iS SOWERBY : MARINE SHELLS OF S. AFRICA. 



Monodonta Australis Lamarck. — Two specimens with the 

 spire less elevated than in the prevaiHng Austrahan form. 



Trochita chinensis Linn.., var. The Port Ehzabeth speci- 

 mens are mostly purple-tinted. 



Fissurella mutabilis Sowerby. 



Fissurella neglecta Desk. — Scarcely distinguishable from 

 Mediterranean specimens. 



Fissurella robusta n. sp. — Testa ekvata, solida, fusca, 

 IcEvigata, vel concentrice obsolete corrugata ; antice curta, 

 postice turgida ; foramine mediocri, ovali, ad ^ longitudinis 

 sito. 



Long. 40, niaj. lat. 34, alt. 25 mill. 



The shell lent me by Mr. Ponsonby is in a very worn con- 

 dition, so that it is impossible from it to give a full description 



of the species; but it is of a peculiar robust and elevated form, 



and its surface appears to be nearly smooth without any signs 



of radiating ridges. 



Fissurella parvi-forala n. sp. — Testa oblongo-elliptica, con- 

 vexo elevata, alba, costis numerosis confertis complanatis 

 rugosis (interstitils puncturatis) sculpta; margine crenulato : 

 foramine minutissimo, sub-circulari, \ long. sito. 



Long. 17, lat. II, alt. 8 mill. 



A white species with a very small orifice, from St. Simon's 



Bay, kindly given me by the Rev. Dr. Churchill Babington. 



Macrochisma producta A Adams. — A dead specimen of 

 this Australian species found at Port Elizabeth by Mr. 

 Bairstow. 



Patella conspicua PMlippi. 



Diala capensis n. sp. — Testa elongata, angusta, albida, spira 

 turrit a ; anfradus 10, lente accrescentes, convexi, costis 

 longitudijtalibus angulatis, superne et inferne evanidis, 

 armati ; sutura impressa ; anfr. ultimus infra mediuju 

 obscurissime liratus ; apertura ovata. 



Long. 9I, maj. diam. 3, apert. long. 2, lat. i| mill. 



J.C. vi., Jan., 1889. 



