Part 41

Stilbe chrysoleucus of DeKay, the Leuciscus chrysoleucus of Storer, xlv, 279.

Sturgeon, spoonbill, of the Ohio, notice of, xii, 201.^f

Syngnathus fasciatus of DeKay, the S. Peckianus of Storer, xlv, 283. ---- viridescens of DeKay, the S. fuscus of Storer, xlv, 283.

Torpedo, new species, _D. H. Storer_, xlv, 165.^f

Uranidea quiescens of DeKay, the Cottus viscosus of Haldeman, xlv, 277.

Zeus crinitus, description of, _S. L. Mitchill_, xi, 144.^f

INSECTS and ANNELIDS.

Ægeria tricincta, xxxvi, 310. ---- caudata, xxxvi, 311. ---- cucurbitæ, xxxvi, 310. ---- exitiosa, xxxvi, 312. ---- fulvipes, xxxvi, 312. ---- pyri, xxxvi, 313. ---- scitula, xxxvi, 313. ---- syringæ, xxxvi, 311. ---- tipuliformis, xxxvi, 312.

Alypia octomaculata, xxxvi, 314.

Annelides, slates of Waterville, Maine, xli, 163.

Butterflies, emigration of, xiv, 387.

Calandra palmarum, or palm weavil, notice of, xl, 387.

Caterpillars, emigration of a colony of, _J. Skene_, ix, 284.^f

Cecidomyia destructor, notice of, _Miss M. H. Morris_, xl, 381. ----, notice of, with its parasites, _E. C. Herrick_, xli, 153.

ZOOLOGY--_Insects and Annelids_.

Ceratomia quadricornis, xxxvi, 293.

Chœrocampa chœrilus, xxxvi, 302. ---- pampinatrix, xxxvi, 301. ---- tersa, xxxvi, 303. ---- versicolor, xxxvi, 303.

Chrysomela vitivora, [Haltica chalybea] some account of, _D. Thomas_, xxvi, 113.^f ----, remarks on, _E. C. Herrick_, xxvii, 420.

Cicada septendecim, on the habits of, xiii, 224. ---- ----, notices and observations on, _S. P. Hildreth_, xviii, 47.^f ---- ----, remarks on, _D. Thomas_, xxi, 188.

Cychrus Andrewsii, xxxvi, 391. ---- angulatus, xxxvi, 392. ---- cristatus, xxxvi, 392. ---- Leonardii, xxxvi, 392. ---- tuberculatus, xxxvi, 392.

Deilephela lineata, xxxvi, 304. ---- Chamænerii, xxxvi, 305.

Furia infernalis, notice of, xiii, 396.

Geometra vernata, or elm tree moth, parasite of the eggs of, _E. C. Herrick_, xxxviii, 385; xl, 211.

Glaucopis epimenis, xxxvi, 319. ---- ipomææ, xxxvi, 316. ---- Latreillana, xxxvi, 319. ---- omphale, xxxvi, 317. ---- pholus, xxxvi, 318. ---- semidiaphana, xxxvi, 318.

Goliathus magnus, remarks on, xxxiv, 27.

Melolontha or May bug, notice of, _J. Cist_, viii, 269.^f

Phalæna antiqua, and some species of Papilio, _Miss D. L. Dix_, xix, 62, 63. ---- devastator, or cut-worm, _J. P. Brace_, i, 154.

Philampelus achemon, xxxvi, 300. ---- satellitia, xxxvi, 299. ---- vitis, xxxvi, 299.

Platygaster, a species of, parasitic on the eggs of the elm tree moth, xxxviii, 385; xl, 211.

Procris Americana, xxxvi, 315.

Pterogon inscriptum, xxxvi, 306.

Sesia diffinis, xxxvi, 308. ---- pelasgus, xxxvi, 308.

Smerinthus astylus, xxxvi, 290. ---- excæcata, xxxvi, 290. ---- geminata, xxxvi, 291. ---- Juglandis, xxxvi, 292. ---- modesta, xxxvi, 292. ---- myops, xxxvi, 291.

