BIVALVE SHELLS. 121 



mellis tenuibus transversis latis distantibus roseo maculatis 

 cincta, pube inteiTuptis ; lunula cordiformi, squamis latis 

 prominentibus circumdata ; pube excavata, raarginibus tenue 

 crenulatis. 



Valentyn, Amb. pi. 16. f. 29. 



Venus calophylla. Hartley in Wood, Ind. Suppl. pi. 16. f. 26. 



Sow.jun. Thes. Conch, p. 724 pi. 160. f. 176. 

 Venus tiara. Reeve, Conch. Syst. i. pi. 67. f. 3 (non Dillw.). 



Hab, Oceanus Indicus et Chinensis ; Australia (JwAres). 



5. Chione Cumingii. B.M. 



C. testa rotundato-trigona, ventricosa, cordiformi, valde inaequi- 

 laterali, antice obtusa, postice angulata, aetata subrostrata, 

 albo-lutescente vel grisea, lamellis tenuibus erectis simplici- 

 bus cincta, antice posticeque abrupte interruptis, et lunulam 

 areamque circumscribentibus ; lunula brevi, cordata, plana, 

 laevigata, inferne elatiore ; area elongato-lanceolata, excavata, 

 in margine angulosa ; valvis intus albis, postice pallida purpu- 

 reis ; sinu pallii brevissimo triangulari, aequilaterali ; umboni- 

 bus valde incurvatis, appressis. 



Venus Cumingii, Sow.jun. Thes. Conch, p. 725. pi. 157. f- 122, 



Hab. Nova HoUandia. 



6. Chione lamellosa. B.M. 



C. testa ovato-trigona, inaequilaterali, turgidula, postice longiore, 

 angulata, roseo-feiTuginea ; cingulis foliaceis distantibus pos- 

 tice interruptis cincta ; area posticali impressa, violacea vel 

 purpurea, ad marginem laciniata; lunula late cordata, linea 

 impressa cu-cumscripta, subtus squamulis erectis circumdata, 

 intus alba ; marginibus tenuissime crenulatis. 



Venus casina, var. 8, Linn. Mus. Ulr. p. 498. 



Venus lamellosa, Chemn. Conch, vi. 298. pi. 28. f. 293, 294. 



Var. /3. Lamellis brevioribus. 



Hab. ? 



7. Chione tiara. B.M. 



C. testa ovato-trigona, subcordata, corapressa, alba, rubro-vio- 

 lasceute triradiata ; lamellis acutis, tenuibus, latis, erectis, di- 

 stantibus, transversaliter instructa, lamellis in latere postico 

 depressis et in margine pubes prominentibus ; lunula ovata, 

 depressa ; marginibus tenuissime crenatis ; latere postico intus 

 violaceo. 



6 



