M0LLU8CA. 
567 
b. Species from Northern Asia ' ^ 
Helix maachi (Gerstfeldt), var., PfeifTor, Novitat. iii. p. 496, pi. 107. 
figs. 3 & 4. 
c. African species : — 
Helix hypocrita, sp. ii., H. hcrtholdiana (Pfr.), H. gorgonarum, sp. n., these 
three belonging to ; leptostyla, n., belonging to j H. vis-- 
geriana, sp. n., and fogomsis, sp. n., both belonging to Hemicycla, described, 
with notes on the colours and varieties of H. advena (Webb) and setia 
(Albers), by H. Dohrn, Mai. Blatt. xyi. pp. 1-8. These species are from the 
Cape-Verd Islands. 
Helix pilifera, sp. n., from Abyssinia, described by E. v. Martens, Mai. 
Blatt. xvi. p. 209. 
Helix unidentata (Ohemn.). Several varieties collected at the Seychelles 
described by E. v. Martens in v. der Decken’s Reisen in Ost-Afrika, vol. iii. 
pp. 56-68, pi. 1. figs. 4 a-e. 
\_Ampelita] Helix subsepulcralis (Crosse, 1808), Crosse, Journ. Conch, xvih 
p. 391, pi. 12. fig. 3, Madagascar. 
Helix votiva, sp. n., Crosse, Journ. Conch, xvii. p. 422, Madagascar. 
d. East-Indian species : — 
Helix (Arionta) elatior (IVIartens) and H. (Corilla) pettos (Martens), Pfeiffer, 
Novitat. iii. pp. 461, 462, pi. 101. figs. 4-6 and 7-9. 
\Plectopylis~\ Helix perarcta (Blanf.), from Ava, and karenorum (Blanf.), 
from Pegu, Pfeiffer, Novitat. iii. pp. 602, 603, pi. 108. ffgs. 13-16 and 16-18. — 
H. (Plectopylis) andersoni^ sp. n., Blanford, Proc. Zool. Soc. 1809, p. 448, Ava 
and Yunnan. 
[Trachid] Helix propinqua (Pfr.), from Poona, Pfeiffer, Novitat. iii. p. 498, 
pi. 107. figs. 16-17. 
Helix catostoma, sp. n., Blanford, h c. p. 447, Ponsee in Yunnan. 
Ampelita {Helix) bigsbyi, sp. n., Tryon, Am. Journ. Conch, v. p. 110, pi. 10. 
fig. 3, Ajidaman Islands ; allied to unicolor (Pfr.). 
{Obbd] Helix marginata (Miill.) and sororctda (Martens), and an interme- 
diate form, are mentioned by E. v. Martens, Mai. Blatt. xvi. p. 87. 
e. Australian species : — 
Patula biretrdcta, sp. n., Mousson, Journ. Conch, xvii. p. 67, pi. 4. fig.l, Syd- 
ney ; allied to sericatida (Pfr.). 
Helix {Plectotropis ?) howardi, sp. n., Angas, Proc. Zool. Soc. 1869, p. 48, 
pi. 2. fig. 9, South Australia, 460 miles north of Adelaide. 
Helix bipaHita (F(5r.). Varieties figured by Pfeiffer, Novitat. iii. pi. 107. 
figs. 1, 2. 
Helix informis, sp. n., Mousson, Journ. Conch, xvii. p. 69, pi. 4. fig. 3, Port 
Mackay, Australia. Near H. fraseri (Gray). 
Helix cunninghami, var. minor, Rockhampton, and var. eompressa, from 
Australia,” Mousson, ibid. p. 60. 
Helix pachystyla (Pfr.), with var, nov, dcemelii, H. pomum (Pfr.), 
hris, sp. n., dxxdjanellei (Guillou) — pachystyloides (Cox), are described by 
Martens; they form a remarkable Australian group of Helix. Mai. Blatt^ 