Sphinx, American species of, _T. W. Harris_, xxxvi, 282. ---- carolina, xxxvi, 294. ---- cinerea, xxxvi, 295. ---- cingulata, xxxvi, 293. ---- coniferarum, xxxvi, 297. ---- drupiferarum, xxxvi, 294. ---- ello, xxxvi, 297. ---- gordius, xxxvi, 295. ---- hylæus, xxxvi, 296. ---- kalmiæ, xxxvi, 295. ---- plebeia, xxxvi, 296. ---- sordida, xxxvi, 296.

Thyreus Abbottii, xxxvi, 307. ---- lugubris, xxxvi, 306. ---- nessus, xxxvi, 308.

Thyris maculata, xxxvi, 313.

Trochilium denudatum, xxxvi, 310. ---- marginatum, xxxvi, 309. ---- tibiale, xxxvi, 309.

Urocerus, insect, found in the wood of a table, _J. Foggo_, ix, 288.^f ----, remarks in reply, x, 65.

ARACHNIDA--_Spiders_.

Spiders and spider-webs, observations of J. Edwards on, xxi, 109.^f ----, miscellaneous notices concerning, xxi, 116. ----, North American, _N. M. Hentz_, xxi, 99.^f ---- of the United States, list of species described by N. M. Hentz, xlvii, 411.

ZOOLOGY--_Spiders_.

Acarus Crossii, xxxii, 374^f; xxxv, 125^f; xliii, 395; xlix, 227.

Aranea aculeata, notice of, _Miss D. L. Dix_, xix, 61.^f

Agelena, characters of genus, xxi, 103.^f

Attus, characters of genus, xxi, 107.^f

Clubiona, characters of genus, xxi, 102.

Dolomedes, characters of genus, xxi, 106.^f

Dysdera, characters of genus, xxi, 101.^f

Epeira, characters of genus, xxi, 104.^f

Epiblemum, characters of genus, xxi, 108.^f

Filistata, characters of genus, xxi, 101.^f

Gossamer spider, genus, xvi, 399.

Herpyllus, characters of genus, xxi, 102.^f

Hydrachna formosa, xxx, 354.^f ---- pyriformis, xxx, 358.^f

Linyphia, characters of genus, xxi, 104.^f

Lycosa, characters of genus, xxi, 106.

Mimetus, characters of genus, xxi, 104.^f

Oletera, genus, characters of, xxi, 100.^f

Pholcus, characters of genus, xxi, 103.^f

Segestria, characters of genus, xxi, 101.^f

Spermophora, a new sub-genus of spiders, _N. M. Hentz_, xli, 116.^f

Sphasus, characters of genus, xxi, 105.^f

Tegenaria, characters of genus, xxi, 102.^f

Tetragnatha, characters of genus, xxi, 104.

Theridium, characters of genus, xxi, 103.^f

Thomisus, characters of genus, xxi, 105.^f

ZOOLOGY--_Crustacea_.

CRUSTACEA.

Anatifa, metamorphosis of, and relation to Crustacea, _J. D. Dana_, xlv, 335.

Argulus catostomi, _J. D. Dana_ and _E. C. Herrick_, xxx, 388; xxxi, 297.^f ----, new species, _T. W. Harris_, xxxvi, 393.

Artemia salina, xli, 193.

*Astacus, fossil, xvii, 287.

Balanus peregrinus, xxiv, 131.^f

Caligus americanus, description of, _J. D. Dana_ and _C. Pickering_, xxxiv, 225.^f

*Cancer, fossil, xvii, 287.

Entomostraca in chalk, xxx, 382.

Limnadia, a new genus of Crustacea, iv, 372.

Trilobite, a supposed recent, from N. S. Shetland, xxvii, 395. ----, nature of, _J. Green_, xxiii, 396; xxxvii, 25.

