REFERRED ТО OR DESCRIBED IN 
Allolobophora, 96, тоо. 
Anculosa talniata, 180. 
Ancylus, 80. 
Arca, 460. 
ponderosa, 470. 
Asterias glacialis, 80. 
Cerebratulus, 89. 
Choetopterus, 95. 
Ciona, 6-112. 
Callista nimbosa, 307. 
Campaloma ponderosum, 264. 
Campephilus principalis, 138. 
Cardium, 415. 
Cassis cameo, 415. 
Castor canadensis carolinensis, 
403. 
Codakia orbicularis, 470. 
Dentalium, 89, 96, 99, 105 
100. 
Dosinia discus, 399. 
Fasciolaria, 325, 465, 
468 
467, 
gigantea, 325, 415, 418. 
tulipa, 415. 
Finna, 399. 
Fulgur, 416, 423, 424, 531. 
сатіса, 325, 415. 
perversum, 161, 223, 
305, 307, 316-325, 
415, 416, 454, 466, 
468. 
pyrum, 415. 
Grampus griseus, 423. 
Gypagus papa, 384. 
Illyanassa, 105. 1 
Lampsilis anodontoides, 270, 
285, 600. 
claibornensis, 263. 
fallaciosus, 572, 
hydianus, 572. 
purpuratus, 222, 263, 
270, 534, 572. 
rectus, 175, 270. 
 Lepidosteus tristoechus, 508. 
imax, 89 
Limnza, 89, 96, 105. 
Lithasia showalterii, 180. 
Macrocallista gigantea, 424. 
Marginella apicina, 416, 450, 
625. 
Myzostoma, 98-106. 
glabrum, 96. 
Neritina, go. 
Obovaria circulus, 177. 
Obliquaria reflexa, 177, 263. 
Odocolieus virginianus, 423. 
Oliva literata, 423. 
Pectunculus, 469. 
Physa, 89, 96, 105. 
Planorbis, 89, 96, 105. 
Polygyra, 89. 
Pyramidula alternata, 572. 
Quadrula boykiniana, 343. 
cornuta, 264, 300. - 
ebena, 177; 263. 
ellipsis, 572. 
heros, 263, 600. 
lachrysmosa, 572. 
INDEX TO SPECIES, ETC., 
VOLUME XIII. 
Quadrula metacora, 263. 
pernodosa, 177, 263, 
264. 
perplicata, 600. 
plicata, 584. 
pyramidata, 399, 584. 
stapes, 177. 
trapezoides, 249, 263, 
572. 
trigona, 572. 
Кап а cuneata, 281, 284, 
290, 295. 
Rhynchelmis, 96. 
Salpa, 108. 
Strombus gigas, 325, 415, 
461. 
Strongylocentrotus, 89, 04, 
09-107. 
Succinea, 89. 
Tritigonia tuberculata, 399. 
Truncilla penita, 177, 263. 
Trygon, 424. 
Tulotoma magnifica, 166, 
264. 
Unio, 89, 95, 551. 
congarceus, 177. 
crassidens, 399. 
forbesianus, 399. 
gibbosus, 263. 
Ursus americanus, 382. 
Venus mortoni, 469. 
Viviparus subepurpureus, 488, 
572. 
