ANATINA.— Plate I. 



The bubble Anatina. Shell somewhat squarely ovate, 

 gibbous, subhyaline, concentrically rather rugosely 

 striated, anterior side broadly tumidly truncated, 

 posterior side attenuated, flexuously beaked. . 



Valenciennes, MS. in Mus. Cuming. 



Hnb. Sibonga, Island of Zebu, Philippines (in fine sand, 

 at the depth of thirty fathoms) ; Cuming. 



Of a characteristic ilexuous growtli, broadly tumidly 

 truncated in front. 



Species 4. (Mus. Cuming.) 



Anatina Valenciennesii. Anat. testa omtld, snb- 

 hyaUiid, versus man/iiies prof use ffraiiiilald, laterilms 

 late rotundatis, postico snbcoustricto, Mante, mai'gini- 

 btts vix expansis. 



Valenciennes' Anatina. Shell ovate, subhyaline, 

 profusely granulated towards the margins, sides 

 broadly rounded, posterior a little constricted, gaping, 

 margins scarcely expanded. 



Hab. China. 



In this fine species there is only a faint constriction of 

 the ])osterior extremity, the granules, which are very 

 crowded towards the margins, cease, as usual, very ab- 

 ruptly at the line of constriction. 



Species 5. (Mus. Cuming.) 



Anatina flexuosa. Anat. testa subelongatu-ovald, 

 tenia, hyaUnd,crasse granidald, circa umbones pUcato- 

 corrnyatd, latere antico rotundalo, subproditcto, pos- 

 tico flexuoso-attenuato, rostrato, modice liiante. 



The flexdous Anatina. Shell rather elongately ovate, 

 thin, hyaline, coarsely granulated, plicately wrinkled 

 round the umboes, anterior side rounded, rather 

 produced, posterior tlexuously attenuated, beaked, 

 moderately gaping. 



Hai. Japan. 



Well distinguished in being plicately wrinkled around 

 the umboes, while the posterior extremity is peculiarly 

 flexuously attenuated. 



Species (J. (Mus. Cuming.) 



Anatina subrostrata. Anat. testa oblongo-omtd, 

 teniii, liijali)id, plus minus (/ranulutd, latere antico ro- 

 tundalo, postico late expanso-rostralo. 



The slightly-beaked Anatina. Shell oblong-ovate, 

 thin, hyaline, more or less granulated, anterior side 

 rounded, posterior broadly expandedly beaked. 



Lamarck, Anim. sans vert. vol. vi. p. 78. 

 Solen anatinus, Linnaeus. 



Hab. ■? 



In this shell, v.-hich M. Valenciennes, from a com- 

 parison probably with Lamarck's type, set apart in !Mr. 

 Cuming's collection as the species under consideration, 

 the posterior extremity is peculiarly largely beaked. 



Species 7. (Mus. Cuming.) 



Anatina LATERNA. Anat. testa subquadrato-oblougd, 

 compressitisculd, hyalind, profuse granulatd, latere 

 antico rotundato, postico Jkxuoso-truncato, vix ros- 

 trato. 



The lantern Anatina. Shell somewhat squarely ob- 

 long, rather compressed, hyaline, profusely granu- 

 lated, anterior side rounded, posterior flexuously 

 truncated, scarcely beaked. 



Lamabck, Anim. sans vert. vol. vi. p. 77. 



Hab. North Australia. 



A beautifully delicate shell of fii-m growth, rather com- 

 pressed, with only a moderately beaked flexuous gaping of 

 the posterior extremity. 



