INDEX. 



In this index subgenera and sections are treated as genera, and varieties are treated 

 as species. Those names here first proposed for groups or species are in italics. When 

 there is more than one page reference to a single entry in the index, that numeral which 

 is in italics indicates that it denotes the particular page where the genus or species is 

 described or treated of at length, as contrasted with the pages where it is merely men- 

 tioned. References to subheads or divisions of the volume will be found in the Table of 

 Contents. To avoid unduly increasing the length rather than- the usefulness of the index, 

 the names in the faunal lists in the Summary have not been entered in the index from 

 the pages on which the lists occur except in the case of a few species not mentioned in 

 the body of the tex^t 



Actinobolus 1409, 1416, 

 1417. 



abbreviata 1435. 



granulata 1431. 



radians 1435. 



tridentata 1433. 

 ^Egeria 1453- 

 yEora 1226. 



cretacea 1226. 

 Agaria 1409, 1416. 

 Agriopoma 1238, 1259, 1260, 



1261, 1262, 1264. 

 Allo gramma 1514, 1533- 



formosa 1514. 

 Amauropsis 



ocalana 1400. 

 Ameroda 1456. 

 Amesoda 1455, 1456. 

 Amiantis, 1238, 1257., . 



callosa 1258. 

 Amphidesma 1355. 



flexuosa 1339. 

 Amphithaea 1227. 

 Ampullina 



streptostoma 1400. 

 Amyantis 1257. 

 Amygdala 1322, 1323, 1326. 

 Amygdalum 1323, 1326. 

 Anaitis 1273, 1287. 



Burnsii 1294. 



ulocyma 1296. 

 Anatina 1522, 1530, 1531. 



alta 1529. 



Anatina, confd. 



antiqua 1530,- 1531. 



applicata 1531. 



Butleriana 1531. 



claibornensis 1528, 1530. 



convexa 1524. 



Leana 1528. 



myalis 1522, 1528. 



rupicola 1522. 



subrostrata 1530. 



tellinoides 1531. 



trapezoides 1528. 



truncata 1525. 

 Anatinacea 1513. 

 Anatinidae 1530. 

 Anodonta 1458. 

 Anodontia 1342, 1352. 



alba 1354- 



Anomala 1440, 1442. 

 Anomalocardia 1222, 1301, 

 1302, 1303, 1304, 1305. 



bowdeniana 1304. 



brasiliana 1306 



caloosana 1304, 1305, 

 1306. 



chipolana 1304. 



dupliniana 1305 



flexuosa 1306. 



floridana 1303, 1304. 



leptalea 1302. 



penita 1304. 



rostrata 1221. 



subimbricata 1302. 



Anomalodesmacea 1503. 

 Anomalodiscus 1303. 

 Ahomia 



senigmatica 1516. 



psittacea 1535. 

 Anthonya 1468. 

 Antigona 1222, 1271, 1273. 



lamellaris 1271. 

 Antigonus 1271. 

 Antilla 1344. 

 Antillia 1344. 

 Aphrodina 1272. 

 Aporema 1532. 

 Area 



millifila pi. Ivi. 

 Arcinella 1404, 1411, 1417- 



arcinella 1405. 



cornuta 1405. 



spinosa 1405. 

 Arcopagia 1219. 



tseniosa 1235. 

 Arctica 1222, 1500, 1501. 

 Arctoa 1227, 1228. 

 Arctoe 1227, 1228. 

 Arcturus 1417- 

 Argyrotheca 1537, 1539- 



Barrettiana 1539. 



lutea 1538, 1539- 



Schucherti 1539. 

 Armida 1500, 1501. 

 Artemis 1227, 1228. 



acetabulum 1230. 



alata 1229. 



1635 



