1904.] NATURAL SCIENCES OF PHILADELPHIA. 557 



Hirado, Hizen. Types No. 86,279, A. N. S. P., from No. 1,410 of 

 Mr. Hirase's collection. 



This very pretty little form differs from C. hungerfordi Sowb. chiefly 

 in coloration. The latter occurs at Hirado, Hizen, also (1,234 of Mr. 

 Hirase's collection). 



Cardium annae n. sp. PI. XL, fig. 20. 



Shell subcircular and inflated, almost perfecth^ equilateral, thin 

 white, profusely marked with pale flesh-pink zigzag streaks, the beaks 

 fleshy-brown. Sculpture of fine radial riblets at the ends, each scored 

 at the summit with a finely punctured groove, the grooves persisting 

 over the median portion of the shell where the riblets are obsolete or 

 nearly so. Anteriorly there are about 16 very regular riblets not ex- 

 tending to the edge above, a lanceolate lunular area being left smooth. 

 Posteriorly the riblets are coarser, less regular, part of them flattened 

 and sulcate down the middle. The riblets scarcely crenulate the mar- 

 gins of the valves. The smoothish median part of the shell is regularly 

 marked with close punctured lines, the spaces between them being 

 perceptibly concave. The interior is slightly fluted by the external 

 ribs at the two ends, nearly smooth elsewhere. The zigzag external 

 markings show rose or crimson on a white ground, which deeper in the 

 cavity changes to fleshy-brown. 



The right valve has two contiguous cardinal teeth, the anterior one 

 standing almost above the posterior, and well developed anterior and 

 posterior lateral teeth. In the left valve the cardinals diverge, the 

 anterior being the larger. The anterior lateral is well developed, the 

 posterior obsolete. 



Length 27, alt. 25, diam. 16 mm. 



Hayama, near Kamakura, Sagami, on Sagami Bay. Types No. 

 86,319, A. N. S. P., collected and given to the Academy by Miss Anna 

 C. Hartshorne. 



This beautiful Cardium is related to C. papyracetim Brug., which I 

 have not yet seen from Japan. It is more fragile and more delicately 

 sculptured than that species, in which the inner margins of the valves 

 are closely and deeply fluted. jMoreover, the altitude of C. 'papyraceum 

 decidedly exceeds the length, while in C. annce the length is greater. 

 In C. papyraceum the posterior end is more produced than the anterior, 

 the latter being noticeably straightened and subvertical, while in C. 

 amice the two ends are almost equally rounded. The coloration also 

 differs. 



There is a specimen of this species in the collection of the Academy, 

 received many years ago from Andrew Garrett, labelled "C. tcheliense 



