182 
MOLLUSOA. 
H. {N) shisha, id. ibid, fig, 3, allied to plicatula (Bens.)’/ the animal of 
which is described, Moyong, north side of Khasi Hills : spp. nn. 
[^Nanind] Helix undosa, var. (Blanf.), Shan Hills, and sisparica (Blanf.), 
Nilgherries ; Hanley & Theobald, Conch. Ind. pp. 45 & 46, pi. cxi. figs. 2, 
3 & 6, pi. cxii. figs. 4-6. 
[^Nanind] Helix ,weinhauffiana (Crosse, 1863) = crossii (Pfr., 1862),, 
var. ; Morelet, Series Conch, iv. p. 245. H. pumicata^ Siam, and bocourtiy 
Cambodia, spp. nn., id. 1. c. pp. 248 & 249, pi. xii. figs. 2 & 9- 
Thapsia indecorata (Gould). Note by Dohrn, Mai. Bl. xxii. 
p. 205. 
Macrochlamys sinica, sp. n., E. von Martens, JB. mal. Ges. ii. pp. 214 
& 215, Western Mountains, near Peking. 
. ( — ) Helix vitrinoides (Desh., 1830) = pedina (Bens.) ; Nevill, J. A. S. B. 
(n.s.) xliv. pt. 2, p. 104. 
Nanina {Macrochlamys^ tersa and ? macdougalli, spp. nn., Issel, Ann. 
Mus. Genov, vi, pp. 399 & 400, pi. v. figs. 1-4 & 9-12, Borneo. 
Hyalina. The species allied to H. crystallina (Miill.) are again dis- 
cussed by S. Clessin ; he distinguishes H. contracta (Westerl.) = crys- 
tallina (Reinh.), probably peculiar to N. Europe, and H. crystallina 
(Miill. ?, Bourg.), of which subterranea (Bourg.) is a var. ; JB. mal. Ges. 
ii. pp. 25-36, pi. ii. figs. 1-3. 
Hyalina ? lowi and perlucida, spp. nn., Issel, Ann. Mus. Genov, vi. 
[1874], pp. 401 & 402, pi. v. figs. 16-19 & 20-23, Sarawak, Borneo. 
Hyalina argentina (Strobel) ; Strobel, Mat. malac. Argent, pt. iii. pi. i. 
fig. 1. 
Zonites cerinoideus (Anthony). Foot, jaw, and radula ; Binney, Ann. 
Lyc. N. York, xi. p. 169, pi. xiii. fig. p, allied io^. ligerus (^scy). 
Zonites algirus (L.). Apatopiy given, with peculiar attention to the 
nervous system, by H. Sicprd, Ann. Sc. Nat. (6) No. 2, pp. 1-86, pis. 
iv.-vii. The tentacular - nerve is considered to be probably olfactory ; 
the retina is of cellular composition, the black pigmept is not uniformly 
spread over the cjioroidea, and the optic nerve is quite distinct in origin 
from the tentacular nerve. The salivary glands form a ring round the 
oesophagus. There are interorganic cavities, true lacunae, into which the 
blood vessels are opened, and through which the blood circulates. Vesi- 
culsB multifidae, fiagellum, and arrow-bag are absent ; instead of the 
former there is a gland enveloping the vagina like a sleeve, and the 
spermatophore is developed in the under broader part of the vas 
deferens itself. Male and female orifices are close together, surrounded 
by a common sphincter, but there is no common orifice. The border 
surrounding the lateral edges of the foot is cleft in its whole extent sd 
the hinder end, and in this part the glandular elements predominate. 
Zonites hamelianus, Crosse (1874); J. de Conch, xxiii. p. 216, pi. ix. 
fig. 1, New Caledonia. 
Macrocyclis euspira (Pfr., as Helix). Jaw and radula ; Binney, P. Ac. 
Philad. 1875, p. 247, pi. xxi. fig. 3. 
Trochomorpha cressida (Gould) ; Ann. Lyc. N. York, xi. p. 168, pi. xvi. 
fig. H. 
Trochomorpha ? angulata^ sp, n., Issel, Ann. Mus. Genov, vi. p. 405, 