_Trilobites._

*Asaphus astragalotes, xxv, 335. *---- diurus, xxxvii, 40. *---- limulurus, xlviii, 309.^f *---- myrmecoides, xxiii, 397. *---- platypleurus, xxxii, 169. *---- polypleurus, xxxiv, 380. *---- tetragonocephalus, xxv, 335. *---- Trimblii, xxxii, 347.

*Bumastis Barriensis, xlviii, 309.^f *---- Trentonensis, xlvii, 368.^f

*Calymene Bucklandii, xxxvi, 106.^f ---- bufo, xxxvii, 32; xxxviii, 410. *---- niagarensis, xlviii, 309.^f *---- odontocephala, xxv, 334. *---- phlyctainodes, xxxii, 167. *---- Rowii, n. sp., xxxiii, 406. *---- senaria, xlii, 230; xlvii, 363.^f

*Ceratocephala goniata, xxxiv, 377.^f

Ceratocephala ceralepta, xxxiv, 379.^f

*Ceraurus crosotus, _J. Locke_, xliv, 346^f; xlv, 222.^f *---- pleurexanthemus, xlvii, 363.^f

*Cryphæus, new genus, _J. Green_, xxxii, 343. *---- Boothii, xxxii, 344.^f *---- collitelus, xxxii, 346.

*Hemicrypturus, tail of, xlviii, 307.^f

*Homalonotus delphinocephalus, xlviii, 311.^f

*Illænus Trentonensis, xlvii, 368.^f

*Isotelus gigas, xlvii, 363.^f *---- megistos, xlii, 366.^f

*Paridoxides, species of, _J. Hall_, xxxiii, 139.^f *----, remarks on the genus, _J. Green_, xxxiii, 341. *---- Harlani, xxv, 336.

*Triarthrus Beckii, xlvii, 370.^f

*Trimerus Jacksonii, xxxii, 347.

*Trinucleus caractaci, xlvii, 378.^f *---- tesselatus, xlvii, 363.^f

MOLLUSCA--_Shells_.

Shells, new, of the coast of New England, _J. G. Totten_, xxvi, 366^f; xxviii, 347.^f ---- of Middlebury, Vt., _C. B. Adams_, xl, 266, 408. ---- of Massachusetts, southeastern shores, _C. B. Adams_, xxxvi, 387. ----, new, _A. A. Gould_, xxxviii, 196. ----, ----, _J. P. Couthouy_, xxxiv, 216; xxxvi, 389. ---- of Connecticut, catalogue of, _J. H. Linsley_, xlviii, 271.^f ---- on the Connecticut Reserve, Ohio, catalogue of, including many Helices, &c., xxxi, 36, 200. ----, new species, _H. C. Lea_, xlii, 106.^f ----, new freshwater, from Alabama, Tennessee, &c., _T. A. Conrad_, xxv, 338.^f ---- about Richmond, Indiana, list of, _J. T. Plummer_, xlviii, 94. ----, new, _B. Tappan_, xxxv, 268.^f ---- of some Ohio rivers, _S. P. Hildreth_, xiv, 276. ----, economical uses of some species of, xxxii, 53, 235. ----, fossil, tertiary of the United States, _T. A. Conrad_, xxiii, 204, 339; xxviii, 104, 280; xli, 344.^f ----, ----, ----, remarks on, and list of, _J. T. Hodge_, xli, 332, 343. ----, ----, ----, of the United States, mostly from Claiborne, Alabama, _H. C. Lea_, xl, 92.^f ----, ----, ----, from North Carolina, xxxix, 387. ----, ----, chambered univalve, Virginia, _M. Tuomey_, xliii, 187. ----, ----, transition, condition and character of, _T. A. Conrad_, xxxvi, 12; xxxviii, 86. ----, ----, freshwater shells with coal, Lancashire, England, xxxiv, 26. ----, ----, Cornwall, England, _C. W. Peach_, xlii, 327. ----, ----, of the Ludlow rocks, xxx, 48; xxxviii, 90. ----, ----, microscopic corallines and minute shells in white chalk, _Lonsdale_, xxxiii, 111.

