40 LAND ANB FRESHWATER 



Pttpina PEGtTENSis, Beiison. (Plate LXIX. figs. 3, 3rt, 3 />, 3 c, 3 d.) 



Pujnna peguensis, Bs. A. M. N. H. vol. vi. p. 192 (1800). 



Conch. lud. p. 4, pi. vii. fig. 6, as P. blaufordi. 



Theobald, Cat. Couch. Ind. p. 41. 



Pfr. Mou. Pneum. vol. iii. p. 95. 



Nevill's Haud-list, p. 300 (type) : Shuay-Gheen, Burmah (coll. 

 Captain Berdmore, 1878), and Zwagabin. 



Specimen drawn is from Kama on the right bank of the Irrawaddv 

 (coll. W. T. Blanford). 



Original description : — " Testa imj'ierforata, suhglohoso-ovata, lawi- 

 gata, jiolita, pellwida, cornea ; spina convexo-conica, apice acutiusculo, 

 sutura calloso-tnarginata ; anfractibus 4^, ultimo spiram sujjcrante, 

 antice breviter ascendente, ad basin foveato ; apertura subverticali, 

 sursum spectante, circulari, angulo acuto superne adjecto, callo p>arietali 

 superne et lamella iyitrante munita ; columella p>rofunde incisa, cana- 

 lem ea'tus progredientem lingua lata superiore ohtectum callisque 

 duobus e.vtus divergentibus marginatum exidbente ; peristomate expan- 

 siusculo ; margine dextro, supra medium arcuate, basalique crassius- 

 culo ohtusis. 



"Long. 6, diam. 3| mill. 



" Habitat in regione Peguensi. Mus. 8oc. Asiat. Calcuttensis. 



" Closely related to the Tenasserim Pupiaa anda, B., but, inde- 

 pendently of its smaller size, differing in form, proportions, trans- 

 lucence, and absence of sculpture." 



PtrpiNA LiMiTANEUS, H. sp. (Plate LXIX. figs. 4, 4a, Ab.) 



Locality. Eastern frontier of Burmah and Siam {Col. R. Wood- 

 tliorpe). 



Shell ovately conoid, shining polished surface ; sculpture none ; 

 colour pale ochre to dull whitish, black -where parts of animal 

 remain, probably black when living ; spire conic, side convex, 

 apex subobtuse; suture shallow, linear ; whorls 5|, the last twice 

 as high as the spire ; aperture circular, at suture a vertical slit, 

 formed by the thickened upper margin and a short vertical lamella 

 (fig. 4 b) ; columella wuth a deep narrow incision seen from front, 

 the frontal flap narrow ; peristome thick and obtuse. 



Size : major diam. 3*0, alt. axis 5'0 mm. 



Smallest „ 3-0, ,, 4-5 mm. 



This species is nearest to P. peg^iensis, but it is smaller, different 

 in form, proportion of whorls, and the columellar slit is narrower. 

 There were about a dozen specimens in the collection, obtained on 

 the march to the Siam boundary delimitation in 1895 from base of 

 the Shan Hills, east of Ava. Li Mr. W. T. Blanford's collection, 

 No. 39, there are four specimens, rather larger, but with a similar 

 peristome and columellar groove, alt. 5*5 mm. 



