180 
MOLLUSCA. 
Helicid^ ; sub-fam. Vitrininae, marginal teeth aculeate ; MacrocycUs^ 
Zonites, Vitrina, Limax. 
Helicinas, jaw simple, marginal teeth quadrate : — 
(1) Jaw without decided ribs on its anterior surface; Patulay 
Hemitrochus {Helix varians), TehennophoruSy Holospira, HelU 
codiscusy Ferussacia, Ccecilianellay Stenogyray Pupa, VertigOy 
Strophia. 
(2) Jaw with decided short vertical ribs to its anterior surface ; 
Arioriy AriolimaXy Prophysaoriy Binneyitty Hemphilliay Palli- 
fertty and Helix (with 17 sub-genera). 
(3) Jaw with delicate distant ribs to its anterior surface, usually 
running obliquely to its median line ; Cylindrellay Macro- 
ceramuSy Bulimulus. . 
Orthalicinae, jaw composed of distinct plates, free and imbricated 
below ; LiguuSy OrthalicuSy Punctum. 
Succineinae, jaw with an accessory quadrate plate ; Succinea. 
Veronicellid^ ; Veronicella. 
The jaw and radula of all these are illustrated by woodcuts, the teeth 
of many species figured in the plates ; P. Ac. Philad. 1875 (also as notes 
on Am. land-shells, ii. pt. iii.), pp. 140-243, pis. i.-xviii. 
YERONICELLIDiE. 
[yeronicella] Vaginula. The known species named, and descriptions 
of V. olivacea (Stearns) and paranensis (Burmeister) reproduced ; P. 
Fischer, J. de Conch, xxiii. pp. 63-67. 
Vaginula wallaciiy sp. n., Issel, Ann. Mus. Genov, vi. [1874] p. 385, 
pi. iv. figs. 1-3, Sarawak, Borneo. 
TeSTACELLIDJjJ. 
Helix (Bhytida) sheridaniy sp. n., Brazier, P. Z. S. 1876, p. 33, pi. iv. 
fig. 7, N. E. Australia. 
Diplomphalus fahriiy H. Crosse, sp. n., J. de Conch, xxiii. p. 136, pi. vi. 
fig. 1 ; D. megii (Lambert) var., id. 1. c. p. 138, pi. vi. fig. 2 : both from* 
New Caledonia. 
Glandina truncata (Say). Central tooth ; Binney, Ann. Lyc. N. York, 
xi. p. 167, pi. xiv. fig. P. 
Streptostyla sargiy sp. n., Crosse & Fischer, J. de Conch, xxiii. p. 225, 
Guatemala. 
Spiraxis incerta{^-us] (Mouss.) ; Pfeiffer, Novitat. iv. pi. cxxxiii. figs. 12 
& 13, South America. 
Streptaxidjj. 
Streptaxis rimatus (Pfr.) and recluzianus (Petit) =:= monrovta (Rang, 
as Helix') \nohiliSy Gray] varr. ; Dohm, Mai. Bl. xxii. pp. 203-205. 
Streptaxis uberiformis (Pfr.) figured ; J. de Conch, xxiii. pi. vii. fig. 8, 
South America. 
Scolodonta, subg. n. of Streptaxis ; shell similar to that of Hyalinay but 
