ARTEMIS. 



Species 37. (Mus. Cuming.) 

 Aktemis katiiata. Art. testa orbicitlari, postkP suhflex- 

 uoso-coutortd, conceidrice crebriliratd, liris subirregu- 

 laribus, scabriusculis, area ligamenti dmplici, lunula 

 suboblongo-cordatd, impressd ; albidd, fulvo-rosaceo ra- 

 diatd. 

 The rayed Aktemis. Shell orbicular, posteriorly some- 

 what tlexuously contorted, concentrically closely 

 ridged, ridges somewhat irregular, rather rough, area 

 of the ligament simple, lunule rather oblong-cordate, 

 impressed ; whitish, rayed with fulvous pink. 

 Halj. Mouth of the Gambia, West Africa. 



Tiie rayed painting of tliis species is somewhat faint and 

 broken, but verv characteristic. 



Species 38. (Mus. Cuming.) 



Artemis contusa. Art. testa subglobosd, crassd, antice 

 subtrigond, concentrice impresso-striatd, liris iriter- 

 mediis plantdatis, nitentibus, area ligamenii latiusciild, 

 subexcamtd, limuld late cordaid, impressd; albidd, 

 umboiies versus lividd, ared ligamenti livido-violaced. 



The bruised Artemis. Shell somewhat globose, thick, 

 triangularly inclined anteriorly, concentrically im- 

 pressly striated, intermediate ridges flattened, 

 shining, area of the ligament rather broad, slightly 

 excavated, lunule broadly cordate, impressed ; 

 whitish, livid towards the umbones, area of the 

 ligament livid-\iolet. 



Hab. Point Cunningham, North Australia; Uriug. 



A stout, gibbous shell, characterized by a peculiar tinge 

 of violet livid colouring arountl the umbones, and within 

 the area of the ligament, which is rather broadly, but not 

 deeply, excavated. 



Species 39. (Mus. Cumuig.) 

 Artemis Sieboldii. Art.tesldorbicniuri, 



centrice subtiliter et crelerrime liratd, liris ad latera, 

 jiracipiie ad posticum, vmlth paucioribus, divaricatis et 

 corriigatis, s<iuamarum grandimi serie unicd per mar- 

 ginem. posticum, ared ligamenti latiusculd, vix excavatd, 

 lunula eordatd; ferrugineo-spadiced, subobscure fas- 

 ciatd. 

 Siebuld's Artemis. Shell orbicular, convex, concen- 



trically finely and very closely ridged, ridges much 

 fewer at the sides, divaricate and wrinkled, with a 

 single row of large scales along the posterior margin, 

 area of the ligament rather broad, slightly excavated, 

 lunide cordate ; rusty bay, rather obscurely banded. 



Hab. Japan ; Dr. Siebold. 



Belonging to the same type of the genus as A. e.mspe- 



rata, from which it clearly differs specifically. 



Species 40. (Mus. Cuming.) 



Aktemis Patagonica. Art. testd suborbiculari, parim 

 compressd, concentrice sulcatd, liris ad latera vix pau- 

 cioribus, ared ligamenti simplici, lunula subumpld ; 

 albd. 



TuE Patagonian Arte.mis. Shell nearly orbicular, but 

 little compressed, concentrically grooved, ridges 

 scarcely fewer in number at the sides, area of the 

 ligament simple, lunule rather large ; white. 



Philippi, Abbild. und Besch. Conch. Cyth. p. 3. pi. 2. f. 1. 



Hah. Patagonia ; Philippi. 



Closely allied in form and sculpture, in the appearance 



of the lunule, and in the simple area of the ligament, to 



A. concentrica and ponderosa. 



Species 41. (Mus. Cuming.) 



Artemis lamixata. Art. testa orbiculari, postice subau- 

 gulatd, concentrice laminatis, laminis temdbus, umbones 

 versus refexis, ad latera majoribus, ared ligamenti sub- 

 excavatd, lunuld eordatd, parvd, impressd ; albd. 



The laminated Artemis. Shell orbicular, slightly 

 angled posteriorly, concentrically laminated, lamina' 

 thin, reflected towards the umboes, larger at the sides, 

 area of the ligament slightly excavated, lunule heart- 

 shaped, small, impressed ; white. 



Hab. Basay, Isle of Samar, Philippines; Cuming. 



In specimens of less mature growth than that here 



figured the lamiuaj are raised throughout the shell. 



Species 43. (Mus. Cuming.) 

 Artemis trigona. Art. testd trigono-ovatd, crassinsculd, 

 concentrice subirregiihiriter rugoso-striatd, ared l/ga- 



March, 1850. 



