1492 



Astarte (Ashtarotha) concentrica Conrad. 

 Astarte concentrica Conrad, Journ. Acad. Nat. Sci. Phila., vii., p. 133, 1834; Morton, 



Syn. Org. Rem., App., p. 3, 1834; Fos. Medial Tert, p. 44, pi. xxi., fig. 6, 1840; 



Emmons, Geol. Rep. N. Car., p. 289, fig. 212, 1858; Proc. Acad. Nat. Sci. Phila., xiv., 



p. 578, 1863 ; Meek, Checkl. Inv. Fos. Miocene, p. 7, 1864. 

 Not Astarte concentrica Goldfuss, 1842, nor Roemer, 1852. 



A. concentrica var. bella Conrad. 

 Astarte lineolata H. C. Lea, Trans. Am. Phil. Soc., 2d Ser., ix., p. 241, pi. xxxiv., fig. 20, 



1846 ; Conrad, Proc. Acad. Nat. Sci. Phila., xiv., p. 578, 1863 ; Meek, Checkl. Inv. 



Fos. Miocene, p. 7, 1864; not A. lineolata Roemer, 1852. 



Astarte concentrica Tuomey and Holmes, Pleioc. Fos. S. Car., p. 71, pi. xx., fig. 3, 1857. 

 Astarte bella Conrad, Proc. Acad. Nat. Sci. Phila., xiv., pp. 577, 585, 1863. 

 Astarte compsonema Conrad, Am. Journ. Conch., ii., p. 72, pi. iv., fig. 18, 1866. 



Miocene of Virginia at and near Petersburg, at various localities on the 

 York River, Coggins Point, on the banks of the Nansemond River at Lee's 

 and Gaskin's Wharves ; of North Carolina at Magnolia and the Natural Well, 

 Duplin County ; of South Carolina at Shell Branch in the Darlington district ; 

 Pliocene of the Waccamaw beds, South Carolina. The variety is known from 

 the Miocene of Petersburg, Virginia, and the Pliocene of the Waccamaw River, 

 South Carolina. 



This is an abundant and rather elegant species, varying chiefly in relative 

 height of the beaks and the finer or coarser concentric sculpture. The speci- 

 mens from Duplin County, North Carolina, are smaller than those from Vir- 

 ginia but otherwise identical. This difference may be due to an accident of 

 collecting. A. lineolata H. C. Lea was described from a very young shell of 

 this species. Conrad's name of bella was bestowed on a short, high variety 

 figured by Tuomey and Holmes from the Pliocene, and three years later he 

 named the same thing from the Miocene of Virginia A. compsonema. 



A. calvertensis Glenn, from the Miocene of Plum Point, Maryland, is very 

 close to A. concentrica in sculpture, but is much flatter and more angular, and 

 might be taken for a sulcate variety of A. cuneiformis Conrad. 



Astarte (Ashtarotha) distans Conrad. 



Astarte distans Conrad, Proc. Acad. Nat. Sci. Phila., xiv., pp. 288, 1862, and 578, 1863; 



Am. Journ. Conch., ii., p. 72, pi. iv., fig. 14, 1866; Whitfield, Mio. Moll. N. Jer., p. 53, 



pi. vii., figs. 13-17, 1895. 



Miocene marl of Cumberland County, New Jersey, at Shiloh and Jericho; 

 Conrad and Burns. 