* * * * *

*Actæon levis, xl, 94.^f *---- magnoplicatus, xl, 94.^f ---- parvus, xlii, 111.^f ---- trifidus, xxvi, 368.^f

Alasmodonta and Unio, on the genera, with descriptions of species, _D. H. Barnes_, vi, 107^f, 258.^f ----, vi, 275. ---- arcuata, vi, 277.^f

Alasmodonta complanata, vi, 278^f; xiv, 289. ---- marginata, vi, 279. ---- radiata, xxv, 341.^f ---- rugosa, vi, 278^f; xiv, 289. ---- undulata, vi, 279.

*Ammonites in Canada, viii, 84. *---- at Patterson, N. J., v, 241. *---- bellicosus, xxix, 150.^f *---- colubrellus, xxix, 154.^f *---- delawarensis, xviii, 244.^f *---- Hildrethi, xxix, 149.^f *---- hippocrepis, xvii, 280. *---- placenta, xvii, 279; xviii, 249.^f *---- telifer, xxiii, 290. *---- Vanuxemi, xviii, 244.^f

*Amphidesma constricta, xli, 347.^f *---- nuculoides, xli, 347. *---- protexta, xli, 347.

Anatina papyratia in Rhode Island, _J. G. Totten_, xxviii, 347.^f

Anculosa picta, xxv, 342.^f

Anculotus dentatus, xxxvi, 390.

*Anodonta abyssina, xxix, 149.^f ---- declivis, xxv, 341.^f ---- subvexa, xxv, 341.^f ---- undulata, xiv, 290.

*Anomia argentaria, xxiii, 293.^f *---- tellinoides, xxiii, 294.^f

Astarte castanea, xxviii, 348.^f ---- Danmoniensis, xxviii, 349.^f *---- tellinoides, xxiii, 342. *---- ungulina, xxiii, 342.

*Atrypa affinis, xlviii, 306.^f *---- congesta, xlviii, 305.^f *---- extans, xlvii, 369.^f *---- naviformis, xlviii, 305.^f *---- plicata, xlviii, 305.^f

*Avicula demissa, xlvii, 376.^f *---- leptonota, xlviii, 306.^f

*Baculites compressa, ii, 41; xxiii, 291. *---- ovata, ii, 41; xvii, 280; xviii, 249.^f

*Belemnites, age of, xxix, 351. *----, _Raspail's_ opinion respecting, xvii, 184. *----, animal of, xlv, 403.

Belemnites ambiguus, xxvii, 281; xviii, 249.^f *---- americanus, xvii, 281; xviii, 249.^f

*Bellerophon bilobatus, xlvii, 365^f; xlviii, 300.^f *---- punctifrons, xlvii, 369.^f *---- sulcatinus, xlvii, 359.^f

*Buccinum interruptum, xli, 345. *---- multirugatum, xli, 345. ---- obsoletum, xxxvi, 387. *---- parvum, xl, 100.^f ---- rosaceum, xxxviii, 197. ---- trivittatum, xxxvi, 387. ---- vibex, xxxvi, 387.

Bulla debilis, xxxviii, 196. ---- Gouldii, xxxvi, 390. ---- hiemalis, xxxvi, 390. ---- insculpta, Rhode Island, xxviii, 350.^f ---- lineolata, xxxvi, 389. ---- obstricta, xxxviii, 196. ---- oryza, Rhode Island, _J. G. Totten_, xxviii, 350.^f ---- triticea, xxxiv, 217.

*Calyptræa costata, ii, 40.

