88 PEOCEEDINGS OF THE MALACOLOGICAL SOCIEir. 



This is the only instance araonp; the Australian Helices in which 

 the same species occurs on both sides of the continent. 



Helix (Chlokitis) millepunctata, n.sp. PI. YII. Pig. 11. B.M. 



Testa orbicularis, late umbilicata, tenuis, cornea, subpellucida ; 

 anfractiis 5 lente accrescentes, undique minute punctati, convexi, 

 sutura profunda scjuncti, striis incrementi tenuibus obliciue arcuatis 

 sculpti, ultimus ad poripheriam rotundatus, antice vix descendens ; 

 apertura oblique et late lunata, spira brevissima, ad apicem obtusius- 

 cula ; peristoma tenuc, parum incrassatum, anguste expansum et 

 reflexum, margine columellari pcroblicj^uo, paulo arcuato, superne ad 

 insertionem brevitcr dilatato. Diam.maj. 16, min. 13 mm. ; alt. 8*5 mm. 

 Apertura 6 alta, 7 lata. Uai. — Eaudin Island, N.W. Australia. 



This species has much the general aspect of II. delessertiana. 

 It is, however, flatter, and, of course, quite different in sculpture. 



Yar. Cassiniensis, PI, VII. Fig. 12. 



Testa typo minor, umbilico paulo angustiore, apertura magis 

 contracta, peristomate leviter crassiore. Diam. maj. 14-5, min. 

 10"5 mm. ; alt. 7 mm. Apertura 5 alta, 5 lata. Hah. — Cassini 

 Island, N.W. Australia. 



Although smaller, and differing from the type in the points referred 

 to, it seems advisable to consider this form as a variety, rather than 

 as a distinct species. 



Helix (Chlokitis) kectixabrfm:, n.sp. PI. VII. Fig. 14. P.M. 



Testa orbicularis, depressa, umbilicata, pallide fuscescens, sub- 

 granulata, epidermide scabrosa tenui induta; spira parum elata, ad 

 apicem obtusa ; anfractus 5 lente crescentes, convexi, sutura profunda 

 sejuncti, ultimus ad peripheriam rotundatus, vix angulatus, antice 

 leviter descendens ; apertura fere horizontalis, lunata ; peristoma tenue, 

 anguste expansum et reflexum, marginibus conniventibus, bamli 

 rectiusculo, columellari ad insertionem dilatato. Diam. maj. 13, min. 

 11 mm.; alt. 6 mm. Apertura 4 alta, 5"5 lata. Hah. — Parry 

 Harbour, N.W. Australia. 



A dead specimen devoid of epidermis does not appear nearly 

 so granular as fresh-living examples, although traces of the 

 granulation, especially upon the apical whorls, are discernible. 



Helix (Gonostoma) Battdinensis, Smith, B.M, 



The Conchologist, vol, ii. p. 97, fig. 

 Hah. — Baudin Island, N.AV. Australia. 



Helix (Gonostoma) Collingii, Smith. B.M. 



The Conchologist, vol. ii. p. 98, fig. 



Hah. — Baudin Island. 



This and the preceding species are two of the most interesting 

 discoveries among the land-shells of N.W. Australia and the adjacent 

 Islands made by Mr. AValker. 



