88 SYKES : NON-MARINE SHELLS FROM THE EAST INDIES. 



Albersia waigiouensis, n. ^i\ 



PI. ix, fig. 1 6. 



Tlif shfll now under consideration appears to l)e \videl\- distributed in 

 collections under the name of .1. i/fii/niJnfd. (). tV (1., and perhaps the most 

 serviceable method will be to diagnose it by eomi)arison with that s[X'(iL's. 



Shell differing from ^1. ijranidata in the following respects : shell moie 

 depressed in proportion to the width ; colour a little darker and a white zone 

 is present below the dark encircling band, with indications of another zone 

 above ; sculpture consisting of a very large number of minute spirals which, 

 cutting the lines of growth produce the effect of microscoj)ic granulation, 

 this marking gradually fades out towards the a[)ex, which is almost smooth ; 

 contiasted with .1. (jranulafa the shell differs in the presence of the dense 

 spirals and the absence of the coarse granulation on the last whorl ; the 

 mouth in the present species is twisted at the columellar junction and has 

 an obsolete tubercle. 



Diam. max. 47 millim. 



The habitat is Waigiou, and I believe all the records of A. (jranulata 

 from the Island belong to the present species, and not to the true A i/rannJafa 

 whcxse habitat is Port Dorey, New Guinea. 



Planispira (Vulnus, n. sect.) endoptyeha, Martens. 



var. depressa, n. var. 



Shell somewhat more flattened. 



Hub — Waigiou. 



This species was described by von Martens as a Helix from Batjan, 

 March, and Ternate ; I have a typical specimen said to have come from Obi, 

 and a more depressed form from Waigiou. Whether the Dorra-na compfa 

 of Henry Adams really belongs here, as has been suggested, it is hard to 

 sav ; the type does not appear to be in the British Museum. The species 

 is placed by Mr. Pilsbry under the genus Planiqnra in a separate group 

 with P. ■jxnrellana, Grateloup. P. endoptyeha appears to me to be well 

 worthy of a separate sectional name, being characterised by a thin deciduous 

 periostracum, and the remarkable indentations on the last whorl at the 

 periphery and also on the base, but, apart from these characters resembling 

 CrUfiiiiltha. To this group P. porrellana, and Helix infrada, Mrtns., probably 

 also belong. VufnU'< also recalls the Costa Rican ArereUia mameUi, Crosse. 



Planispira (Cristigibba) gebiensis, n. sp. 



PI. ix, figs. 7, 8. 



Shell moderately umbilicate, large, almost flat, slightly giljbous, crest behind 

 the lip small, closely covered with a hairy periostracum, lines of growth 

 obscure : whorls 5 (?), the apex broken ; colour in general dark-brown on the 

 last whorl, becoming lighter on the earlier whorls, with two white zones just 



