A R T E M I S . 



Species 2C. (Mus. Cuming.) 



Artemis fibula. Jii. testa urbicidari, crasshisculd, 

 plano-couvexd, cuncentrice creberrimi te7mistriatd,striis 

 ad latera mbelevatioribm, ared ligamenti submnpUter 

 excavatd, lunuld cordatd, profundi iinpressd ; liif.es- 

 cente-albd. 



The button Artemis. Shell orbicular, rather thick, 

 flatly convex, concentrically very closely finely stri- 

 ated, stria3 rather more elevated at the sides, area of 

 the ligament rather largely excavated, lunule heart- 

 shaped, deeply impressed ; yellowish-white. 



Hab. Mouth of the Gambia, West Africa. 



Principally remarkable for the deeply impressed growth 



of the luuule. 



Species 37. (Mus. Cuming.) 



Artemis Africana. Art. testd mborbkulari, umbones 

 versus subattenuatd, compresso-convexd, concentrice 

 tenuistriafd, striis ad latera subelevatioribus, ared 

 ligamenti conspicue lanceolato-excavatd, lunuld cordatd, 

 swbprofunde impi-essd ; fuscescenie-albd, umbones versus 

 pellucido-carneo tinctd, intiis sapefusco-rubente. 



The African Artemis. Shell nearly orbicular, slightly 

 attenuated towards the umboes, compressly convex, 

 concentricaOy finely striated, striae rather more 

 elevated at the sides, area of the ligament conspicu- 

 ously lanceolately excavated, lunule cordate, rather 

 deeply impressed ; browiush-white, stained with 

 transparent flesh-colom- towards the umboes, interior 

 often brownish-red. 



Gray, Analyst, 183S, vol. \-iii. p. 309. 

 Le Basin, Adanson. 

 Artemis Adansoni, Philippi. 



Hab. Senegal, West Africa. 



The transparent flesh-tinge around the umboes of this 



species, forms one of its characteristic peculiarities. 



Species 38. (Mus. Cuming.) 



Aktemis cffiLATA. Art. testd subqnadrato-orbiculari, temi- 

 icttld, compressd, concenince subtilissime striatd, striis 

 creberrimis, ad latera viulth paucioribits, subcorruffatis, 



ared ligamenti simplici, ared secundd subexcavatd, 

 tenue laminatd, circumdatd, Itmuld subelongato-cordatd ; 

 albd, umbonibusjlavicantibus. 



The CARVED Artemis. Shell somewhat squarely or- 

 bicular, rather thin, compressed, concentrically very 

 finely striated, stria; very close-set, much fewer in 

 number at the sides, slightly corrugate, area of the 

 ligament simple, surrounded by a second slightly ex- 

 cavated thinly laminated area, lunule rather elon- 

 gately cordate ; white, umboes yellowish. 



Hab. Catanaun, Island of Luzon, Pliilippines (in fine 

 sand at low water) ; Cuming. 



Characterized in an especial manner on the posterior 

 side by a delicately carved supplementary area. 



Species 29. (Fig. « and i, Mus. Cuming.) 



Artejiis exoleta. Art. testd vix quadrato-orbiculari, 

 concentrice irregnlariter rude striatd, ared ligamenti 

 simplici, august d, hmnld obhngo-cordatd, subimpressd ; 

 lacted, fusc(>>r> ,</, .,-,//,. u^M-nri radiatd aut promiscue 

 variegatd, /". ' / . 'r. 



The worn Aktimi-. sh, II slightly squarely orbicular, 

 concentrically ii'regularly rudely striated, area of the 

 ligament simple, narrow, lunule oblong-cordate, 

 rather impressed ; cream-colour, obscurely rayed or 

 promiscuously variegated with brownish-red, lunule 

 brownish. 



Desiiayes, Traite Ele'm. pi. 20. f. 9-11. 

 Fenus exoleta, LinucEUS. 

 PectuHCidus capillaceus. Da Costa. 

 Cytlierea exoleta, Lamarck. 



Hab. British and European shores (ii 



sandy 



from low-water mark to a depth of from seventy 



to eighty fathoms). 

 A curious transition may be traced from this well-known 

 European species, into A. variegata, inhabiting the Eastern 

 Seas between the Philippine Islands and Australia. 



Species 30. (Mus. Cuming.) 

 Artemis Cumingii. Art. testd vix orbiculari, postice 

 conspicue angulato-productd et truncatd, concentrice 



subtilissime et creberrime striatd, striis ad latera cun- 



Mareh, 1850. 



