BIVALVE SHELLS. 87 



regulariter sulcata, ad umbones divaricatim striata; lunula 

 vulvaque transversim striatis, sulcorum interstitiis tenuiter et 

 obsolete longitudinaliter striatis ; alba, lunula vulvaque fusco 

 punctatis ; lunula ovata, plana ; valvis intus profunde fuscis, 

 marginibus albis. 



Hab. ? 



Species magnitudine unguis pollicis, cii-cularis et lenticularis 

 sicut in Dosinia. 



13. ClRCE TUMEFACTA. 



C. testa subventricosa, subobliqua, marginibus medio subrotun- 

 datis, prope umbones inilata, leviter divaricatim costata ; mar- 

 gine dorsali declivi, subcomplanato ; lunula complanata; colore 

 albido, plerumque rufo-scripto. 



Circe tumefacta, Sow. Thes. Conch. p. 652. pl. 138. f. 28-30. 



Hab. ? 



14. ClRCE AUSTRALIS. 



C. testa ])ostice subquadrata, costulis divergentibus, prope mar- 

 ginem anticum costulis divergentibus brevibus, in medio an- 

 gularibus concentricis ; colore pallide fulvo, lineis divergentibus 

 et maculis fulvis ; intus purpurascente-fusco nebulato, ad 

 marginem nigro-punctato. 



Circe australis, Sow. Thes. Conch. p. 651. pl. 137. f. 16, 17 (non 

 C. australis, Quoy et Gaini.). 



Hab. Australia. 



15. ClRCE MINIMA. B.M. 



C.testa ovato-trigona, subcompressa, subaequilaterali, transversim 

 striata ; alba vel grisea, fusco aut flavo maeulata, intus alba, 

 dentibus cardinalibus duobus; impressione pallii postice inflexa- 



Turt. Brit. Biv. p. 137. 

 Hanley, Descr. Cat. p. 95. 

 Thomps. Fauna Irel. {Inv.) p. 262. 

 Venus minima, Mont. p. 121, pl. 3. f. 3. 



Mat. Linn. Trans. viii. 81. 



Turt. Brit. Faiina, p. 137 & 158. 



Turt. Conch. Dict. p. 236. 



Pennant, Zool. Brit. iv. p. 203. 



Dillw. Cat. i. 166. 

 Wood, Ind. Test. pl. 7. f. 17- 



