731) 



Soc. 1835, p. 42. llanley, Sp. of Shells, Wood's Suppl. pi. 15. 

 f. 49. 



V. test& oblongo-subtrigona, tenuisulca, laavi, polita, alba, stri- 

 gilis lineisve angularibus fuscis varie picta, intus alba; margine 

 integerrimo. 



Smooth, nearly trigonal, flat; the lunule long, not very dis- 

 tinctly marked. Shell sometimes white, but generally marked 

 with undulating and angular lines. The specimen with a few 

 pink lines is Mr. Hanky's, the others are Mr. Cuming's. 



Australia. 



108. Venus donacina (pi. clix. f. 165, 166, 167), Chemn., 

 Conch, f. 1983, 1984. Donax veneriformis, Lamarck, no. 10. 

 Tank. Cat. V. semicancellata, Koch, Philippi, Abbild. t. 1. f. 

 2, 3. 



V. testa crassa, compressa, trigona, fumoso-fulva, laevigata, ob- 

 scure radiata et punctata, subsequilatera ; latere postico angulato, 

 radiatim striato, ad angulum subcancellato ; latere antico subtri- 

 gono ; lunula et area dorsali impressis, indistinctis. 



Very thick, smooth, triangular, flatfish, of a smoky-brown 

 colour, and nearly equilateral ; the hinder side is angulated and 

 radiately grooved, and at the angle, particularly when young, has 

 a few cross grooves. The variety is an abnormal form, and 

 slightly resembles the one figured as V. semicancellata by Philippi. 



J apan. Dr. Sibbald. 



109. Venus jEquilatera (pi. clix. f. 168, 169), Sowerby 

 (Donax), Tank. Cat. 



V. testa V. donacince simili, sed margine ventrali magis ar- 

 cuato ; latere postico vix angulato ; striis radiantibus nullis. 



More arched in the ventral outline, in the hinder slope, and 

 altogether less angular, than V. donacina ; striated concentrically, 

 but not cancellated at the hinder angle. 



Japan. Dr. Sibbald. 



