Zootocy—Mollusca. 
*Polythalamia, in the U. aitits 
Z0O0 312 Z00 
J. W. Bailey, x\viii, 340.f 
eres: from st. lone, xliii,18.f 
, &e., from Illinois, C. U. 
Shepard! xxxiv, 144f, 150£, 
153.f 
*Productus hepar, xxix, 153.! 
7 pocillum, xxix, 150.f 
‘e punctatus, xxix, 153.! 
*Pterinea carinata, xlvii, 376.4 
me orbicularis, xlvii, 369.f 
a undata, xlvil, 369.1 
Pupa milium of Gould, remarks 
on, C. B. Adams, xl, 271. 
Purpura lapillus, xxxvi, 388. 
Pyramis fusca, xxxvi, 388. 
striatulus, xxxiv, 218. 
Ranella caudata, xxxvi, 388. 
*Rostellaria arenarum, xxiii,292.f 
Saxicava, geological changes pro- 
duced by, in Plymouth Sound, 
xlii, 326. 
*Scalaria annulata, xvii, 281; 
xvili, 250.f 
ol elegans, xl, 95.f 
novangliz, xxxiv, 218. 
subulata, xxxiv, 218. 
cf venusta, xl, 95.f 
*Scalites angulatus, xlvii, 359.f 
*Scaphites Cuvieri, xvii, 280. 
i! reniformis, xxill, 291. 
Sepiadz, colossal recent, remarks 
on, xlil, 335. 
*Sigaretus bilix, xxii, 344. 
Snails, habits of, J. T. Plummer, 
xlviii, 93. 
*Solarium elaboratum, xxiii, 344. 
— cancellatum, xxii, 344. 
Solecurtus nitidus, xxxviiil, 196. 
Solemya borealis, Rhode Island, 
xxvi, 366.f 
Solen siliqua, xxxii, 251. 
*Spirifer cameratus, xxix, 150.f 
* fastigiatus, xxix, 152. f 
* fimbriatus, xxix, 150. f 
i rostratus, xxix, 152.f 
Spirorbis, [correctly, Vermetus,] 
Xvli, 282. 
*Strophomena alternata, x!vil, 
366. | 
Zootocy— Mollusca. 
*Strophomena deltoidea, xlvii, 
363.f 
%* depressa, xlvili, 307f, 
Be 
nasuta, xlvii, 378. f 
sericea, xlvil, 366', 369.f 
% 
* 
*_____ striata, xlvili, 312. f 
* 
* 
subplana, xnviiie 312.f 
transversalis, lai 312.f 
*Subulites elongata, xlvii, 365.f 
Tellina sordida, xxxiv, 216. 
*Terebra constricta, xl, 100.‘ 
- multiplicata, xl, 101.f 
*Terebratule in @anadet vill, 85. 
*'T'erebratula bovidens, ie 150.f 
“a fragilis, xvil, 283; xviii, 
250.! 
*_____ Harlani, xvil, 283; xviii, 
250f; xxiv, 180.f 
lachryma, xxiv, 130.f 
lapillus, xxix, 153.f 
nuciformis, ot 150.f 
pennata, ii, 244.f 
*—___ licata, | A, ‘43. 
; Sayi, xvii, 288 ; xviii, 250.f 
septentrionalis, coed, 216. 
*'Teredo tibialis, xxiii, 292. 
Thracia, on the genus, J. P. 
Couthouy, xxxvi, 382. 
Conradi, xxxvi, 383. 
similis, xxxvi, 383. 
inequalis, xliii, 145.f 
, 1dentical with the 
Periploma trapezoides of De- 
shayes, xliv, 420. 
*Tornitella bullata, xxiii, 292.f 
Trichotropis costellatus, xxxiv, 
Qs 
*Triton pyramidatum, xl, 99. - 
Tritonia Reynoldsii, xxxiv, 217. 
Trochlea, characters of genus, 
S. S. Haldeman, xlii, 216. 
*Trocholites ammonius, xlvii, 
368. 
*Trochus planulatus, xl, 96.f 
*Turbinella fusoides, xl, 98.f 
Turbo cinereus, xxxiv, 218. 
incarnatus, xxxiv, 218. 
inflatus, xxvi, 3868.f 
—— minutus, xxvi, 369.! 
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