SMITH : ON THE GENUS ASTARTE. 229 



20.— ASTARTE PUSILLA Forbes. 

 1844. A. pusilla Forbes. Report Brit. Assoc. Advance. Sci., 



i''43) P- 192. 

 1881. A. pusilla Forbes. Jeffreys, P. Z.S., p. 713, pi. IxL, f. 10. 



"A. testa minuta, triangular!, concentrice striata, margine, 

 interno denticulato. Long. 0712" (Forbes). 



Habitat. — Naxos, ^gean Sea. 



21.— ASTARTE MACANDREWI sp. nov. 



Shell minute, obliquely triangularly ovate, inequilateral, 

 whitish or brownish white, finely concentrically striated, with here 

 and there at intervals a more conspicuous stria as if marking a 

 period of growth. Anterior slope longer and much less curved 

 than the posterior, very oblique. Hinder dorsal margin consi- 

 derably arcuate, forming a broad curved posterior end in 

 conjunction with the ventral outline, considerably broader than 

 the opposite anterior end. Lunule none. Interior of valves 

 serrated at the margins, the denticles (about twenty-three in 

 number altogether) being coarser at the middle of the ventral 

 edge than at the sides. Hinge composed of a single central 

 strong cardinal tooth in the right valve and two in the left, the 

 former falling, when the valves are closed, between the latter. 

 The anterior or straightest slope of the right valve is grooved 

 within the margin for the reception of the corresponding raised 

 front edge of the opposite valve, and the posterior or ligamental 

 slope of the latter is grooved to receive the corresponding hinder 

 prominent edge of the right valve. 



Length if mill., width from end to end also i§ mill. 

 Habitat. — Canary Islands (MacAndrew). 



This species I believe to be distinct from A. triangularis, 

 under which name it appears in the list of shells dredged at the 

 Canary Islands by Mr. MacAndrew (Annals and Mag. Nat. Hist, 

 1852, vol. X., p. 103). 



