ARTEMIS 



Species 32. (Mus. Cuming.) 

 Artemis penicill.\ta. Art. testa subquadrato-orbwulari, 

 tmuiculu, compressd, concentrice subtUiter et cfeberrime 

 striata, area Uganienti vix excavatd, htnuld oblongo- 

 rnrdatd, subobsoletd ,• carueo-albidd, li/ieis teuuibiis ni- 

 gricautibus interruptis, iiiargiuem versus peculinriter 

 radiatd. 

 The pencilled Artemis. Shell somewhat squarely 

 orbicular, rather thin, compressed concentrically 

 finely and very closely striated, area of the ligament 

 scarcely excavated, lunule oblong-cordate, rather ob- 

 solete ; flesh-white, peculiarly rayed with fine inter- 

 rupted blackish lines. 

 Hah. ? 



The radiating interrupted lines of this species have the 

 appearance of light pencillings. 



Species 33. (Fig. a, b, c, Mus. Cuming.) 



Artejiis v.vriegata. Art. testa orbicidari, nunc tuini- 

 diusculd, nunc compressd, coiicentrice liratd, liris iu- 

 terdiiia subt'dibus numerosis, 'mterdmu sublaminatis, 

 lamiuis umboues versus re/lexis, ared Ugameidi vix 

 excavatd, lunula cordatd, impressd; albidd, fasciis 

 tribus rufo-oastaneis plus minus distincte radiatd, in- 

 terstiliis Uneisjlexuosis, sape inlerruptis, lunula fused, 

 umbouibus interdum roseis, ared Ugamentifusco tessel- 

 latu. 



TuE variegated Artemis. Shell orbicular, sometimes 

 rather swollen, sometimes compressed, concentrically 

 ridged, ridges sometimes fine and numerous, some- 

 times slightly laminated, the laminaj being reflected 

 towards the umboes, area of the ligamenit slightly ex- 

 cavated, lunule cordate, impressed ; whitish, more 

 or less distinctly rayed with three reddish-chestnut 

 bands, of which the interstices are painted with flex- 

 uous lines often inten'upted, lumde brown, umboes 

 sometimes pink, area of the ligament tessellated with 

 brown. 



(Jkay, Analyst, 1838, vol. viii.p. 30'J. 

 Venus exokta variegate/, Chemnitz. 

 Fenus australis, Quoy and Gaimard (not of Graelin 



or Chemnitz). 

 Artemis australis, Philippi. 



Ilab. PhUippine Islands, iloluccas, Australia. 



The present species, like all those of wide geographical 

 distribution, is an extremely variable one. In the spe- 

 cimen represented at Fig. 33 b, ii-om the Moluccas, which 

 may be regarded as the type, the ridges are more distant, 

 and the painting darker and more exact ; in that at Fig. 

 33 c, the ridges are much finer and close-set, the colouring 

 is fainter, and a curious transition is presented to the 

 British A. exolela, through the variety figured in PI. V. 

 Fig. 29 b. The most distinct variety of A. variegata is that 

 from Australia represented at Fig. 33 a, in which the shell 

 is more compressed, the ridges more laminated, and the 

 colouring paler and more broken. The tessellated painting 

 of the ligament-area and the dark colour of the lunule are 

 characteristic in all the varieties. 



Species 3-1. (Mus. Cuming.) 

 Artemis Dunkeri. Art. testa subtrigouo-orbiculan, ««- 

 dique regulariter concentrice sulcatd, ared Uganienti 

 siinpUci, humid suboblongo-ovatd, partem impressd; 

 albd, nitente. 

 Bunker's Artemis. Shell somewhat triangularly orbi- 

 cular, regularly concentrically grooved throughout, 

 area of the ligament simple, lunule rather oblong- 

 ovate, but little impressed ; white, shining. 

 Philippi, Abbild. und Besch. Conch. Cijth. p. 4. pi. -I. 



i. 5. 

 Rab. St. Elena and Panama, Central America (from sandy 

 mud at low water) ; Cuming. 

 A fine species, sculptured with great regularity, be- 

 longing to the same typical section of the genus as A. cua- 

 centrica. 



Species 35. (Mus. Cuming.) 



Artemis cretacea. Art. testd orbiculari, crassd, postici 

 suhflexuosd, concentrice tenue striatd, striis ad latera 

 elemtioribus, prcecipue per marginem posticum, ared 

 ligamenti subampliter excavatd, lunuld cordata, im- 

 pressd ; albd. 



The chalk Artemis. Shell orbicular, thick, posteriorly 

 rather flexuous, concentrically finely striated, striae 

 more elevated at the sides, especially along the pos- 

 terior margin, area of the ligament rather largely 

 excavated, lunule heart-shaped, impressed ; white- 



Ma 



