175 



Long. 1| polL, lat. If polL, crass. | poll. 



Variat magnitudine et habilu. Striae in adultioribus 

 scnsim magis evanescunt. 



Lcgit n. Cuming adultas rupibus, juniores corallinis et 

 fiicis adhaerentcs, in sinu Valparaiso. 



Proceedings. 1S33. p. 124. 



2. Terebiatula uva IP. J. lirodcrip. 



T. tesla ovato-oblonga, vcnlricosa, subglabra, subdia- 

 pliana, lincis conccutricis substriata; valva pcribrala, sub- 

 elongala. 



Long. 1 polL, lat. f polL, crass. y^ polL 



Lcgit Dare in sinu Tehuantepec. 



Proceedings. 1833. p. 124. 



FAM. III. CRANIACEA Mke. 

 63. ORBICULA Cuv. (discina Lam.) 



1. Orl)icula lamellosa W\ J. Broderip. 



Orb. tcsta cornea, fusca, suborbiculari, subdepressa, la- 

 mellis concentricis elcvatis rugosa. 



Long. ly'o^ polL, Lit. 1 polL 



Legit H. Cuming gregatim aliis testis adhaerentem, 

 ad oras Peruviac (Iquiqui; Bay of Ancon). 



Proceedings. 1833. p. 124. 



2. Orbicula Cumingii M\ J. Broderip. 



Orb. testa subconica, suborbicuLiri , crassiuscula, striis 

 ab apicc radiantibus, numcrosis; epidermide fusca. 



Long. yV poll-? lat. f poll. 



Similis orb. striatae Sow. (Iransa. of thc Linn. soc.) 



Leglt II. Cuming ad Paytam Peruviae, ad St. Elenam, 

 et ad Panamam. 



Proceedings. 1833. p. 124. 



