10 SUCCINEA §. 2. 



15. S. semiserica Gould. ^ 



T. fragilis, ovalis, a tergo depressa, postice straminea, 

 antice albido-sericea, longitudinaliter plicoso-striata ; anfr. Sy^, 

 ultinius maximus; apertura ovata, patula, faciem inferiorem 

 fere adaequans. — Long. Yg, ^^^- Vio? alt. ^0 pol'- (G.) 



Siiccinea semiserica Gould in Vroc. Bost Soc. 11. (1846.) p. 100. 

 Habitat Tavoy Birmanorum, in hortis. 



Obs. «Its shape is like S. tigrina Fer., and it is well characterized 

 by the peculiar silky-white or pearly surface of the anterior half of 

 the shell.» 



16. S. Taylori Pfr. 



T. ovato-conica, solidiuscula, striatula et plicata, nitida, 

 diaphana, rubello-fulva ; spira convexo-conica, apice minute 

 papillata; anfr. 3, penultimus convexus, ultimus rotundatus, 

 ^/3 longitudinis vix aequans; coiumella subverticalis , superne 

 reflexiuscula ; apertura obliqua, ovalis, superne vix angulata, 

 undique incumbens; perist. simplex, margine dextro substricto, 

 superne curvato. — Long. loy^, lat. 6^2, alt. 5 mill. Ap. 7 

 mill. longa, 4 lata. (Mus. Cuming.) 



Succinea Taylori Pfr. in Proc. Zool. Soc. 1851. 

 Habitat ad Singapore (Taylor). 



17. S. orientalis Benson. 



T. ovato-acuminata, solida, confertim striata, diaphana, 

 parum nitida, lutescenti-cornea; spira conica, apice acutius- 

 cula; anfr. Sy^ convexiusculi, ultimus % longitudinis sub- 

 aequans; columella callosa, substricta, parum recedens; aper- 

 tura obliqua, irregulariter ovaHs; perist. simplex, rectum, mar- 

 gine dextro levissime arcuatp. — Long. 11, diam. 6, alt. 4 

 milL Ap. 6^2 milL longa, 4 lata. (Mus. Benson.) 



Succinea orientalis Bens. in Ann. and Mag. 1851. Mart. p. 262. 

 Habitat prope Macao Chinae (Cantor). 



18. S. subrugata Pfr. 



T. conico-ovata , tenuis, levissime subrugata, vix nitidula, 

 quasi pruinosa, rubello-cornea ; spirabrevis, acutiuscula; anfr. 

 3 (cum apiculo fusco), penultimus subconvexus, ultimus sub- 

 inQatus, % longitudinis vix superans, basi attenuatus; colu- 

 mella substricte recedens; apertura obliqua, subtruncato-ovalis, 

 ubique incumbens; perist. rectum, margine dextro levissime 

 arcuato. — Long. 11, laL 7, alt. 5 mill. Ap. 77^ mill. longa, 

 infra medium 5 lata. (Mus. Guming.) 



Succinea subrugata Pfr. in Proc. Zool. Soc. 1851. 

 Habitat in insuUi Borneo. 



