PLATE XXIX. 



F I G. 11. 

 DONAX IRUS. 



FOLIATED purr: 

 SPECIFIC CHARACTER. 



Oval. Outside rugged or wrinkled transversely with numerous raised 

 membranous waved laminse or foliations. 



DoNAX Irus : testa ovali, rugis membranaceis erectis striatis cincta. 

 Cuneus parvus albescens, rugis foliaceis et membranaceis erectis 



transversim cinctus, Foliatus. Da Costa. Brit. 



Qonch. p. 204. — Sp. 39. tab. \5.fg. 6. 



Found in abundance in Cornwall buried in the sands, and not 

 uncommon on the shores of Dorsetshire. 



i 



