MQLLUSCA. 227 
given descriptions of the shells and of the anatomy, from which jt would 
appear that the two species are distinct ; 1. c. pp. 66-80, pis. 4-6. 
Helix zonella, Pfeiffer, Proc. Zool. Soc. 1864, p. 604, from Crete. 
North African species : — 
Helix cottyi, Morelet, Journ. Conch. 1864, p. 155, from the border country 
between Marocco and Algeria. — Helix wanieriana, Bourguignat, Moll. terr. et 
fluv. de la Sahara, from the south of Tunis j H. duveyriana, Bourguignat, 
ibid., from the Oasis Mecliounech near Biskin. 
Helix eJirenhergi, var. chilemhia, Bourguignat, Moll. nouv. iv. p. 85, pi. 12, 
from Alexandria ; a variety with the lip of the aperture much thickened. 
Helix harhara (L.) is declared by M. Bourguignat to be identical with 
Bulimus ventricosusj Drap. \Helix{Coclilicella) mntricosa\ and not wiihBulhnus 
jeannoti, Tewer, as has been believed by several other authors. Malac. Algdr. 
iii. p. 12 & i. p. 86. 
Madeiran species : — 
M. de Paiva has described and figured the following species in Pfeiffer’s 
Malacolog. Blatt. 1864 : H. yaleata (Paiva), p. 51, pi. 2. fs. 1-3 ; H. tetricq 
(Paiva), p. 53, fs. 4-7; H. delphimdoides (Lowe), fs. 14-17; JE[. coronata 
(Lowe), p. 55, fs. 8-11; the latter species has been known in a fossil state 
only. M. de Paiva found specimens alive, although slightly different from 
the fossil ones. 
West Asiatic species \ — 
M. Bourguignat has described three species in Moll. Nouv. iv. ; Helix 
hurdistana, p. 87, pi. 13. fs. 1-4, from Kurdistan ; H. michoniana, p. 89^ 
pi. 14. fs. 5-8, from Kurdistan and Diarbekir; H. escJieriana (Mousson, MS.), 
p. 105, pi. 15. fs. 8-11, from Mesopotamia, allied to H guttata (Olivier), 
but with an open umbilicus, showing a similar relation to that species, as 
H. campesina to H. alonetisis. 
Central Asiatic species : — 
Helix plectotropis, Martens, Mai. Blatt. p. 114, pi. 3. fs. 3-5, jfrom the 
mountain Thianschan ; somewhat similar to H nummus and H trichotropis ; 
H mnenowiy Martens, 1. c, p. 115, pi. 3. fs. 6-8, from the Thianschan, a 
Xeropliila near H. destituta, Charp. 
Chinese and Japanese species : — 
Helix arcasianay Crosse etDebeaux, Journ. Conch, xi. 1863, p. 386, and xii. 
1864, p. 310, pi. 12. f. 4, from Shanghai ; near H. tourannensis, Eyd. et Sou- 
leyet. — H. yantaiensis, Crosse et Debeaux, 1. c. xi. 1863, p. 387, diid xii. 1864, 
p. 317, pi. 12. f. 2, from Yantai near Cheefoo, Northern China; a toothed 
species, somewhat resembling H personata. — H. tschefouensis, Crosse et De- 
beaux, 1. c. p. 318, pi. 12. f. 6—H. munieriana, Crosse, 1. c. xi. 1863, p. 387, non 
H. munieriana, Desh. = /T. shangliaiensis, Pfr. ; from Cheefoo in Northern 
China. — H frilleyiy Crosse et Debeaux, 1. c. xi. 1863, p. 387, and xii. 1864, 
p. 319, pi. 12. f. 3, from Ki-tsen-soo near Cheefoo. (=11. redfieldi, Pfr.) — H. 
primeana, Crosse, Journ. Conch, p. 284, from China? near H. pallasiana, Pfr.-r- 
Q 2 
