PECTUNCULUS.— Plate IV 



Species 18. (Mus. Cuming.) 



Pectunculus holosericus. Pect. testa suborbiculari, 

 Imvi, albidd, multiradiatd, epidermide sericed indutd. 



The velvet Pectunculus. Shell nearly orbicular, 

 smooth, whitish, finely radiated, entirely covered 

 with a dark, short, silken, velvet epidermis. 



Reeve, Pro. Zool. Soc, 1843. 



Hab. Australia. 



The peculiar close velvety softness of the epidermis 

 alone distinguishes this species from any hitherto de- 

 scribed. 



Species 19. (Mus. Cuming.) 

 Pectunculus roseus. Pect. testa orbicular!, radiutim 



costatd, costis unyustis, numerosis, confertis ; paUidt 

 carneold, costis roseo-maculatis , maculis plus minusvt 

 elongatis. 



The rose Pectunculus. Shell orbicular, radiately 

 ribbed ; ribs narrow, numerous, and close-set ; pale 

 flesh-colour, ribs rose-spotted, spots more or less 

 lengthened. 



Reeve, Pro. Zool. Soc, 1843. 



Hab. ? 



I have ventured to distinguish this bright rose-tinted 

 shell as a new species, but must at the same time ex- 

 press my fear that it may prove to be a variety of the 

 Pectunculus laticostatus (Sp. 8.) in a very early stage of 

 growth. 



