Vol. Ill, part 1, issued September 2dth, 1914. 



SOME SOUTH AFRECAN MARINE SHELLS. ] 



Descriptions of some South African Marine 



Shells. 



By 



Ed^ai- A. <^mitli, I.S.O. 



With Plate I. 



In a collection of shells, mostly from Natal, kindly sub- 

 mitted to me for examination by Mr. H. C. Burnup, five 

 species appear to be undescribed, and therefore I have drawn 

 up the following descriptions of them, and at the same time 

 made some remarks on two known forms of the genus 

 Tivela. 



Mangilia shepstonensis n. sp. PL I, fig. 1. 



Testa parva, turrita, cerea, circa medium anfractus ultimi 

 linea rufa interrupta cincta ; anfractus 6 ; superiores Iseves 

 (? detriti), convexi, casteri planiusculi, superne rotunde 

 tabulati, costis circiter duodecim leviter obliquis instructi, liris 

 spiralibus (in anfr. penult, tribus, in ultimo ad tredecim) 

 supra costas subnodulosis cincti, inter liras striis spiralibus 

 et lineis increment! minute decussati ; apertura angusta, 

 spira paulo brevior; labrum extra valde incrassatum, macula 

 rufa ornatum, prope sinum conspicuura superiorem tuberculo 

 parvo munitum ; columella rectiuscula, callo tenui induta. 



Longit. 4^, diam. 2 mm. 



Hab. — Port Shepstone (Burnup). 



The apical whorls are large for so small a shell. Two 

 specimens have been examined, and one of them has the spire 



VOL. 3, PART 1. 1 



