194 Journal of the F.M.S. Museums. [Vol. X, 



Pachylabra stoliczkana (Nevill) . 



1877. AmpiiUaria stoliczkana, Nevill, Cat. Moll. Ind. Mus., fasc. K. p. 11. 

 1881. Ampullaria stoliczkana, id., .lourn. As. Soc. Bengal L (2), p. 153, pi. vl, 



Jig. 11. 

 1885. Ampullaria welleslyensis, de Morgan, Bull. Soc. Zool. France, K, p. 419, 



pi. viii, fig. ];5. 



1891. Ampullaria wellesltjensis, Moellendorf, op. cit., p. 340. 



1911. Pachylabra lurbinoides, Kobelt (in part), op. cit., pp. 95 ii)2, pi. xl, 



tigs. 6, 7. 

 1911. Pachylabra welleslyensis, id., op. cit., p. 91, pi. xxxix, tigs. !>, 6. 



Two specimens in tlie collection received from the 

 Malay States agree closely with the types of Stoliczka's 

 species, which are in the Indian Museum. They also seem 

 to me to agree sutiiciently closely with de Morgan's figures 

 of his A. welleslijensis from the same locality, allowing for 

 the fact that the figures are based on a specimen m which 

 the apical part of the spire had been completely destroyed. 

 Further they have a close resemblance in outline to two of 

 Kobelt's figures of P. turbinoides, namely those cited above, 

 one specimen resembling each figure. 



As Stoliczka's original description is difficult ol access 

 I quote it in extenso : — 



" Though I very much doubt if the Penang form can 

 be really distinct from the many described species, still I 

 find it impossible to class it even as a variety of any of 

 the species I know. Its substance, shape of the whorls, 

 etc., distinguish it at a glance from all the forms I have 

 grouped together as A. conica. It a good deal resembles 

 Reeve's fig. 37 A. turbinoides (Australia) ; it is, however, 

 more oblong, ovate and contracted in shape, with sombre- 

 brown, polished coloration. In these latter respects it 

 closely resembles A. polita from which its shape and 

 produced spire easily distinguish it. A. callistomo, Mori. 

 (Ser. Conch., Livr. IV, Pt. 13, fig. 7 ; Cambodia), is still 

 closer, though indeed this seems to me to be scarcely more 

 than a small variety of A. polita. Reeve's fig. 96 of his 

 A. javanica (Java) may perhaps prove to belong to one 

 and the same species ; the typical figure is apparently taken 

 from an immature shell, and it is therefore impossible to 

 decide without actual comparison. 



Ovately oblong, with six regularly produced whorls, the 

 last not swollen (or subangulate) above as in A. polita and 

 A. callistoma ; scarcely imibilicate ; aperture contracted 

 and produced, marked interiorly with faint interrupted 

 bands, slightly effused at base ; epidermis polished, brown. 



Long. 54, diani 41, long. : apert. 36, diam. 23.5 mil. 



(7) Penang ; coll. Stoliczka. Three lull-grown and 

 four young specimens." 



