86 PHOLADID^. 



been wrecked in Torbay about fifteen years previously. 

 The other authors we have cited have evidently solely de- 

 rived their knowledge of it from the Conchylia Dithyra of 

 Dr. Turton. We are acquainted only with four collections 

 which contain it, that of Mrs. Griffith, who similarly pro- 

 cured it from Torquay ; the original types now in the cabi- 

 net of Mr. Jeffreys, some very fine ones, without any indi- 

 cated habitat, which, formerly in the possession of the Rev. 

 F. Stainforth, now belong to Mr. Metcalfe, of LincolnVinn, 

 and some decidedly exotic ones in our National Museum. 



6. T. PALMULATA, Lamarck. 



Valves similar to those of Navalis. 



Pallets small, in shape resembling a short stalk of barley ; their 

 stem short and filiform, their broader end pinnately articulated 

 and compressed. 



Plate II. figs. 9, 10, 11. 



Turet <le Pondicherry, Adanson, Acad. Roy. des Sciences, 1759, p. 27G, pi. 9, 



f. 11, 12. 

 Teredo palmulata, Lamarck, Anim. s. Vert. ed. 2, vol. vi. p. 38. — Gray, 

 Philopoph. Magaz. 1827, p- 410. — Cuvier, Rtgne Anim. 

 (ed. Henders.) pi. 40, f. 8. — Hanley, Recent Shells, p. 4, 

 suppl.pl. 11, f. 13 (copied from Blainv.) — Philippi, Moll. 

 Sicil. vol. i. p. 2, pi. 1, f. 8, and vol. ii. p. 3 ? 

 „ bipalmidata, Delle Chiaje Memorie, vol. iv. p. 28, pi. 54, f. 18, 22, 

 23, 24. — Thompson in Annals N. Hist. October, 1847, 

 (corrected from T. malleolus in the September number). 

 Taret lipalmuli, Blainville, Man. Malacolog. pi. 80, bis, f. 8 (copied from 

 Adanson). — Griffith's Anim. K. vol. 12. pi. 7. f. 5 (pallet). 



So closely do the valves of this species resemble those of 

 navalis^ not merely in general aspect but in separate fea- 

 tures, that it is almost impossible to distinguish it from the 

 latter, excepting by the aid of its characteristic jiallels. 

 Their surface, however, appears of scarcely so pure and 

 glossy a white, and the overlapping internal edge of the 

 auricle is not so closely appressed, but a little elevated. 



