PLECTOPYLIS. 77 



The palatal armature is in two series ; the anterior series con- 

 sists of four thin horizontal folds, and the posterior series of six 

 horizontal folds, the first of which is very minute, the next four a 

 little broader and shorter than those of the anterior series, the 

 fourth or fifth a little defiexed posteriorly, and the sixth very 

 small and thin (see fig. 27 g\ The specimen shown in figs. 27 a-e 

 is in Mr. Ponsonby's collection, the one depicted in figs. 27/ and g 

 is in my own collection, while that delineated in figs. 27 h-l also 

 belongs to Mr. Ponsonby, who informs me that it was obtained 

 from Mr. Hungerford, labelled P. plectostoma from Sikkim. An 

 immature specimen in my collection, with four whorls completed, 

 has the armature near the end of the fourth whorl and, except 

 being smaller, identical with that of a mature shell. A specimen 

 in the late Col. Beddome's collection, from the Naga Hills, labelled 

 with the MS. name P. minuta, Bedd., I also refer to the present 

 species; it is, however, a little smaller, measuring only 4 millim. in 

 diameter ; it is also a little more raised in the spire, and is more 

 shining and darker. 



78. Plectopylis hanleyi, Godwin- Austen. 



Helix (Plectopylis) hanleyi, Godwin- Austen, A. M . N. H. ser. 5, iv, 



1879, p. 164. 



Plectopylis hanleyi, Gude, Science Gossip, N. s. v, 1899, p. 240. 

 Plectopylis (Endothyra) hanleyi, Glide, op. cit. vi, 1899, p. 148. 



Original description : " Shell sinistral, depressedly conoid, 

 openly umbilicated, probably hirsute when young. Sculpture 

 coarse, irregular, transverse ridges. Colour uniform ochraceous. 

 Spire conoidal ; apex blunt, smooth. Suture well marked. 

 Whorls six, close-wound, convex ; aperture semicircular, di- 

 agonal ; peristome somewhat thickened, white, with a thin 

 callus on the parietal margin [wall(?)] not to the extent of a 

 ridge. 



"Major diameter, 5-5 ; minor diameter, 5 ; altitude, 3 millim. 



" Parietal vertical lamina simple ; palatal plicsB in two rows, 

 four long in front, four short behind, and one basal long. 



" This shell is very distinct ; it has somewhat the form of 

 P. plectostoma, but is not so angular on the periphery, while the 

 internal plication is quite different, besides being so much smaller 

 in size." (Godwin-Austen.) 



Hob. Sikkim? 



No figure of this shell has been published, and the only speci- 

 men known was in the collection of the late Sylvanus Hanley. 

 My endeavours to trace its whereabouts have proved unsuccessful. 



79. Plectopylis blanda, Gude. 



Plectopylis blanda, Gude, Science Gossip, N. s. iv, 1898, p. 264, 

 fig. 70 ; ibid. Journ. Malac. vii, 1899, p. 34, fig. 11. 



