VENUS.— Plate XVIII. 



tinctk, lavigatd vel suburegidariter striata, ad latits 

 anlicum, laminato-alatd. 



The winged Venus. Shell somewhat triangularly ovate, 

 fulvous-white, rayed with light fawn-brown, umboes 

 flesh-tinted, smooth or somewhat irregularly striated, 

 laminately winged on the anterior side. 



Hab. Swau Eiver. 



A new form of the genus, entirely destitute of lamellae, 



with foliations, few in number, on the anterior side only. 



Species 84. (Mus. Cuming.) 

 Ventjs Yaxesii. Ven. testa siMrigoiio-otlongd, fulves- 



cente-croced, lacigatd, coneentrice lamellatd, lameUis 

 brevibiis, subdistautibus, imgularibus,po8tici mnricato- 

 fimbriatis. 



Yates's Venus. Shell somewhat triangularly oblong, 

 fulvous saffron-colour, smooth, concentrically lamel- 

 lated, lamella; short, rather distant, irregidar, poste- 

 riorly prickly-frilled. 



Gray, Yates' New Zealand, Appendix. 



Hab. New Zealand. 



The lamella; are here comparatively short, but cvu-iously 

 prickly spouted on the posterior side. 



