48 THE NAUTILUS. 
vi INDEX TO CONCHOLOGISTS’ EXCHANGE. 
Pleurocera alveare; P. undulatum; P. moniliferum ; 
P. canaliculatum ; P. troostii; P. lewisii; P. ele- 
vatum; P. neglectum, ; : : ' : 
Pleuroxia Ancey, new name for Angasella, which is 
preoccupied in marine shells; type Helix cyrto- 
pleura Pfr.; Australia, : : : 
Peecilostola Ancey, n. subg., type Helix Farrisi Pfr., 
Andes of Peru, é : 2 : 
Polygyrella polygrella Bld. & Cooper, var. montanensis 
Ancey (n. var.), 
Pomatiopsis lapidaria Say, . ; : : : 
Pristina Ancey, n. subg., types Hyalina Stearnsi Bld. ; 
H. Lansingi Bld.; North America, 
Pristiloma Ancey, n. subg., in place of Pristina Ancey, 
and Anceyia Pilsbry, non Anceya Bourguignat, . 
Pseudiberus Ancey, nu. subg., types Helix tectum-sinense 
Mart.; H. zenonis Gredler; H. plectotropis 
Mart.; and H. mataiensis Nevill ; China, 
Pupa corpulenta Morse, var. parietalis Ancey, var. nov. ; 
Utah, 
Rhysotina Ancey, n. subg., type Helix Welwitschi Mor., 
and H. hepatizon Gld. ; Island of Sao-Tome, 
Rhyssotopsis Ancey, n. subg., type Helix Haughtoni 
Benson ; Andaman Isls., J : : 
Saxicava rugosa Linn., 
Segmentina Wheatleyi Lea, 
Segmentina armigera Say, ; é ; ‘ ; 
Sheldonia Ancey, n. subg., types Helix Trotteriana 
Bens.; H. phytostylus Bens.; H. natalensis Pfr. 
and perhaps cotyledonis Benson ; S. Africa, 
Siliqua costata Say, and Solecurtus gibbus Spleng., 
Somatogyrus subglobosus Say and S. depressus Tryon, . 
Spherium suleatum Lam.; 8. solidulum Pr. ; S. striati- 
num Lam.; S. Jayanum Pr. . : : 
Spherium truncatum Linsley; S. occidentale Pr.; S. 
transversum Say, é : : $ : 
Sphincterochila Ancey, n. subg., types H. filia, Mouss. ; 
H. Boissieri Charp.; near the Dead Sea and N. 
Arabia, i 
( Zo be concluded in September number.) 
II, 94 
II, 38 
T, 20, 26, 54 
II, 80 
II, 91 
I, 20, 26 
I, 54 