*Cameroceras trentonense, xlvii, 369.^f

Cancellaria buccinoides, xxxiv, 218. *---- pulcherrima, xl, 99.^f

*Cardita abbreviata, xli, 347.^f *---- alticostata, xxiii, 342. *---- decisa, xxiii, 292. *---- perplana, xli, 347.^f

Cardium pubescens, xxxiv, 216. ---- edule, xxxii, 254. ---- Mortoni, xxiii, 346. *---- sublineatum, xli, 347.^f

Carychium exile, xlii, 109.^f

*Cassis Hodgii, xli, 346.^f

Cerithium cancellatum, xlii, 111.^f *---- carolinense, xli, 345. ---- Emersonii, xxxvi, 388. ---- nigrocinctum, xxxvi, 388. ---- reticulatum, of Rhode Island and Massachusetts, _J. G. Totten_, xxviii, 352.^f ---- terebrale, xxxix, 373. *---- unilineatum, xli, 345.^f

*Chama congregata, xxiii, 341. *---- corticosa, xxiii, 341. ---- gigas, xxxii, 256.

Chiton, new species of, _D. H. Barnes_, vii, 69.^f ----, remarks on, xxxii, 251. ---- echinatus, vii, 71.^f ---- Emersonii, xxxiv, 217. ---- fulminatus, xxxiv, 217. ---- magellanicus, vii, 70. ---- niger, vii, 71.^f ---- peruvianus, vii, 70.^f ---- sagrinatus, xxxiv, 217. ---- striatus, vii, 70.^f

*Clavagella armata, xxiv, 129.^f

Claviger, characters of genus, _S. S. Haldeman_, xlii, 216.

Cochlodesma, new genus, _J. P. Couthouy_, xxxvi, 389.

Columbella avara, xxxvi, 387.

*Conulariæ, in Canada, viii, 85.

*Conus adversarius, xxxix, 388; xli, 345.^f *---- gyratus, xxiv, 131.^f *---- parvus, xl, 103.^f

*Corbula idonea, xxiii, 341. *---- oniscus, xxiii, 341.^f

Crepidula acuta, xlii, 108.^f *---- lirata, xxiii, 344.

*Cucullæa vulgaris, xvii, 285; xviii, 250.^f

Cyclas elegans, xxxix, 375. ---- staminea, xxv, 347.^f

*Cyclora, new genus of fossil shells, _J. Hall_, xlviii, 294. *---- minuta, xlviii, 294.

Cypræa, genus, notice of a monograph of, _Duclos_, xx, 379. *---- carolinensis, xli, 346.^f ---- moneta, xxxii, 250.

*Cypricardia alata, xlviii, 300.^f *---- angusta, xlviii, 306.^f *---- angustifrons, xlvii, 378.^f *---- modiolaris, xlvii, 379.^f *---- obsoleta, xlviii, 306.^f *---- orthonata, xlviii, 300.^f *---- ovata, xlvii, 378.^f

Cyrena purpurea, xlii, 106.^f

*Cyrtoceras pilosum, xlvii, 369.^f

*Cyrtolites ornatus, xlvii, 376.^f

*Cytherea excavata, xxiii, 292.^f *---- marylandica, xxiii, 343. ---- Sayana, _T. A. Conrad_, xxiii, 345.

*Delthyris brachynota, xlviii, 303.^f *---- decemplicata, xlviii, 313.^f *---- expansus, xlvii, 368.^f *---- niagarensis, xlviii, 313.^f *---- radiata, xlviii, 313.^f *---- sinuata, xlviii, 313.^f *---- staminea, xlviii, 313.^f

*Dispotœa dumosa, xli, 346.^f *---- multilineata, xli, 346.^f

*Donax rusticus, xxix, 151.^f

Eolis bostoniensis, xxxiv, 216. ---- diversa, new species, _J. P. Couthouy_, xxxvi, 385. ---- gymnota, xxxiv, 217. ---- salmonacea, xxxiv, 217.

*Exogyra costata, ii, 43; xvii, 284.

*Fasciolaria mutabilis, xli, 346.^f

*Foraminifera in the green sand of New Jersey, xli, 213.

*Fulgur contrarius, xxxix, 387. *---- excavatus, xxxix, 387. *---- incilis, xxiii, 343.

