154 H. H. Godwin- Austen — Notes on Indian Land Mollusca. [No. 2, 



Helix (Plectopylis) minor, Godwin- Austen. Plate VII. figs. 3 and 

 3a. (No. 51 of MS. Stol.). 



Described in Annals and Mag. Nat. Hist., August 1879. Darjiling ? 



I give below a copy of the original description and add the dimen- 

 sions then omitted. I now also give magnified drawings of the hair- 

 like epidermal fringe in this species (fig. 3a) and in another allied to it, 

 also from Darjiling, P. pinacis (fig. 2a), in which it is seen how 

 greatly they differ, being regular and symmetrical in size and diameter 

 and perfectly rounded at the end in P. minor ; while in the other 

 it is irregular flattened and divided near the extremity into two or more 

 points, which are again split at the end. This distinction held good in 

 both young and old specimens and was not the result of age or weather- 

 ing. 



It may be interesting here to refer to Plate I, J. A. S., B., 1879, 

 where the epidermal fringe of P. brack y disc us is given, shewing another 

 and very distinct form of hairy fringe. 



Description. " Shell sinistral, openly umbilicated, discoidal, hirsute. 

 Sculpture coarse with irregular transverse ribbing, near the apex fine 

 and regular ribbing ; color pale umber, with regularly disposed broadish 

 transverse bars of sienna-brown : spire flat, only the first three whorls 

 slightly rising above the others ; suture shallow. Whorls five, sub- 

 angular on the periphery of the last, whicli has four distinct rows of 

 short hairs, entire at the point. Aperture oblique, slightly descending ; 

 peristome lunate, slightly flattened on the upper outer margin, but very 

 Little reflected, the inner margins connected with a distinct bridge on 

 the parietal side. The parietal vertical lamina is simple, with no dis- 

 tinct horizontal plica below it, as in macromphalus ; the palatal plicae 

 are six in front, four behind, the basal one in front thin, and longer than 

 the others." 



Major diam. 0*20 in., minor diam. 0T7 in. alt. axis 009 inch. 



„ „ 50 mm. „ „ 4"5 mm. ,, „ 23 mm. 



The animal in Stoliczka's drawing now before me is coloured dark 

 brown, and being a young shell is enlarged. In .my MS. notes I find a 

 specimen of P. macromphalus from Shillong in the Khasi Hills thus 

 described : " Animal with lower tentacles represented by two small 

 hemispherical protuberances, body all. pale with tinge of orange on 

 head and neck : extremity of foot pointed." I must now correct an 

 error in my paper in the Annals and Magazine of Natural History for 

 1879, where I say that in Stoliczka's drawing it is represented of a 

 pink color. 



The animal of P. plectostoma, Bs., from Teria Ghat, is thus de- 

 scribed in my field book : — "Animal : foot short, of a 2>ale brown yellow 



