CARDITA.— Plate VII. 



swollen formation, and differs materially in this respect 

 from any other species. 



Species 35. (Mus. Cuming.) 



Cardita sulcata. Card, testa rotundato-cordiformi, 

 radiatim costatd ; costis rotvridis, granuloso-serratis , 

 interstitiis perangustis ; albidd, costis lineis fuscis 

 sjiarsis, oblique transversis, aurantio-roseo infra in- 

 quinatis, vivide pictis ; epidermide luleo-fuscd ; intus 

 albd. 



The grooved Cardita. Shell rotundately heart-shaped, 

 radiately ribbed ; ribs round, granulously serrated, 

 interstices very narrow; whitish, ribs vividly painted 

 with obliquely transverse dark brown lines, each of 

 which is daubed underneath with pale brown or 

 orange-rose ; epidermis yellowish-brown ; interior 

 of the shell white. 



Lamarck, Anim. sans vert. (Deshayes' edit.), vol. vi. 

 p. 406. 



Sowerbt, Genera of Shells, Card., f. 3. 

 Chama antiquata, Poli (not Linnaeus). 

 Venericardia sulcata, Payrandeau. 



Hab. Mediterranean. 



The Cardita sulcata and antiquata have been so con- 

 founded together by authors that it is extremely difficult 

 to arrange the synonyma ; an examination of the identi- 

 cal shell described by Linnaeus under the latter title (in 

 the Museum of the Linnean Society), enables me however 

 to certify that the Chama antiquata of Linnaeus is not 



the Chama antiquata of Poli ; for further account of whicl 

 see the preceding Plate, Sp. 30. 



Species 36. (Fig. a, b, c & d, Mus. Cuming.) 



Cardita laticostata. Card, testa ovato-rhombed, tur 

 gidd, latere postico elevatiusculo ; luteo- vel camlet) 

 albd.fasciis brunneis aut nigricantibus, latis, undath 

 longitudinaliter pictd ; radiatim costatd, costis linei 

 elevatis frequentibus decussatis ; epidermide fu/ves 

 cente. 



The broad-ribbed Cardita. Shell ovately rhomboida 

 swollen, posterior side rather elevated ; yellowisi 

 or bluish-white, longitudinally painted with broa 

 brown or blackish waved bands ; radiately ribbed 

 ribs crossed with numerous strongly raised lines 

 epidermis yellowish-brown. 



Sowerbt, Pro. Zool. Soc, 1832. 



Variety /3. (Fig. 36 d.) 

 Testa latere antico, aredque posticd vivide aurantio-rubrd 

 Shell with the anterior side and posterior ligamentar 



area bright orange-red. 



Cardita tricolor, Sowerby, Pro. Zool. Soc, 1S32. 

 Hab. St. Elena, Panama, Real Llejos, Guayaquil, &c. 



Central America (found in coarse sand and mud a 



the depth of from ten to twelve fathoms) ; Cuming 



This beautiful and distinct species is not uncommoi 

 in collections ; the longitudinal stripes vary more or les: 

 in colour from brown to black, and the sides of the sha 

 are occasionally tinged with orange-red. 



