GASTROl^ODA (PULMONATA OPERCULATA.) Moll, 83 
Pterocyolos mmdaiensis, sp. n., Bock, P. Z. S. 1881, p. 634, pi. Iv. fig^ 8, 
Miudai, Amontai district, Borneo. 
Cyclosuras, g. n. Shell only spiral at the top, simply arcuated, some- 
what like Lituites or an exaggerated Uhiostoma ; aperture circular, oper- 
culum multispiral, externally flat, internally deeply concave. C. marici, 
sp. n., Mayotte Island, Comores. Morelet, J. de Conch, xxix. pp. 237-239, 
pi. X. fig. 8. 
Alycceus montanus, sp. n., Sikkim, and hung erf or dianus, sp. n., Formosa ; 
Nevill, 1. c. p. 149, the first pi. vi. fig. 6. 
Alycceus pilula (Gould), Southern China, its sculpture; Gredler, JB. 
mal. Ges. viii. p. 129. 
PuPINIDiE. 
Coptochilus sumatranus, sp. n., Dohrn, Nachr. mal. Ges. 1881, p. 65, 
Singalang, Sumatra. 
Cataulus tortuosus (Chemnitz) from the hills N.E. of Trevandrum, 
2000 feet. South India ; Nevill, 1. c. p. 149. 
Pupina epliippium, sp. n., Gredler, JB. mal. Ges. viii. pp. 28 & 112, 
pi. vi. fig. 1, Prov. Hunan, China. 
Pupina pulchella, sp. n., Mollendorjff, JB. mal. Ges. viii. p. 309, Lofu- 
shan Mountains, Canton. 
Pupina guimarasensis, sp. n., Guimaras, and hung erf ordiana (Nevill), 
Hsaddan Koo, Salween Valley ; Nevill, 1. c. p. 148, the latter pi. vi. fig. 6. 
Pupina rufilahris and turgidula, spp. nn., Dohrn, Nachr. mal. Ges. 1881, 
p. 66, Singalang, Sumatra. 
DlPLOMMATINID^l!;, 
Diplommatina hung erf ordiana, sp. n., Formosa, and japvoensis, sp. n., 
India : Nevill, 1. c. p. 150 (the latter figured as sherfaiensis, J. A. S. B. 
1875, pi. iv. fig. 5). 
Moussonia paxillus, sp. n., Gredler, JB. mal. Ges. viii. pp. 29 & 112, 
pi. i. fig. 7, Prov. Hunau, China. 
Ilagenmulleria, ? g. n., very small, found in the alluvial deposits of 
the coast of Oran ; Bourguignat, Monogr. Pechaudia, &c. 
CYCLOSTOMATIDiE. 
Cyclotopsis ornatus\_-a\ sp. n., H. II. Godwin-Austen, P. Z. S. 1881, 
p. 257, pi. xxviii. fig. 5, Socotra. 
Cyclotopsis duhia, sp. n., Morelet, J. de Conch, xxix. p. 236, pi. x. fig. 6, 
Mayotte Island, Comores. 
Otopoma nalicoides (Reel.), halfouri, complanatum, conicum, and turbi- 
natum, spp. nn., and clathratulum (Reel.) varr. nn. socotrana and minor, 
all from Socotra ; Godwin-Austen, 1. c. pp. 252-255, pi. xxvii. figs. 1-4, 
and pi. xxviii. figs. 1 & 2. 
Lithidion marmorosum, sp. n., id. 1. c. p. 256, pi. xxviii. fig. 6, Socotra. 
Tropidophora [rather Lithulion\ socotrana and halfouri, spp. nn., id. 
1. c. pp. 255 & 256, pi. xxviii. figs. 3 & 4, Socotra.- 
1881. [voL. xviii.] 
B 14 
