 411. 
Fig. 522. Donax CROCATUS, lateral, and 522 a, dorsal views of 
the shell, magnified ; 522 6, natural size.—p. 412. 
Fig. 523. Lucina rAMULOSA, lateral view of the shell; 525 a, 
inside, with the hinge; 523 b, dorsal view of the shell.—p. 415. 
Fig. 524. Lucina incutra, lateral view of the shell; 524 a, 
inside, with the hinge ; 524 6, back of the shell.—p. 412. 
Fig. 525. Lucina veEsicuLa, exterior of the shell; 525 a, inte- 
rior, with the hinge; 525 6, dorsal view of the shell.—p. 414. 
Fig. 526. Cycias EGREGIA, lateral, and 526 a, dorsal views of 
the shell; 526 4, the hinge.—p. 425. 
Fig. 027. CycLaAS PATELLA, lateral, and 527 a, dorsal views of 
the shell; 527 6, the hinge.—p. 426. 
Fig. 628. Lucina LentIcULA, lateral, and 528 a, dorsal views of 
p. 413. 
Fig. 529. Cyrena pEBILIS, lateral, and 529 a, dorsal views of 
the shell; 529 b, the hinge.—p. 427. 
the shell; 528 6, the hinge. 
C RaQ N . erthin tric f a jee OSS : 
Fig. 532. CarpitA vENTRICOSA, lateral, and 532 a, dorsal views 
of the shell.—p. 417. 
Tyee Pe i-dls 53 \ 7 | bed 
Fig. 533, Carpira procera, lateral view of the shell.—p. 416. 
: ro ees ie TINTT Tas 4 f 
Fig. 534, Carpium BLANDUM, lateral, and 534 a, dorsal views of 
the shell.—p. 418. 
POA TE 87. 
Fig. 535. Cy 2 Pp 
g. 930. CYPRICARDIA ROSEA, lateral, and 535 a, dorsal views 
of ke shell; 535 6, interior, with the hinge.—p. 389, 
Fig. 536. Artuemis LAMBATA, | 
ateral, and 536 a, dorsal views 
of the shell.—p. 422. 
Fig. 537 Terie YRETT R27 
g. 037, VENUS TOREUMA, lateral, and 537 a 
the shell—p. 419. 
re 
Fig. 538. Venus ricipa, lateral view of a dil 
, dorsal views of 
oe ra oe gee ated specimen ; 
’ “ mecium specimen ; 938 6, dorsal view of the lat. 
ter.—p. 420. 
Fig. 539. Nucu ILCU 
g. 039. NucuLa sunct LATA, lateral, 
of the shell, enlarged ; 539 8, tl 
size.—p. 424, 
RQ ’ 
and 539 a, dorsal views 
1e ] yey ‘ nif » ee 
e hinge, magnified ; 539 ¢, natural 
Fig. 540. Unio DoRSUOSUS, lateral, 540 a, dorsal, and 540, in- 
terior views of the shell.—p. 430. 
Fig. 541. Unto VERECUNDUS, lateral view of the shell; 541 a, 
interior, with the hinge; 541 b, back of the shell; 541 c¢, undula- 
tions of the beak, in detail._—p. 431. 
Fig. 542. Uxio LUTULENTUS, lateral, 542 a, interior, and 542 3, 
dorsal views of the shell; 542, lateral view of the animal.—p, 
428. 
PLATE 38. 
Fig. 543. UNIo PROFUGUS, lateral, 543 a, dorsal, and 543 3, in- 
terior views of the shell.—p. 429. 
Fig. 544. Unio rAMELicus, late ral, 544 a, interior, and 544 4, 
dorsal views of the shell.—p. 432. 
Fig. 545, ALASMopONTA FALCATA, lateral view of the valves, 
with the hinge ; 545 a, dorsal view of the shell.—p. 433. 
Fig. 546. Awoponta coGNATA, lateral view of the shell, with 
the hinge ; 546 a, dorsal view of the shell.—p. 439. 
Fig. 547. ANODONTA FEMINALIS, lateral view of the shell; 547 a, 
interior, with the hinge; 547 6, back of the shell.—p. 43 
Fig. 548. ANODONTA PUBERULA, lateral, and 548 a, dorsal views 
of the shell; 548 6, the hinge, and interior.—p. 434. 
PLATE 39. 
Fig. 549, AvicuLa pica, exterior, and 549 a, mterior surfaces of 
the shell; 549 5, edge view of the shell.—p. 443. 
Fig. 550. AvicuLa LuripA, lateral view of the exterior; 550 a, 
the inside of the shell; 550 6, edge view of the shell.—p. 440. 
Fig. 551. AvicuLA FUCATA, exterior surface; 551 a, interior 
surface of the shell; 551 6, edge view of the shell.—p. 441. 
Fig. 552. AVICULA GLABRA, outer, and 552 a, inner surfaces of 
the shell; 552 6, edge view of the shell.—p. 442. 
Fig, 553. AvicuLA vipuUA, exterior, and 553 a, interior surfaces 
of the shell; 553 6, edge view of the shell.—p. 439. 
PLATE 40. 
Fig. 554. AVICULA NIGRA, exterior surface of the shell; 594 4, 
edge of the shell.—p. 438. 
Fig. 555, AVICULA MARGARITIFERA, view of the interior, in out- 
line.—p. 437. 
Fig. 556. PERNA NANA, exterior, and 556 a, interior surfaces of 
the shell; 556 0, edge of the shell.—p. 445. 
Fig. 557. Perna ErREmirA, exterior, and 557 a, interior surfaces 
of the shell; 557 }, an elongated form ; 557 c, a young specimen, 
showing the sculpture ; 557 d, edge view of the shell.—p. 446. 
Fig. 558. Perna TORVA, exterior, and 558 a, interior views of 
the shell; 558 b, edge of the shell.—p. 445. 
Fig. 559. Perna ARGILLACEA, outside of the shell; 559 a, in- 
side of the shell; 559 4, edge of the shell._—p. 444. 
Fig. 560. Anca sorta, lateral, and 560 a, dorsal views of the 
shell.—p. 423. 
Fig. 61. Mytizus (Modiola) FLABELLATUS, lateral, and 5614, 
dorsal views of the shell.—p. 453. 
