60 EDGAll A. SMITH. 



■^ Clilaniys natalensis n. sp. PI. VIII, figs. 7, 8 a. 



Testa parva, mediocriter compressa, inajquilateralis, fere 

 sequivalvis, altior quam loiiga, grisea, radiis nigris interrviptis 

 et maculis albis supra valvam sinisti-am picta ; valva dextra 

 costis tenuibus circiter 40 fere lajvibus f usco notatis instructa, 

 in interstitiis pulcherrime cancellatim sculpta, auricula autica 

 magna, pallida, costis circiter 9 squamatis instructa, postica 

 parva, costis 5-6 squamatis ornata; valva sinistra costis 

 squamis numerosis brevibus ; pagina interna alba nigro-f usco 

 interruptim lineata. 



Longit. 20 mm., alt. 23'5, diani. 7'5. 



Hab. — Dui'ban (McBean). 



This species is separable from Ch. tinctus on account of 

 its coarser and more equal ribs and the very different sculpture 

 in the intervening grooves. This consists of a fine cross- 

 hatching of crisscross strife, in some places looking like the 

 remains of a periostracum. The partial absence of scales 

 upon the right valve is in some measure due to attrition. 



* Pinna afra Soicerbi/. 



Pinna afra Soiverhy, ' Proc. Zool. Soc.,' 1835, p. 85. 



Hab. — Cape of Good Hope. 



Known only from the brief description. 



* Pinna sequilatera Martens. 



Pinna jequilatera Martens, ' Paetel's Cat.' (1890), 4th 

 ed., Abt. iii, p. 208. 



Hab.— "Afric. mer." 



I have so far been unable to find any description of this 

 species. 



* Pinna natalensis n. sp. PI. VIII, fig. 9. 



Pinna madida 8oiverhy {nee Reeve), 'Marine Shells 

 S. A.,' Appendix, p. 27. 



Testa elongata, oblique triangularis, ad marginem ligamenti 

 recta, vel leviter incurva, ad marginem ventralem apicem 



