VIVIPARA. 85 



170. Vivipara naticoides (Theobald). 



Vivipara naticoides (Theobald), J. A. S. B. xxxiv, 1865, pt. 2, p. 274, 

 pi. 9, figs. 1, 2, 3 (as Paludina naticoides) ; H. & T., C. I. pi. 76, 

 figs. 1, 4, 



Original description : Testa turbinata, snb-polita, solida, pallide 

 flavescente cornea ad peripheriam carina rnunita ; marginibus 

 callo junctis, callo coluroellari non raro valde incrassato, 

 uinbilicum obtegente. 



Alt. 33, cliam. 22 mm. (taken from fig. 1 in Conch. Ind.). 



Alt. 34-5, diam. 24 mm. (taken from fig. 4 in Couch. lud.). 



Hob. Shan States. 



Var. concolor (Nevill), Hand List, pt. 2, p. 25. 



Of a light, uniform, olive-green colour ; whorls not so exserted 

 as usual, last one less swollen in proportion, more regularly and 

 globosely swollen, with a single, somewhat inconspicuous, raised 

 ridge at the periphery; aperture small, with the outer margin 

 regularly rounded. 



Alt. 25-75, diam. 18 mm. 



Hob. Upper Salween (type) (Theobald). 



Yar. carinata (Theobald), torn. cit. p. 27-3. 



Original description: Var. carinata. Carinis quatuor fortissimis 

 supra munitur, et infra peripheriam sex vel quinque laBvioribus ; 

 colore albido ; epidermide flavescente, fasciis nonuullis castaueis 

 interdum ornata. 



Ail:. 35, diam. 25 mm. 



Hob. Shan States. 



" These two varieties pass into each other, but the peculiar 

 columellar callus is pretty constant in all specimens. But for 

 this character, some of the smooth variety might be referred to 

 P. bengalemis, which is an extremely variable species. 



"The strongly corded var. is well marked, but I have preferred 

 taking the smooth shell as the type of the species, and have 

 regarded the keeled individuals as hypertrophied, placing the 

 greatest value, as a specific character, on the coiumellar callus, 

 occurring in both varieties." 



Var. fasciata (Theobald), torn. cit. & Cat. Moll., Ease. E, p. 34. 



Original description: Varietas fasciata, fasciis duabus castaneis 

 ornatur, htic superperipheriali, ilia juxta suturam posita. Anfractu 

 ultimo tertia notes t a carina paulum remota. Callo flavescente, 

 ore interior! coerulescente. Anfractibus (i. 



Alt. 36, diam. 27*5 mm. 



Hob. Shan States. 