Fusus cinereus, xxxvi, 388. ---- harpularius, xxxiv, 218. *---- inhabilis, xxix, 150.^f ---- scalariformis, xxxviii, 197. ---- pleurotomarius, xxxiv, 218. ---- tornatus, xxxviii, 197.

Gnathodon, observations on the genus, _T. A. Conrad_, xxxviii, 92. ---- cuneata, xxxviii, 92. ---- flexuosa, xxxviii, 92, 93.^f *---- Grayi, xxxviii, 92. ---- minor, xli, 347.^f

*Gryphæa convexa and mutabilis, xvii, 283. *---- vomer, xvii, 283; xviii, 250.^f *---- plicatella, xxiii, 293.

Helix, species of, in Ohio, xxxi, 36. ----, observations on some, xl, 272. ---- multidentata, remark on, _C. B. Adams_, xl, 274. ---- pomatia, xxxii, 254.

*Infundibulum centralis, xli, 348.

Jaminia exigua, xxxiv, 217. ---- seminuda, xxxvi, 388.

Lacuna neritoidea, xxxviii, 197.

Lima glacialis, xxiii, 345.

Limnea acuminata, xxxix, 374. ---- chalybea, xxxviii, 196. ---- pallida, xxxix, 374. ---- stagnalis, xxxi, 35.^f ---- umbilicata, xxxix, 374.

*Lingula acutirostris, xlviii, 306.^f *---- antiqua, xlvii, 356.^f *---- cuneata, xlviii, 300.^f *---- elliptica, xlviii, 306.^f *---- oblata, xlviii, 306.^f *---- oblonga, xlviii, 307.^f

*Lucina dolabra, xxiii, 343. ---- floridana, _T. A. Conrad_, xxiii, 344. *---- jamaicensis, xxxix, 388. *---- pandata, xxiii, 343. *---- radians, xli, 347. *---- trisulcata, xli, 346.

*Mactra clathrodonta, xxiii, 340. *---- confraga, xxiii, 340. *---- congesta, xxiii, 340. *---- crassidens, xli, 346.^f *---- modicella, xxiii, 340. ---- ovalis, xxxviii, 196. *---- subparilis, xli, 346.^f

*Maclurea, xlvii, 360.^f *---- labiatus, xlvii, 359.^f *---- striatus, xlvii, 359.^f

Melampus borealis, xxiii, 345.

Melaniæ, general remarks on, _S. S. Haldeman_, xli, 21; xlii, 216.

Melania cincinnatiensis, _I. Lea_, xxxviii, 175. ---- congesta, xxv, 343. ---- olivula, xxv, 342.^f ---- prasinata, xxv, 342.^f

*Melongena alveata, xxiii, 344.

*Microceras, new genus of fossil shells, _J. Hall_, xlviii, 294. *---- inornatum, xlviii, 294.

*Mitra carolinensis, xxxix, 387, [called Voluta;] xli, 345.^f *---- eburnea, xl, 102.^f *---- elegans, xl, 102.^f *---- gracilis, xl, 101.^f

Modiola elliptica, xlii, 107.^f ---- glandula, xxvi, 367.^f ---- pulex, xlii, 107.^f

Murex, xxxii, 235. ---- despectus, xxxii, 251.

Mya margaritifera, xxxii, 68.

Mytilus edulis, xxxii, 252. *---- incrassatus, xli, 347. ---- margaritiferus, xxxii, 56.

Naiades, some remarks on a memoir by _I. Lea_, xvi, 378. ----, sexual characters of, _J. P. Kirtland_, xxvi, 117.^f ----, habits of, _J. P. Kirtland_, xxxix, 164.^f

Natica canaliculata, xxxviii, 197. *---- canrena, xxxix, 387. *---- caroliniana, xli, 347.^f ---- consolidata, xxxiv, 217. ---- flava, xxxviii, 196. ---- immaculata, xxviii, 351.^f *---- percallosa, xli, 348.

