78 mil 
MOIXUSCA. 
Cyclophorus angolensisj sp. n., Dohrn, JB. mal. Ges. v. p 161, Angola. 
Cyclophorus P hildehrandti, ep. n., Martens, MB. Ak. Berl. 1878, p. 289, 
pi. i. figs. 1-3, Ukamba, near Zanzibar. 
Theohaldius, subg. n. Cyclophorus^ type C. annulatus (Troschel) ; Nevill, 
Handl. Ind. Mus. i. p. 275. 
Leptopoma rcepstorffianum, sp. n., id. 1. c. p. 280, Andaman Islands. 
Leucoptychia, g. n., differs from Leptopoma by the presence of nunierous 
transverse lamellar ribs ; operculum like that of Leptopoma ; arboreal. 
L. tissotiana^ sp. u.. New Guinea, Crosse, J. de Conch, xxvi. pp. 163 & 
164. 
Leptopomoides\j-matoides\ subg. n. for Cyclophorus halophilus (Bens.); 
Nevill, Handl. Ind. Mus. p. 273. 
Lagochilus warnef or dianus, sp. n., id. 1. c. p. 284, Andaman Islands. 
Cyclotus corpulentus, sp. n., E. A. Smith, Ann. N. H. (5) ii. p. 482, New 
Granada. 
Cyclotus houcardi, sp. n., Angas, P. Z. S. 1878, p. 73, pi. v, figs. 3 & 4, 
Costa Rica. 
Myxostoma (Troschel, 1847) agrees with Pterocyclus in the peristome, 
but differs by the thick horny operculum, the whorls of which have 
exteriorly lamellated margins. Lituus brevis (Martyn), Cyclostoma plan- 
orhulus (Lam.), and Pterocyclus albersi (Pfr.), and Cyclophorus {Myx.^ 
bathy[r'\rhaphe, sp. n., from Borneo, belong to this genus. E. A. Smith, 
P. Z. S. 1878, pp. 497-499, with woodcut. 
Pterocyclus rupestris (Bens.), var. n. ^mriensis, Pooroo, and insignis 
(Theob.), var. n. planorbioides, Kakhyeu [^Hills ; Nevill, Handl. Ind. 
Mus. p. 261. 
Pterocyclus (Spiraculum) mastersi (Theob.), var. n. simplex, Naga Hills, 
id. 1. c. p. 263. 
Spiraculum mastersi, sp. n., Blanford, J. A. S. B. xlvi. [1877], pt. 2, 
p. 313, Assam (figured in “ Conchologia Indica”). 
Pdpinidj:. 
Mascaria, g. n. Operculum ovate, with few whorls, nucleus situated 
near the base of the columellar margin. Shell '’rimate, elongate-ovate, 
nearly smooth ; aperture angulate above, peristome continuous, single, 
outer lip thickened and slightly expanded. Limited to Mauritius and 
Madagascar. For Megalomastoma croceum (Sow.), and litteratum (More- 
let). Angas, P. Z. S. 1878, pp. 310 & 311. 
Pupina hung erf ordiana, n., Nevill, Handl. Ind. Mus. p. 300, 
Asadden River. P. blanfordiana (Theob.) = artata (Bens.) var., P. 
blanfordi. Conch. Ind., = peguensis (Bens.) ; id. ibid. 
Oyclostomatid^. 
Cyclostoma {Tropidophora) caldwellianum, sp. n., Nevill, Handl. Ind. 
Mus. p. 305, Pouce Mount, Mauritius, semifossil. Note on C. barclay- 
.unum (Rv.) ; id. 1. c. p. 306.' 
Cyclostoma {Oto^foma) fmibriatum (f jam.), var. n. major and semisculpta. 
