AN ATI N A. 



Plate II. 



Species 8. (Mus. Cuming.) 



Anatina ansehifera. Anat. testa mbquadrato-ohlongd, 

 Jiyalhid, coiicen trice modice rugom-lineatd, plus minus 

 (jrauidatd, Jaterihns siibcequaUbus, hiantibus, antico vix 

 longiore, subi[Uadrato-rolimdato^ postico oblique rolun- 

 dato. 



The goose-bill Anatina. Shell somewhat squarely 

 oblong, hyaline, concentrically rugosely lineated, more 

 or less grauuled, sides nearly equal, moderately 

 gaping, the anterior scarcely the longer, squarely 

 rounded, the posterior obliquely rounded. 



Mya aiiserifera, Spengler, Schrit't. Nat. Ges. zu Copenha- 

 gen, vol. iii. p. 33. n. 8 ; Chemn. Conch. Cab. vol. xi. 

 p. 193. vign. 36. A, B. 

 Soleii Spengleri, Gmelin. 



Hab. Tasmania; R. C. Guun. 



A comparatively smooth shell with the sides nearly 

 equal. 



Species 9. (Mus. Cuming.) 



Anatina gracilis. Anat. testa aiiguste oblongd, subcy- 

 lindraced, liyalind, Icsvigatd, copiose minute granulatd, 

 granulis ad latus anticum gradatim evanidis, lateribus 

 subaqualibus, ambobus rotmidatis, modice Jdantibus, 

 antico subatteniiato. 



The slender Anatina. Shell narrowly oblong, some- 

 what cylindrical, hyaline, smooth, copiously minutely 

 granulated, granules gradually fading on the anterior 

 side, sides nearly equal, both rounded, moderately 

 gaping, the anterior rather attenuated. 



Hab. Moreton Bay, Australia. 



The sides of this species are nearly equal, the valves 

 are narrowly gibbous, comparatively free from concentric 

 wrinkles, but copiously minutely granulated. The gra- 

 nules, though disappearing on the anterior side, do not 

 end. as in most species, in an abrupt linear angle. 



Species 10. (Mus. Cuming.) 



Anatina marilina. Anat. testa suboblongo-quadrald, 

 liyalind^ submargaritacedy versus marginem conspicue 

 lirato-riigatd et granulatd, valvis subaqualibus, utrin- 

 que compresse rofundaiis, parum hiantibus. 



The ash Anatina. Shell rather oblong-square, hyaline, 

 rather pearly, conspicuously wrinkle-ridged and gra- 

 nulated towards the margin, valves nearly equal, 

 compressly rounded at each end, but little gaping. 



Valenciennes, MS. in Mus. Cuming. 



Hab. Australia. 



Compared with the allied species, the valves of this are 

 unusually equal, and but little gaping, the shell has, more- 

 over, a more pearly aspect. 



Species 11. (Mus. Cuming.) 



Anatina truncata. Anat. testa elongato-oMongd, sub- 

 compressd, liyalind, solidiusculd, concentrice rude ru- 

 gatd, granulatd, granulis ad latus anticum abrnptt 

 evanidis, lateribus subrequalibus, antico quadrato-trun- 

 cato, valde hiante, postico compresse rotundato, modice 

 hiante. 



The truncated Anatina. Shell elongately oblong, 

 rather compressed, hyaline, rather solid, concentri- 

 cally rudely wrinkled, granulated, granules abruptly 

 fading on the anterior side, sides nearly equal, an- 

 terior squarely truncated, largely gaping, posterior 

 compressly rounded, moderately gaping. 



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

 Anatina olorina, Valenciennes. 



Hab. Bay of Manila, Philippines (at low water); Cuming. 



This well-marked species, which I take to be Lamarck's 

 A. truncata, was collected in great abundance by Mr. 

 Cuming in the Bay of Manila. 



Species 13. (Mus. Cuming.) 



Anatina creccina. Anat. testa subelongato-oblongd, 

 cylindraced, tenui, liyalind, minute granulatd, prope 

 umbones sublate oblique rugatd, latere antico attenuato- 

 rostratd, rotundato-liiante, extremitatibus reflexis, pos- 

 tico compressiusculo, modice hiante, extremitatibus con- 

 centrice rugatis. 



The rough-bill Anatina. Shell rather elongately ob- 

 long, cylindrical, thin, hyaline, minutely granulated, 

 rather broadly obliquely wrinkled near the umboes, 

 anterior side atteniiately beaked, rotundately gaping, 



Decnniber 1S(J0. 



