A N A T I N A . 



Plate III. 



Species 15. (Mus. Cuming.) 

 /Vnatina cistella. Anat. testa quadrato-ohlongd, sub- 

 compressa, tenuiculd, Iiyalind, nisi ad latus anticum 

 copiose granulatd, latere postico compressii subrostruto, 

 modice hiante, antico late rotundato, vix hiante. 

 Fhe casket Anatina. Shell squarely oblong, some- 

 what compressed, rather thin, hyaline, copiously 

 granulated except at the posterior side, anterior side 

 coinpressly slightly beaked, moderately gaping, an- 

 terior side broadly rounded, scarcely gaping. 

 Eab. Moluccas. 



Of a distinct squarely oblong form, broad and rather 

 compressed. 



Species 16. (Mus. Cuming.) 



Anatina attenuata. Anat. testa elongato-oUongd, sub- 

 anyustd, teitui, Jiyalind, nisi ad latus anticum copiose 

 (jranidatd, latere postico attenuata, subtubuloso, antico 

 latiore, rotundato. 



The attenuated Anatina. Shell elongately oljlong, 

 rather narrow, thin, hyaline, copiously granulated, 

 except at the anterior side, posterior side attenuated, 

 somewhat tubulous, anterior side broader, rounded. 



Hab. Sydney. 



Of a rather naiTOW, elongated growth, the posterior side 



being attenuated and inclined to be tubular. 



Species 17. (Mus. Cuming.) 



Anatina Blainvillei. Anat. testa oblongo-ovatd, sub- 

 flexuosd, tenui, Iiyalind, minute granulatd, latere postico 

 subproducto, subrostrato, tubuloso-ldante, antico -wb- 

 attcnuato, rotundato. 



Blainville's Anatina. Shell oblong-ovate, rather 

 flexuous, thin, hyaline, minutely granuled, posterior 

 side rather produced, slightly beaked, tnbiJarly gap- 

 ing, anterior side rather attenuated, rounded. 



Valenciennes, MS. in Mus. Cuming. 



Hub. Island of Bui-ias, Philippines (in sandy mud at a 

 depth of ft-om ten to twenty fathoms) ; Cuming. 



Very thin aud transparent, of a rather narrow sub- 

 flexuous form. 



Species 18. (Mus. Cuming.) 



Anatina gonsteicta. Anat. testa suhquadrato-oblongd, 

 compressiusculd, hjalind, rnlnutissinie granulatd, latere 

 postico breviusculo, curoato, con.'itricto-rostrato, tubu- 

 loso-Uiante, antico producto, late rotundato, cix 

 Jdante. 



The constkicted Anatina. Shell somewhat scpiarely 

 oblong, rather compressed, hyaline, very minutely 

 granided, posterior side rather short, curved, con- 

 strictedly beaked, tubularly gaping, anterior side pro- 

 duced, broadly rounded, scarcely gaping. 



Hab. North Australia. 



An oblong beaked form, in which the beak is more tliau 



usually constricted. 



Species 19. (Fig. a, h, Mus. Cuming.) 



Anatina labiata. Anat. testa oblongo-ovatd, tenui, 

 eximie Iiyalind, miuutissime granulatd, latere postico 

 abriipte Jlexuoso-attenuato , marginibus tubuloso-expan- 

 sis, antico rotundato. 



The pouting xVnatina. Shell oblong-ovate, thin, de- 

 licately hyaline, very minutely granulated, posterior 

 side abruptly flexuously attenuated, with the margins 

 tubularly pouted, anteiior side rounded. 



Hab. Ceylon ; E. L. Layard. 



An extremely delicate species, very abruptly tubidarly 

 attenuated at the posterior end, with the margins expan- 

 dedly pouted, varying in character as in the two specimens 

 figured. 



Species 20. (Mus. Cuming.) 



Anatina Tasjianica. Anat. testa subaquilaterali, ob- 

 lougd, compressiusculd, subhyalind, subobsolete granu- 

 latd, later ibiis rotundatis, jiarum kiantibus, postico siib- 

 auyustiore. 



The Tasmanian Anatina. Shell nearly equilateral, 

 oblong, rather compressed, subhyaline, rather obso- 

 letely gTanulated, sides rounded, but little gaping, 

 posterior rather the narrower. 



Uab. Tasmania. 



A shell of very simple character, in which the sides are 

 nearly equal. 



Tebruarv, 18G3. 



