SOUTH AFRICAN MARINE MOLLT^SCA. 203 



shells is very variable. There is, however, the same uniform, 

 light-brownish colour, and similar sculpture in all. 



The Helix johnii of Chemnitz, which appears in Tryon's 

 manual as a Eecluzia, and also in Mr. Hedley^s 'Marine 

 Fauna of Queensland,' is a very doubtful species. It was 

 placed by Gray^ in the genus Pu]ia, and by Ferussac- in 

 Cochlogena among the helicoids. 



Chemnitz describes the last whorl as subkeeled {" sub- 

 carinato"), a feature Avhich I have not observed in any 

 specimen belonging to the genus Recluzia. Moreover, it is 

 said to be snow white and bluish brown in places towards the 

 upper part. 



The original localities for the species quoted above are 

 Arabian Gulf for jehennei, off Mazatlan for roll audi an a, 

 New Caledonia for montrouzieri, and New South Wales 

 for hargravesi. 



This wide distribution does not, however, militate against 

 the identity of those forms, as pelagic species are often almost 

 world-Avide in their distribution. 



Epitonium macromphalus n. sp. PI. VII, figs. 14, 14 a. 



Testa parva, alba^ late umbilicata, depresse turbinata ; 

 spira elata ; anfractus 6-7 convexi, lamellis confertis nume- 

 rosis tenuissimis obliquis instructi ; apertura fere circular] s; 

 peristomium tenue, margine columellari leviter incrassato et 

 anguste reflexo. Diam. maj. 6, min. 5"25, alt. 5*25 mm. 



Hab. — Tongaat, Natal (H. Burnup). 



This species is remarkable for its depressed and openly 

 umbilicated form and for the close-set very delicate lamelUe 

 of growth. It may attain to larger dimensions, l^ut as with 

 most species of this genus (= Scalaria) it is impossible 

 to state whether a shell is full growai or not. 



1 ' Ann. Phil.,' 1825, vol. ix. p. 12. 



2 ' Tabl.-Syst.,' p. 61. 



