ASTARTE. 105 



Affimties. — A. miuata is distinguislied from other Cretaceous species of Astaiie 

 by tlie furrow passing from the umbo to the posterior margin. Conrad' thought 

 that this species might belong to his genus LirodiHciis. I am unal)le to express an 

 opinion on this matter, since I have seen only three examples, none of which shows 

 the hinge, nor is it seen in the figures given by previous writers. 



Type. — From the Aptian of Marolles (Aube). 



Distribution. — Lower Greeusand (Crackers) of Atherfield. Recorded by Pictet 

 and Renevier from the Lower Greensand of Peasmarsh. 



AsTARTE UPWABENSis, sp. nov. Plate XIV, figs. lOa-r, l\a, b, 12. 



1883. AsTAETE, sp. uov., W. Keepimj. Foss., etc., Neoc. Upware aud Brickhill, 



p. 122, pi. vi. fig. 9. 



Description. — Shell ovate, a little higher than long, moderately and evenly 

 inflated, moderately (or sometimes only slightly) inequilateral. Dorsal half narrow- 

 ing gradually to the umbo ; ventral half larger and with evenly-rounded margin. 

 Antero-dorsal border slightly concave ; postero-dorsal border long and convex. 

 Umbones curving forward. Luuule large, ovate, depressed, with a sharp border. 

 Escutcheon lanceolate, with a sharp edge. 



Ornamentation consists of many flattened, inconspicuous, concentric ribs 

 separated by linear grooves. 



Affinities. — This species presents some resemblance to -I. nflangiensi.'i, Pictet 

 and Campiche,'- but its dorsal half is not so luirrow and pointed, and the antero- 

 dorsal margin is less concave. It is also similar to A. liliodani, Pictet and 

 Campiche,-' from the Gault of Gosne, but the umbones are less prominent. 



Astarfe npirar''nsis is distinguished from A. circiilaris, Gueranger,' by its ovate 

 outline and greater height. 



T!/2)e. — Of the specimens of this species which were figured by W. Keeping as 



' ' Amer. Jouru. Couch.,' vol. v (186it), P- 46. 



- 'Terr. Crct. Ste. Croix ' (Mater. Pal. Suisse, ser. 4, 1866), p. 303. pi. cxxiii, figs. 3. 4. 



3 De Loriol, ' Gault de Cosne ' (1882), p. 94, pi. xii, figs. 1-7. 



* • Album Palt'ont. de la Sarthe * (1867), p. 12, pi. xv, fig. 12, pi. xvi, figs. 7. 8. 



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