PSAMMOBIA.— Plate VI. 



Species 42. (Mus. Cuming.) 



PsAMMOBiA Malaccana. Psam. testa ovato-transversd, 

 subcompressd, tenui, aquilaterali, nilente-albd, nilidi 

 obliqm sulcato-striatd, striis postice abrupte interrup- 

 t.k, latere anlico rotundaio, postico latiore, subangu- 

 lato-truncato et concentrice striata. 



Thf. Malacca Psammobia, Shell ovately transverse, 

 somewhat eompiessed, thin, equilateral, shining 

 white, neatly obliquely groove-striated, striae abruptly 

 interrupted on the posterior side, anterior side 

 rounded, posterior broader, slightly angularly trun- 

 cated and concentrically striated. 



Huh. Malacca. 



A delicate shining white shell, neatly sculptured with 

 ()bli((ue gi-ooved striae, which suddenly tenniuate on the 

 posterior side. 



Species 43. (Mus. Cuming.) 

 I'sAMMOBiA Menkeana. Psam. testa elongato-transversd, 

 angmtd, cBquilalerali, liris plicatis subirregularibus 

 concentrice sculptd, Jlavescente-albd, pallidissime vio- 

 laceo radiatd, latere antico late rotundaio, postico oh- 

 litse truncato obtmissime angulato. 

 Menke's Psammobia. Shell elougately transverse, nar- 

 row, equilateral, concentrically sculptured with irre- 

 gular plicated ridges, yellowish-white, very faintly 

 violet-rayed, interior side broadly rounded, posterior 

 obtusely truncated, very obtusely angled. 

 Ilttb. East coast of Australia. 



A narrow species, sculptured concentrically with some- 

 what irregular plicated ridges. 



subaquilaterali, tenui, fragili, transversim inaqualiter 

 plicato-striatd, striis posticc anguste elevatis, Jlaves- 

 cente-albd, lateribus rotundatis, postico obscure obtuse 

 angulato. 



The naurow Psammobia. Shell elongately transverse, 

 nearly equilateral, thin, fragile, transversely some- 

 what plicately striated, strise posteriorly nan'owly 

 raised, yellowish-white, sides rounded, posterior ob- 

 scurely obtusely angled. 



Deshayes, Pro. Zool. Soc. 1854, p. 320. 



Ilab. Senegal. 



The striae in this as in the preceding species incline to 

 be obliquely plicated, but are developed on the posterior 

 side in narrow ridges. 



Species 44. (Mus. Cuming.) 

 Ps.\MMOBiA AKGUSTA. Psaiii. tesfd elongato-transversd. 



Species 45. (Mus. Cuming.) 



Psammobia Layardi. Psam. testa elongato-tra7isversd, 

 depressd, aquilaterali, oblique minute sulcato-striatd, 

 striis ad latus posticum ahrupte terminatis, latere pos- 

 tico striis concentricis et radiantibiis fortiter decussate, 

 sublate obtuse angulato, rotundato-truncato ; flaves- 

 cente, albo et violaceo-fusco marmoratd. 



Layakd's Psammobia. Shell elongately transverse, de- 

 pressed, equilateral, obliquely minutely groove-stri- 

 ated, strise abruptly terminated on the posterior side, 

 posterior side strongly decussated with concentric 

 and radiating striae, rather broadly obtusely angled, 

 rotundately truncated ; yellowish, mottled with white 

 and violet-brown. 



Deshayes, Pro. Zool. Soc. 1854, p. 323. 



Hab. Philippine Islands ; Cuming. 



Elegantly sculptured and mottled throughout with 

 violet-brown and white. 



