EHYNCHONELLA CONCINXA. 65 



BRACHIOPODA. 



Terebratula biplicata Brocchi sp. 



Anomia biplicata Brocchi, 1814, ConcLiologia FossLle Subapenuina, p. 469, PI. x, fig. 8. 

 Terebratula biplicata Sowbrbt, 1815, iliu. Coiicli. Gr. Brit., I, p. 201, PI. xc, aud V, p. 53, PI. ccooLxxvii, 

 figs. 2, 3, 1825. 



" " D'Obbigny, 1847, Palcoiit. Prang., Terr. Cret., IV, p. 95, PI. dxi, figs. 9-15. 



" " D.wiDSON, 1852-55, Mouogr. Brit. Foss. Bracli., I, Pt. ii, p. 55, PI. vi, figs. 1-49. 



Three specimens, complete, of the form represented by Davidson's figures 

 8 and 9. Coll. Bird. 



Localil// and Position. — Vicinity of Abeih ; referred by Fraas to the 

 Glandai'ius zone of the Cenomanian, the lowest of his nine zones of Lebanon 

 strata. D'Orbigny speaks of the species as " caracteristique des couches les 

 plus inferieures de I'etage cenomanien." (loc. cit.) Davidson states that 

 in England it is found in the Gault, Upper Gi'eensand, and Lower Chalk ; 

 upon the Continent, in the Gault and Upper Greensand. 



Rhynchonella concinna Sowerby sp. 



Terebratula concinna Sowerby, 1815, Mill. Conch. Gr. Brit., I, p. 192, PI Ixxxiii, fig. fi. 



" " Vojf BucH, 1838, Class, et Desor. des Terebrat, Mem. Soc. Geol. France, III, p. 144, 



PL xiv, fig. 14. 

 Tthi/nchonella concinna D'Orbigny, 1847, Prodrome, I, p. 315. 



Dwinsox, 1851-52, Mouogr. Brit. Fo.ss. Bracli., I, Pt. Ill, p. 88, PI. xvii, tigs. 0-12. 



Five specimens, in the best condition and of typical form, admirably 

 figured by von Buch. Four adult, one younger. Coll. Bird. 



LocuUt// and Position. — Fraas recognized this well-known European 

 species in the Older Brown Jura bed of Mejdel esh Shems, whence these 

 specimens were probably obtained. D'Orbigny refers the species to his 

 Bathonian stage. Davidson mentions it as " abundant in the Great Oolite 

 of many localities in England." (loc. cit.) 



