44 THE NAUTILUS. 



ii INDEX TO CONCHOLOGISTS' EXCHANGE. 



INDEX TO GENERA AND SPECIES IN THE CONCHOLOGISTS' 

 EXCHANGE, VOLS. I AND II. 



Arnnicola porata, A. linjosa, A. cincinnatiensis, A. parva, II, 91 



Anatiua papyracea Say, II, 78 



Anceyia Pilsbry, u. subg. (Pristina Ancey being preoc- 

 cupied in Vermes), I, 26, 54 



Ancylus fuscus Adams ; Aucylus paralellus Hald., . II, 2 

 - Angasella Aucey, u. subg., type Helix cyrtopleura Pfr. ; 



Australia, ... ... II, 38 



Angitrema armigera Say, A. verrucosa Raf., . II, 93 

 Angrandiella Ancey, n. subg., type Helix angrandi 



Morelet; Andes of Peru, 1,20 



Anodonta gibbosa Say and A. couperiana Lea, . . I, 27 



Anodonta edentula Say, ..... II, 20 



Anodonta ferussaciana Lea, . . . . . II, 37 



Anodonta imbecilis Say ; Anodonta grandis Say, 11,21 

 Anodonta plaua, A. corpulenta, A. suborbiculata, . II, 36 

 Arion subfuscus and Helix hispida var. fusca in York- 

 shire, ..... . . I, 7 



Atlautica Ancey, n. subg., type Helix semiplicata Pfr. ; 



Madeira," . . 1, 54 



Averellia Ancey, n. subg.,=Coelospira Ancey non Hall, I, 54 



Batbyaxis, Ancey, n. subg., type Cwliaxis Layardi Ad. 



&Angas; Cape Colony, . ... 11,39 

 Bernuidia, Ancey, n. subg., type Helix Burmudensis 



Pfr. ; Bermuda I, 53 



" Bertia, Aucey, n. subg., type Nanina cambodjiensis 



Reeve ; Indo-China, ..... I, 53 

 Brazieri., Ancey, n. subg., type Helix velata Hombrou 



et Jacq ; Caroline Isls., . . . . . II, 22 



Bulimini found in Central Asia, ..... II, 5 



Burtonia Bourg., .... . II, 22 

 Bythinia tentaculata Linne, . . . . 11,80,114 



Bythinella obtusa Lea, .... II, 81 



Calostropha, Ancey, n. subg., type Helix Rafi'rayi Tapp.- 



Canefri ; New Guinea, . . . . . II, 3<S 



Campeloma subsolida, C. exilis. and C. ruf'a, . II, 66 

 Carychium exiguum Say, .... 1,6"); II, !I2, 115 



