223 



8. Polydonta MARINE, A. Adams. P. testa turbinato-conica, 

 granulata, albida, rabro maculata ac flammulata ; anfraclibus con- 

 vexiusculis, ultimo rotundato, plicato-noduloso , et, ad suturas, cor- 

 rugato, granulis in seriebus permultis, lequalibus, regularibus, con- 

 fertis, dispositis, basi cingulis granosis exsculpta, cuvitate contorta, 

 umbilicum mentiente, cingulo elevato, in dente unico terminato, ex- 

 hibente ; labro intus sulcato. 



Hab. ? Mus. Cuming. 



A very beautiful, finely-granulated species, with the last whorl 

 rounded, and having many of the characters of Claviculus, thus 

 showing the close affinity of the two genera. 



9. Dosinia deshayesii, A. Adams. D. testa solida, subventri- 

 cosa, cordato-orbiculari, rufescente, albo variegata, concentrice 

 lamellosa, lamellis incrassatis, aqualibus, lunula profunda, cor- 

 data, umbonibus acutis, incurvatis, divergentibus, margine dorsali 

 postico declivi, vix arcuato ; intus alba, fascia lata purpurea pos- 

 tice ornata ; sinu siphonali obliquo, obtusiusculo. 



Hab. North Australia. Mus. Cuming. 



Like the brown varieties of D. scalaris in size and general appear- 

 ance, but the lamellae are sharper and more produced, the valves are 

 more ventricose, the lunule is wide, deep and cordiform, the lozenge 

 has rugose angulated ridges, and there is a broad purple streak in the 

 interior of the valves. 



10. Dosinia coryne, A. Adams. D. testa solida, cordato-orbi- 

 culari, subcompressa, luteo-albida, nitidiuscula, concentrice striata, 

 striis confertis, vix lamellosis, incrassatis, mqualibus, lunula cor- 

 data, valde impressa, area lanceolata profunda, marginibus elevatis, 

 acutis ; margine dorsali vix arcuato ; sinu siphonali obliquo, apice 

 obtuso ; intus alba. 



Hab. Van Diemen's Land (Mr. Gunn). Mus. Cuming. 



A solid, rather compressed, and shining species, with the disk of 

 the valves nearly smooth owing to the slight elevation of the striae ; 

 the colour is pale yellowish white. 



11. Dosinia lineolata, A. Adams. D. testa solida, subventri- 

 cosa, cordato-orbiculari, nitida, albido-cinerascente, ad umbones 

 rufescente, lineolis radiantibus, intcrruptis ornata ; concentrice 

 plicata, plicis incrassatis, subimbricatis , glabratis ; lunula pro- 

 funda, cordata; umbonibus subincurvatis. anteversis, divergenti- 

 bus ; margine dorsali postico declivi, arcuato ; area lanceolata 

 profunda, marginibus elevatis angulatis lamellosis ; intus alba ; 

 sinu pallii impressionis acuta. 



Hab. Borneo. Mus. Cuming. 



The hinge in this species is very thick, and the teeth are very 

 strong ; the interior is strengthened, near the beaks, with a callous 

 deposit. The surface is prettily marked with fine, irregular, longi- 

 tudinal lines. 



12. Dosinia traillii, A.Adams. D.solidiuscula, subcompressa, 

 orbiculato-quadrata, alba, vix aquilaterali, umbonibus l<ei>ibus. 



