P S A M M B I A 



Species 46. (Mus. Cuming.) 



I'sAM.MQBiA PDLCHEREIJIA. Psam. testd elonguto-trmu- 

 versa, compressd, ienui, mbaquilaterali, violaceo- 

 rosed, obsolete albo-radicdd, intns ro-ieo-purpurascente, 

 oblique tramverdm costatd, costis siniplicibns, de- 

 prems, superne acutiusculis, ad latus podicum subito 

 interriip(is, latere postieo panic Mante, costiilis radi- 

 antibus scabrosis, ad mar(jmem denticidatls. 



The very beadtiful Psammobia. Shell elongately 

 transverse, compressed, thin, nearly equilateral, vio- 

 let-rose, obsoletely white-rayed, iuterior rose-purple, 

 obliquely transversely ribbed, ribs simple, depressed, 

 rather sharp at the upper part, suddenly interrupted 

 at the posterior side, posterior side a little gaping, 

 with small scabrous radiating ribs, denticulated at 

 the edge. 



Deshayes, Pro. Zool. Soc. 1854, p. 335. 



This beautiful little species is remarkable for its strongly 

 marked and strongly contrasted sculpture, the posterior 

 radiating ribs being obtusely prickly scaled. 



Species 47. (Mus. Cuming.) 



Psammobia palmula. Psam. testd oblongo-transversd, 

 arcuatd, tenui, fragili, inaqvilaterali, oblique costu- 

 latd, costulis antice subtilibus, snbuiidvlatis, postice 

 continuis et radianfibus, lutescente-albd, maculis per- 

 paucis pallide rufesceiitibus aspersd, latere antico at- 

 tenuato-rotimdalo, postieo oblique trnncato el paulu- 

 lum liianle. 



The little oar Psammobia. Shell oblong-transverse, 

 arched, thin, fragile, ineijuilateral, obliquely finely 

 ribbed, ribs auteriorly fine, slightly waved, posteriorly 

 continuous and radiating, yellowish-white, sprinkled 

 with a few faint red spots, anterior side attenuately 

 rounded, posterior obliquely truncated and a little 

 gaping. 



Deshayes, Pro. Zool. Soc. 1854, p. 325. 



Hab. Sydney, New Holland. 



The obliquely sloping ribs in this species are not inter- 

 rupted on the posterior side, but become gradually open 

 and raved. 



Species 48. (Mus. Cuming.) 

 Psammobia uispar. Psam. testd ovato-transversd, tenui, 

 wcequilaierali, lutescente-albd, roseo-marmoratd, ob- 

 lique lirato-stiiatd, striis ad latus posticum interrup- 

 lis, latere antico latiusculo, atfenmto-rotundato, pos- 

 tieo brevi, subrostrato, paulo Mante, conspicue radia- 

 tim costato. 

 The unequal Psammobia. Siiell ovately transverse, 

 thin, inequilateral, yellowish-white, rose-mottled, 

 obliquely ridge-striated, strife interrupted at the pos- 

 terior side, anterior side rather broad, attenuately 

 rounded, posterior short, somewhat beaked, a little 

 gaping, conspicuously radiately ribbed. 

 Deshayes, Pro. Zool. Soc. 1854, p. 325. 

 Ilab. Philippine Islands ; Cuming. 



Chiefly distinguished by the posterior side being some- 

 what beaked and conspicuously cross-ribbed, in contrast 

 with the obliquely sloping stria.'. 



Species 49. (Mus. Cuming.) 

 Psammobia denticulata. Psam. testd elongato-trans- 

 versd, arcuatd, tenui, subaquilaterali, albidd, ad um- 

 bones roseo tinctd, oblique undato-liratd, postice ra- 

 diatim costatd, costis scabrosis, latere postieo oblique 

 truiicato, liianle, ad marginerii denticulato. 

 The toothed Psammobia. Shell elongately transverse, 

 arched, thin, nearly equilateral, whitish, tinged with 

 rose at the umboes, obliquely wave-ridged, posteriorly 

 radiately ribbed, ribs scabrous, posterior side ob- 

 liquely truncated, gaping, denticulated at the edge. 

 Adams and Reeve, Moll. Voy. Samarang, p. 80. pi. 24. 



f. 2. 

 ffab. China Sea. 



The ribs on tlie posterior side are prickly-scaled, radia- 

 ting openly, so as to show the interstices deeply grooved. 



50. (Fig. a, b, Mus. Cuming.) 

 Psammobia squamosa. Psam. testd oblongo-transversd, 

 arcuatd, tenui, subaquilaterali, oblique undato-liratd, 

 postice radialim costatd, costis prominentibus, squamo- 

 sis, subdistantibus, cccrulescente-violaced, interdum al- 

 bidd, roseo marmoratd, latere antico rotundato, postieo 

 oblique truncato et kiante. 



January, 1857 



