L iE D A. 



Species 24 bis. (Mus. Brit.) 



LjEda conkus.\. Lad. testd ovatA, compressd, suhaqui- 

 laterali, laid, tenuiter liratd, epidermide tenid, 

 stramined indutd ; latere antico subquadralo, ared 

 dorsali parvd definitd ; latere posiico brevimculo, 

 acuminato, margine dorsali declivi, ared latiusculd, 

 costd roslrali parvd, acutd, margine ventrali ad 

 terminum valde sursiim acclivi. 



The confused L^da. Shell ovate, compressed, .sub- 

 equilateral, broad, finely lirated, covered with a 

 thin, straw-coloured epidermis; anterior side 

 subquadrate, dorsal area small, defined; posterior 

 side rather short, aciuninated, dorsal margin 

 sloped, with rather wide area, rostral rib small, 

 acute, ventral margin much slojicd Ti])wards at the 

 end. 



H.4NLEY. Thes. Conch. Nuculida;, La;da, 2G. 



ffab. Japan, China seas. 



Species 25. (Mus. Brit.) 



L.fiDA BELLDLA. Lced. testd oblongd, acuminatd, sub- 

 pyriformi, pallidd, cmicenlricc liratd ; latere antico 

 rotunda subacuminaio ; latere postico rostrato, 

 angicsto, longiiisculo, acuminato, ante rostrum ra- 

 diatim depresso, margine dorsali depresso ; umbo- 

 nibus acuminalis. 



The little beautiful L^da. Shell oblong, acuminated, 

 subpyriform, pale, concentrically ridged ; anterior 

 side roundly subacuminated, posterior side beaked, 

 narrow, rather long, acuminated, radiately 

 depressed in front of the beak; dorsal margin 

 depressed, umboes acuminated. 



A. Adams. Proc. Zool. Soc, 185G, p. 49. 



Hab. Australia. 



A pretty little pyriform species. 



Species 2G, (Mus. Brit.) 

 JjXda fulgida. Lced. testd oblongo-pyriformi, kevi- 

 gatd, epidermide pallidd indutd; latere antico 



ventricosn ; latere postico angnxlo, acuminato, ros- 

 trato, costd rostrali angtistd, (wviyatd, ared ante 

 rostrum srihcoarctatd, ared dorsali depressd. 



The shining L^da. Shell oblong- pyriform, smooth, 

 covered with a pale epidermis ; anterior side veu- 

 tricose, posterior side narrow, acuminated, beaked, 

 rostral rib narrow, smooth, area in front of the 

 beak rather contracted, dorsal area depressed. 



A. Adams. Proc. Zool. Soc, 1832, p. 198. 



Ifab. Port Essington. 



Species 27. (Mus. Brit.) 



L-EDA CRAssA. La;d. testd solidd, crassd, ventricosd, 

 ovatd, laid, arcimtd, concentrice Kris crassis 

 rotundis sculptd, epidermide fusco-nigrescenti 

 indutd; latere antico rotundo, margine dorsali 

 declivi; latere postico rostrato arcuatim sursicm 

 acclivi, ared ante rostrum impressd, ad nuirginem 

 ventralem emarginatd ; ared dorsali magnd, lan- 

 ccolatd, longitudinaliter liratd. 



The thick L.eda. Shell solid, thick, ventricose, oval, 

 wide, curved, sculptured with concentric thick 

 rounded ridges, covered with a blackish-brown 

 epidermis ; anterior side rounded, dorsal margin 

 sloped ; posterior side curved upwards, area in 

 front of the beak impressed, emarginated at the 

 ventral margin, dorsal area large, lanceolate, 

 longitudinally ridged. 



Hinds. Proc. Zool. Soc, 1843. 



Hah. Australia. 



This species has a depressed area under the rostrum, 



which is marked by a notch in the ventral margin. 



Species 28. (Mus. Brit.) 



LilDA nasuta. L(ed. testd jiyriformi, ventricosd, tdbd 

 rostratd, Imvigatd ; latere antico injlato, longius 

 cido, m,argine dorsali declivi, ventrali convexo 

 latere postico angusto, rostrato, acuminato, costd 



September, 1871. 



