BY RALPH TATE, F.G.S., ETC. 403 



Cardita rubicunda, No. 220, p. 38. 



C. testa elliptico-ovata, trapezode, transversa, turgida, subepidermide 

 fusco-fulva pallide cornea, obsolete rubro-fasciata ; costis sedecim 

 rotundatis latescentibus ; anticis subcrenatis. Long. 20, alt. 1 3*7, 

 crass. 10 lines. 



Sab. "Western Coast. 



This is C. incrassata, Sowerby, Appendix, Tankerville Cat. 

 1825. 



Cardita Preissii, No. 221, p. 38. 



C. testa trapezode-ovata, transversa, subturgida, albida efusco varia 

 et snbzonata ; costis octodecim convexis : anticis eleganter annulato- 

 crenatis, medianis posterior ibus et posticis squamis sp>arsis fornicatis 

 erectis muricatis. Long. 12-4, alt. 9, crass. 6 lines. 



Hab. Western Coast. 



[Figured by Eeeve, Icon. Conch., t. 8, f. 39, as a distinct 

 species.] 



Cardita tridacnoides, No. 222, p. 39. 



C. testa ovato-trapezode, transversa, solida, flava, antice abbreviato- 

 truncata, infer ins sinuata, superius dorsato-arcuata, turgida; costis 

 duodecim : anticis squamis obtusis brevibus incumbentibus , poster ior ibus 

 squamis validis adscendentibus imbricatis. Long. 16, alt. 10, crass. 

 9 lines. 



Sab. Western Coast. 



[Angas refers this species to Mytilicardia crassicostata, Lamarck 

 {Cardita).'] 



ClIAMA SP03TDYL0DES, No. 227, p. 39. 



Ch. testa elliptico-lanceolata, longitudinali, albida sanguineo radiata 

 oblique eleganter costato-plicata ; valva minore convexiuscula, squamis 

 fornicatis elongatis jJutentibus, inajore naviculari exterius angulato- 

 cariuata, June rudi, illinc squamis variis spars is muricata; natc 



