ASTARTE. 117 



1850. Astarte striata, A. d'Orbigny. Prodr. de Pal., vol. ii, p. 160 (partim). 



— concinna, d'Orbigny. Ibid., p. 160. 



1854. striata, /. Morris. Cat. Brit. Foss., ed. 2, p. 187. 



— — concinna, Morris. Ibid., p. 186. 



1866. striata, F. J. Pictet and G. Campiche. Foss. Terr. Cret. Sic 



Croix (Mater. Pal. Suisse, ser. 4), p. 230. 

 1871. — — (Eryphila), F. Stoliczlca. Palaxmt.Iudica, Cret. Fauna 



S. India, vol. iii, p. 285. 



— concinna (Eriphyla), Stoliczka. Ibid., p. 285. 



? 1873. Eriphyla striata, H. B. Geinitz. Das Elbthalgeb. in Sachsen (Palneon- 



tographica, vol. xx, pt. 1), p. 228, 

 pi. Ii, figs. 1-3. 



Description. — Shell Avith rounded outline, sometimes nearly orbicular, usually 

 only moderately inequilateral, moderately convex. Length usually a little greater 

 than height, but occasionally less. The margin in front of the umbo is concave 

 for a short distance ; behind the umbo it is convex ; the anterior, the ventral, and 

 posterior margins form a more or less regular curve. Umbones rather small, 

 placed a little in front of the median line. Lunule small, deep, with a sharp edge. 

 Escutcheon narrow. 



Ornamentation consists of numerous small concentric ribs, which are slightly 

 irregular and are separated by linear grooves ; at intervals somewhat deeper 

 grooves may occur. 



Hinge-plate wide. Two cardinal teeth in each valve, and one lateral tooth 

 next the lunule in the left valve. Adductor impressions deep, the anterior some- 

 what elongated. Pallial sinus shallow, rounded. Margins of valves smooth. 



Measurements : 



(3) (4) (5) 



44 . 42 . 39 

 41 . 43 . 37 



(1-8) Blackdown. 



Affinities. — This species is closely allied to A. (Eriphyla) lenticularis (Goldfuss), 1 

 but the outline of the valve is less regularly orbicular. 



Astarte Koninclci, d'Archiac, 3 from the Tourtia of Tournay, was regarded by 

 d'Orbigny, Pictet and Campiche, Stoliczka, and Geinitz as a synonym of A. striata. 

 I have not seen any example of the former, but it appears to differ from A. striata 

 in having less prominent umbones, more inflated valves, a more regularly orbicular 



1 'Petref. Germ.,' vol. ii (1840), p. 228, pi. cxlvi, fig. 16. Holzapfel, 'Zeitschr. d. deutsch. geol. 

 Gesellsch.,' vol. xxxvi (1884), p. 458, pi. vi, figs. 1, 2, and ' Palceontographica,' vol. xxxv (1889), 

 p. 195, pi. xiv, figs. 5-7. 



2 'Mem. Soc. geol. de France,' ser 2, vol. ii (1847), p. 302, pi. xiv, fig. 4. 





(i) 



(2) 



Length 



, 46 



. 45 



Height . 



45 



. 42 



(6) 



(7) 



(8) 



37 , 



. 35 . 



28 mm. 



34 



. 34-5 . 



27-5 „ 



