1870. ] MR. H. ADAMS ON CHINESE SHELLS. 377 
5. Descriptions of Ten New Species of Land and Freshwater 
Shells collected by Robert Swinhoe, Esq., in China and 
Formosa. By Henry Apams, F.L.S. 
(Plate XXVII.) 
1. Hexix (PLecrorrorts) curistin£, H.Ad. (Plate XXVII. 
figs. 4, 4a.) 
H. testa late et profunde umbilicata, sinistrorsa, tenui, subdiscoidea, 
oblique irregulariter plicato-striata, sub lente minutissime granu- 
lata, albida, supra strigis diffusis fulvis ornata, ad peripheriam 
albo fasciata, infra fulvo cingulata; spira subplanata, sutura 
mediocriter impressa ; anfr. 6, convewiusculis, lente accrescentibus, 
ultimo antice breviter descendente, angulato, basi convexiore ; um- 
bilico conico, anfractus usque ad apicem exhibente, intus fulvo ; 
apertura obliqua, lunari, margine dextro expansiusculo, basali 
incrassato, expanso. 
Diam. maj. 25, min. 22, alt. 12 mill. 
Var. carinifera. Minor, anfractu ultimo acute carinato ; umbilico 
minore. 
. ih 
Hab. Ichang and Fungsiang gorges, China. 
2. Hexrx (PLEcToTROPIS) MARIELLA, H. Ad. (Plate XXVII. 
fig. 5.) 
H. testa aperte umbilicata, depresso-lenticulari, tenui, subarcuatim 
irregulariter rugose striata et sub lente minutissime granulata, 
pallide fulva ; spira paulum convexa, sutura marginata; anfr. 44, 
ultimo breviter descendente, carinato, carina acuta, compressa, 
albida, basi convexiore; umbilico mediocri, profundo ; apertura 
perobliqua, angulato-ovali; perist. expanso, albido, marginibus 
proximis, callo arcuato tenui junctis, basali vix incrassato. 
Diam. maj. 18, min. 16, alt. 74 mill. 
Var. aquila. Minor, fulva; spira elatiore, anfractu ultimo minus 
convexo. 
Hab. chang and Fungsiang gorges, China. 
3. Hexix (AcustA) previsprra, H. Ad. (Plate XXVII. fig. 6.) 
H. testa anguste umbilicata, depresso-orbiculata, pertenui, fragili, 
Sulvo-cornea, pellucida, oblique striata; spira brevi, apice obtuso, 
sutura impressa ; anfr. 5, subplanatis, ultimo antice non descen- 
dente, carinato, subtus tumido ; apertura lunari, margine dextro et 
basali vix expanso, columellari dilatato, reflexo, umbilicum semi- 
tegente. 
Diam. maj. 17, min. 15, alt. 11 mill. 
Hab. Ichang gorge, China. 
4. Hexix (Acusta) nora, H. Ad. (Plate XXVII. fig. 7.) 
H. testa perforata, depresso-globosa, tenui, rugose striata, fulvida ; 
