BIVALVE SHELLS. 29 



Artemis caelata, Reeve, Conch. Icon. pi. 9. f. 28. 

 Hab. Insula Lufon, Philipjiinarura. , . 



82. DOSINIA CONTRACTA. 



D. testa ovato-orbiculari, altiore quam longa, albida, concolore, 

 tenuissime striata; lunula cordata, impressa; ligamento in 

 area profunda immerso. 



Venus concentrica minor, Chemn. Conch, t. vii. p. 20. pi. 38. f. 40.J, 



excl. syn. 

 Artemis contracta^ Phil. Abbild. Conch. Cyth. p. 6. no. 11. 



Hab. India orientalis {Chemnitz). 



d. Species dubiee. 



i^3. DOSINIA COMTA. 



D. testa sublentiformi, nonnihil longiore quam alta, tenui, eon- 

 vexa; margine ligamentali subrecto, producto, cum postico 

 subelongato ; lunula impressa, cordata, convexa ; striis tenui- 

 bus, pariim regularibus, medio appressis, utrinque erectis, sub- 

 lamellosis ; lamina cardinali angusta, postice attenuata, apicem 

 impressionis muscularis vix attingente; dente lunulari cum 

 cardinali angulum fere rectum formante. 



Laoen, Ind. Moll. Scandinav. p. 39. no. 289. 



Hab. Mare Scandinavense. 



84. DOSINIA ELEGANS. 



Artemis elegans, Conrad, Cat. of Shells inhab. Tampa Bay and 

 other parts of Florida Coast, Sill. Journ. 2nd ser. t. ii. p. 393. 



Hab. Tampa Bay. 



85. UosiNiA Adansoni. 



Le Dosin, Adans. p. 225. pi. 16. f. 5. 



Phil. Abbild. Conch. Cyth. p. 2. no. 2. pi. 2. f. 2. 



Hab. Africa? 



Genus 2. CYCLENA. 



" Animal Dosiniaj simile," Gray. 



Testa circularis, tenuis, inflata, ineequilateralis, transversim 

 striata, area lunulaque nullis ; umbones parvi, approxiraati ; mar- 

 gines simplices, aliquantisper crenulati ; cardo latus, planus, 

 tridentatus, alter bidentatus ; impressio muscularis postica a)) 

 extremitate marginis cardinalis remota ; sinus pallii triansndaris, 



