DON AX. 



Plate VII. 



Species 43. (Mus. Cuming.) 



DoNAX GRANIFEEA. Boii. testd trigono-ovatd, solidius- 

 culd, gibbosd, creberrime radiaUm I'meari-sulcatd, pos- 

 tice deim corrugato-granosd, albidd, umbonibus vio- 

 laceo remote biradiatis ; latere antico acmninato-ro- 

 tundato, postlco brevissimo, abrupt!; migulato-truncato. 



The grained Donax. SheU triangularly ovate, rather 

 solid, gibbous, very closely radiately linearly grooved, 

 posteriorly densely wrinkle-gTained, white, umboes 

 distantly two-rayed with violet ; anterior side acumi- 

 nately rounded, posterior very short, and abruptly 

 angularly truncated. 



Deshayes, Pro. Zool. Soc. March, 1854. 



Hab. ? 



A stout white broadly triangular species, very abruptly 

 angularly truncated. 



Species 44. (Mus. Cuming.) 



Donax venusta. Bon. testd oblongo-ovatd, mbtrigond, 

 compressd, lavigatd, poUtd, postlce coucentrice semi- 

 sulcatd, palUde rosoceo-spadiced, albiradiatd ; latere 

 antico rotundato, postico obtuse decUvi-angulato ; area 

 c(^icentrice sidcatd. 



The iandsome Donax. Shell elongately ovate, sub- 

 triangular, compressed, smooth, polished, posteriorly 

 concentrically half-grooved, pale rose-fawn, white- 

 rayed ; anterior side rounded, posterior obtusely 

 slantingly angled ; area concentrically grooved. 



PoLi, Test. utr. Sicilia3, pi. 19. f. 23, 24. 



Hab. Mediterranean. 



A poUshed shell, distinguished in all its varieties by a 

 few concentric grooves on the posterior side, near the ven- 

 tral margin. 



Species 45. (Mus. Cuming.) 



Donax variegata. Bon. tedd subelongato-oblongd, com- 

 pressiuscidd, lavigatd, politd, albidd, aurantlo-thictd, 

 fusco nitide radiatim reticulatd ; latere antico sub- 

 acuminato-rotundato, postico brevi, obtuse declivi-an- 

 gulato. 



The variegated Donax. Shell subelongately oblong, 

 rather compressed, smooth, polished, whitish, stained 



with orange, neatly radiately reticulated with brown ; 

 anterior side rather aouminately rounded, posterior 

 short, obtusely slantingly angled. 



Eab. 



A small polished compressed species, distinguished by 

 its orange-fawn colour, and pretty radiately reticulated 

 painting. 



Species 46. (Mus. Cuming.) 



Donax lubrica. Bon. testd sublate trigond, compressd, 

 concentrice irregulariter striata, postice radiatim li- 

 neari-snlcatd, einerascente, saturate fasciatd ; latere 

 antico rotundato, postico breoissimo, obtuse trmicato. 



The slimy Donax. Shell rather broadly triangular, com- 

 pressed, concentrically irregularly striated, posteriorly 

 Linearly radiately grooved, pale ash, darker banded ; 

 anterior side rounded, posterior very short, obtusely 

 truncated. 



Hanley, MS. (Mus. Cuming.) 



Hab. ? 



Of a broadly triangular form, with an extremely con- 

 tracted posterior side, compressed throughout. 



Species 47. (Pig- a, b, Mus. Cuming.) 



Donax variabilis. Bon. testd trigono-oblongd, aubau- 

 gnstd, radiatim lineari-sulcatd, lutescente ant albidd 

 aut varie roseo-radiatd ; latere antico acnminato-ro- 

 tundato, postico lato, brevissimo, acute angidato. 



The variable Donax. Shell triangularly oblong, rather 

 narrow, radiately linearly grooved, yellowish or white, 

 or variously pink-rayed ; anterior side acuminately 

 rounded, posterior broad, veiy short, sharply angled. 



Say, American Conchology, pi. 61. f. 1. 



Hab. United States. 



Chiefly distinguished by its pinched acuminately round- 

 ed anterior end. 



Species 48. (Mus. Cuming.) 



Donax denticulata. Bon. testd trigono-cnneatd, cras- 

 siusculd, dense lii/eaii-sulcatd, albidd, rufo et griseo 

 varie radiatd, interdum aurantid; latere antico sub- 



October, 1854. 



