LUTRARIA. 



Plate III. 



Species 9. (Mus. Cuming.) 



LuTRABlA Capensis. lAitr. testa, oblongo-ovata, latins- 

 culd, compressd ; lateribus subdeclwihis, subattenuato- 

 rotmidatis, latere antico radiatim indentato-impresso ; 

 concentrice striata, striis ad latera et prope marginem 

 subrugosis ; femgineo-albd, epidermide sordide fusces- 

 cente prope marginem indutd. 



The Cape Lutraria. Shell oblong-ovate, rather broad, 

 compressed ; sides slanting and attenuately rounded, 

 anterior side radiately indently impressed ; concentri- 

 cally striated, strise rather rough at the sides and 

 near the margin ; rust-white, covered near the mar- 

 gin with a dirty light brown epidermis. 



Deshayes, Pro. Zool. Soc. 1854. 



Hab. Cape of Good Hope. 



Rather broader, and more slanting from the umboes to 

 the lateral extremities, than the rest of the species, and 

 compressed towards the margins. 



Species 10. (Mus. Cuming.) 



LuTEABiA IMPAE. Lufr. testd subquadrato-elongatd, redd, 

 tenuiculd, convexd; lateribus cequaliter rotundatis ; con- 

 centrice striata, striis ad latera rugceformibus, posticis 

 consjricue corrngato-liratis, interstitiii profundis ; sor- 

 dide alba. 



The odd Lutraria. Shell somewhat squarely elongated, 

 straight, rather thin, convex ; sides equally roimded, 

 concentrically striated, striag wrinkle-like at the sides, 

 the posterior sides conspicuously wrinkle-ridged, the 

 interstices being deep ; dead white. 



Deshayes, Pro. Zool. Soc. 1854. 



Hab. Moreton Bay, Australia ; Strange. 



Of this very characteristic species only a dead odd valve 

 has been collected. It is of a straight, squarely elongated, 



Solenien7-ttts-Yik& form, with the concentric strife peculiarly 

 puckered on the posterior side into deep wrinkle-ridges. 



Species 11. (Mus. Cuming.) 



LtJTRAEiA MAXIMA. Lutr. tcstd elongato-ovatd, plano- 

 convexd, prope mnbones compressd, solidiusculd ; late- 

 ribus aqualiter rotundatis, concentrice irregvlariter 

 striata, striis ad latera rugosis ; ferrugineo-albd. 



The very large Lutraria. Shell elongately ovate, 

 flatly convex, compressed near the umboes, rather 

 solid ; sides equally rounded, irregidarly concentri- 

 cally striated, strise rough at the sides ; rust-white. 



Jonas, MS. (Mus. Cuming.) 



Hab. China. 



A fine species, of simple character, covered, doubtless, 

 with a dark epidermis, but of which there are scarcely 

 traces in the specimen figured. 



Species 12. (Mus. Cuming.) 



Lutraeia australis. Lutr. testd arcuato-oblongd, me- 

 dio gihbosd, antice rostratd, latere postico attenuato- 

 rokindato, antico oblique producto, latiore, aperte hi- 

 ante ; eburned, epidermide corned tenue corrugatd in- 

 dutd. 



The southern Luteaeia. Shell arcuately oblong, gib- 

 bous in the middle, beaked anteriorly, posterior side 

 attenuately rounded, anterior obliquely produced, 

 broader, openly gaping ; ivory-white, covered with a 

 thin finely shrivelled horny epidermis. 



Deshayes, Pro. Zool. Soc. 1854. 



Hab. Moluccas. 



A very characteristic species, peculiarly obliquely arched 

 and gibbous, with the anterior end beaked and openly 

 gaping. 



August, 1854. 