*Nautilus DeKayi, xxiii, 291.^f

*Nucula bella, xxiii, 343. *---- cœlata, xxiii, 343. *---- faba, xlvii, 369.^f *---- fabula, xlviii, 295. *---- inflata, xlvii, 369.^f *---- machæriformis, xlviii, 306.^f ---- mactriformis, xlviii, 306.^f ---- myalis, xxxiv, 216. ---- navicularis, xxxvi, 389. *---- obliqua, ii, 40; xlviii, 294. ---- tenuiculata, xxxiv, 216.

*Oliva litterata, xli, 345.^f

*Ophileta levata, xlvii, 357.^f *---- complanata, xlvii, 357.^f

*Orbicula, xlvii, 359.^f *---- palmulata, xlviii, 300.^f

*Orthis, xlvii, 359.^f *---- canalis, xlviii, 313.^f *---- circulus, xlviii, 305.^f *---- costata, xlviii, 295. *---- crispata, xlvii, 379.^f *---- flabellula, xlviii, 313.^f *---- hybrida, xlviii, 313.^f *---- pectinella, xlvii, 366.^f *---- striatula, xlvii, 366.^f *---- testudinaria, xlvii, 376.^f

*Orthoceras multilineatum, xlvii, 369.^f *---- primigenium, xlvii, 357.^f *---- trentonense, xlvii, 369.

*Orthocerata, in Canada, v, 213^f; viii, 84.^f *----, in Indiana, _J. T. Plummer_, xliv, 295. *----, divided into three genera, Actinoceras, Ormoceras and Huronia, xxxvii, 233. *----, structure of, _J. Hall_, xlvii, 109.

*Orthonota curta, xlviii, 306.^f

*Ostrea convexa, new species, ii, 42. *---- cristagalli, xvii, 284; xviii, 250.^f ---- edulis, xxxii, 241. *---- falcata, xvii, 284; xviii, 250.^f *---- panda, xxiii, 293. *---- plumosa, xxiii, 293. *---- radians, xxiv, 130. ---- scabra, xxxii, 247. *---- selliformis, xxiv, 130. *---- torosa, xxiv, 130.^f *---- urticosa, xxiii, 293.

Oxinoe ? glabra, xxxiv, 217.

Oyster shell deposits of the Atlantic coast, of Indian origin, xli, 168.

Paludina heterostropha, xxxv, 269.^f

*Pasithea cancellata, xl, 93.^f *---- elegans, xl, 93.^f *---- minima, xl, 92.^f ---- nigra, xxvi, 369.^f ---- sordida, xlii, 110.^f ---- ---- of Lea, the Actæon trifidus of Totten, xlii, 392.

Patella amæna, of Say, note on, _I. Lea_, xl, 31. ---- candida, xxxiv, 217. *---- tentorium, xxiii, 291.

*Pecten anatipes, xxiii, 293.^f *---- calvatus, xxiv, 130.^f *---- craticulus, xxiii, 293. *---- eboreus, xxiii, 341. ---- maximus, xxxii, 248. *---- membranosus, xxiv, 130.^f *---- perplanus, xxiii, 293.^f *---- quinquecostatus, xvii, 285; xviii, 250.^f *---- venustus, xxiii, 293.^f

*Pectunculus aratus, xli, 346. *---- carolinensis, xli, 346. *---- cuneus, xxiii, 342. *---- quinquerugatus, xli, 346. *---- stamineus, xxiii, 342. *---- trigonella, xxiii, 342.

*Pentamerus oblongus, xlviii, 303.

Periploma trapezoides, remark on, _J. P. Couthouy_, xxxvi, 384.

*Perna torta, ii, 38.

*Petricola centenaria, xxiii, 341.

*Pholadomya elongata, xxix, 153.^f *---- occidentalis, xxiii, 292.^f

Pholas, xxiii, 292. ---- costata, xxiii, 346. *---- ovalis, ii, 39.

