BIVALVE SHELLS. 29 



Artcmis cselata, Reeve, Conch. Icon. pl. 9. f. 28. 

 Hab. Insula Lu^on, Philippinai-um. 



82. DOSINIA CONTRACTA. 



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

 tenuissime striata; lunula cordata, impressa; ligamento in 

 area profunda immei-^o. 



Venus concentrica minor, CJierrm. Conch. t. vii. p.20. pl.38. f, 403, 

 excl. syn. 



Artemis contracta, Phil. Ahhild. Conch. Cyth. p. 6. no. 11. 



Hab. India orientalis {Chemnitz). 



d. Species duhice. 



83. DOSINIA COMTA. 



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

 vexa; margine ligamentali subrecto, producto, cum postico 

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

 bus, parum 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. 



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



Hab. Mare Scandinavense. 



84. DOSINIA ELEGANS. 



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

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



Hah. Tampa Bay. 



85. DosiNiA Adansoni. 



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



Phil. Abhild. Conch. Cyth. p. 2. no. 2, pl. 2. f. 2. 



Hah. Africa? 



Genus 2. CYCLINA. 



** Animal Dosinise simile," Gray. 



Testa circularis, tenuis, inflata, inssquilateralis, transversim 

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

 gines simplices, aliquantisper crenulati ; cardo latus, planus, 

 tridentatus, alter bidentatus ; impressio muscularis postiea ab 

 extremitate marginis cardinalis remota ; sinus pallii triangularis, 



