TRALIA. IT 



Tralia pnsilla, Gmel. — Shell imperforate, lengtbened-ovate, solid, 

 shining, smooth, marked with microscopic revolving lines, most easily 

 detected on the spire ; reddish-brown, with lighter, hardly perceptible re- 

 volving bands ; suture moderate; less ragged than in the other 

 species; spire elongate-conic; apex acute, shining, black; Fig. 18. 

 whirls six to seven, the upper ones flattened, the body whirl 

 obtusely carinated, regularly decreasing in diameter towards 

 the base, and equalling about || the length of the shell; 

 aperture subvertical, narrow, rapidly widening towards its 

 base, and equalling in length about ^| of the entire shell; 

 peristome simple, acute, within thickened by callus, and 

 furnished with a rather blunt, short, transverse, not very j-ralia 2ju.nlla. 

 prominent lamina ; the basal termination of the peristome 

 is appressed to the shell, and imperceptibly terminates in a columellar 

 lamina which ascends and winds into the aperture ; the columella and 

 parietal wall are covered with a shining callus ; there are two parietal 

 teeth, which are white, and enter into the aperture of the shell, the lower 

 one being much the smaller. Internal septse absorbed. Greatest diameter 

 5, length 11 millimetres. 



Auricula mida parvafiisca unicolor, Martini & Chemnitz, II, 119, t. xliii, 



f. 446. — Favanne, t. Ixv, f. H, 4 (teste Pfk.). 

 Valuta, n. 108, Schkoter, Einl. I, 273. 

 Valuta pusilla, Gmelin, Syst. 3436 (teste Pfr.).— Dillwyn, Cat. I, 507. — 



Wood, Ind. pi. xix, f. 20. 

 Valuta triplicata, Donovax, Brit. Shells, V, pi. cxxxviii (1808). — 



Montagu, Test. Brit. Suppl. 99.— Dillwyn, Cat. 507. — Wood, Ind. 



pi. xix, f. 19. 

 Btdimus ovidtis, Brugpiere, Encycl. Meth. I, 339. 

 Melampa ovulum, Schweigger, Handb. 739 (teste Pfr.). 

 Auricula ovula {Conovula), Ferussac, Tabl. Syst. 108 (absq. desc). 

 Auricula nitens, Lamarck, An. s. Vert. VI, 2, p. 141. — Deshayes in Lam. 



VIII, 332 ; ed. 3, III, 387.— -Chemnitz, ed. 2, Auric. 18. pi. ii, f. 



11-13. 

 Auricula pusilla, Deshayes in Lam. VIII, 332. 

 Conovulus nitens, Voight in Cuv. Thierr. Ill, 112 (teste Pfr.). 

 Conovulus pusillus, Anton, Verz. 48. 

 Melampus pusillus, Pfeiffer, Monog. Auric. Viv. 48 ; Brit. Mus. Auric. 



34, _W. G. BiNNEY, T. M. 168, pi. Ixxv, f. 29. 

 Tralia pusilla, H. et A. Adams, Gen. Rec. Moll. II (Sept. 1855), 244, pi. 

 Ixxxii, f. 8. 



The only American specimens I have seen are in my collection. 

 I detected them among marine shells and sand, collected in 

 Florida by Mr. Bartlett. 



This species is well known in cabinets by specimens from the 