Physa ancillaria, xl, 268, 269. ---- elongata, xl, 269. ---- gyrina, xl, 268, 269. ---- heterostropha, xl, 268, 269. ---- pomilia, xxv, 343. ---- Sayii, xxxv, 269.^f

Pinna rotundata, xxxii, 70.

*Plagiostoma, xviii, 245. *---- gregalis, xxiii, 292.^f *---- pelagica, xxiii, 293.^f

Planorbis antrorsus, xxv, 343. ---- hirsutus, xxxviii, 196. ---- virens, xxxix, 374.

Pleurotoma bicarinata, xxxiv, 218. *---- cancellata, xl, 98.^f ---- decussuta, xxxvi, 390.

Pleurotomaria, xlvii, 367^f, 368^f, 376.^f *---- lenticularis, xlvii, 365.^f *---- pervetusta, xlviii, 300.^f

*Polythalamia, fossil, from the Upper Mississippi, _J. W. Bailey_, xli, 400.^f *----, Petersburg, Va., _J. W. Bailey_, xlv, 313. *----, in the U. States, _J. W. Bailey_, xlviii, 340.^f

*Producta from St. Louis, xliii, 18,^f *----, &c., from Illinois, _C. U. Shepard_, xxxiv, 144^f, 150^f, 153.^f

*Productus hepar, xxix, 153.^f *---- pocillum, xxix, 150.^f *---- punctatus, xxix, 153.^f

*Pterinea carinata, xlvii, 376.^f *---- orbicularis, xlvii, 369.^f *---- undata, xlvii, 369.^f

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 produced by, in Plymouth Sound, xlii, 326.

*Scalaria annulata, xvii, 281; xviii, 250.^f *---- elegans, xl, 95.^f ---- novangliæ, xxxiv, 218. ---- subulata, xxxiv, 218. *---- venusta, xl, 95.^f

*Scalites angulatus, xlvii, 359.^f

*Scaphites Cuvieri, xvii, 280. *---- reniformis, xxiii, 291.

Sepiadæ, colossal recent, remarks on, xlii, 335.

*Sigaretus bilix, xxiii, 344.

Snails, habits of, _J. T. Plummer_, xlviii, 93.

*Solarium elaboratum, xxiii, 344. ---- cancellatum, xxiii, 344.

Solecurtus nitidus, xxxviii, 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 *---- rostratus, xxiv, 152.^f

Spirorbis, [correctly, Vermetus,] xvii, 282.

*Strophomena alternata, xlvii, 366.^f

*Strophomena deltoidea, xlvii, 363.^f *---- depressa, xlviii, 307^f, 312.^f *---- nasuta, xlvii, 378.^f *---- sericea, xlvii, 366^f, 369.^f *---- striata, xlviii, 312.^f *---- subplana, xlviii, 312.^f *---- transversalis, xlviii, 312.^f

*Subulites elongata, xlvii, 365.^f

Tellina sordida, xxxiv, 216.

*Terebra constricta, xl, 100.^f *---- multiplicata, xl, 101.^f

*Terebratulæ in Canada, viii, 85.

*Terebralula bovidens, xxix, 150.^f *---- fragilis, xvii, 283; xviii, 250.^f *---- Harlani, xvii, 283; xviii, 250^f; xxiv, 130.^f *---- lachryma, xxiv, 130.^f *---- lapillus, xxix, 153.^f *---- nuciformis, xxix, 150.^f *---- pennata, ii, 244.^f *---- plicata, ii, 43. *---- Sayi, xvii, 283; xviii, 250.^f ---- septentrionalis, xxxiv, 216.

*Teredo tibialis, xxiii, 292.

Thracia, on the genus, _J. P. Couthouy_, xxxvi, 382. ---- Conradi, xxxvi, 383. ---- similis, xxxvi, 383. ---- inequalis, xliii, 145.^f ---- ----, identical with the Periploma trapezoides of Deshayes, xliv, 420.

*Tornitella bullata, xxiii, 292.^f

*Trichotropis costellatus, xxxiv, 219.

*Triton pyramidatum, xl, 99.^f

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