U74 



chiopoden, etc. Palaeontographica, 3, p. 191. pi, XXVII., fig. 3 ; 

 pi. XLIV., fig, 8. 



1865. AtJiyris conccntrica, Davidson : — Monogr. Devon. Brach., p. 14. pi. 



III., figs. 13, 16, etc. 

 \ 868. Spirigcra conccntrica, Dames :— Ueber die in der Umgeburig- 



Freiburgs in Nieder-Schlesien auftretenden devonischen Abia- 



gerungen. Zeitschr. d. deutsch. geol. Gesellsch., vol., XX., p. 



4f^6. pi. X., figs. 6 ar.d 7. 

 1871. AlJiyris conccntrica, Kavser ; — Die Brachiopoden d. Mittel— u. 



Oberdevon der Eifel. Zeitschr. d. deutch. gcol. Gesellsch., vol. 



XXIII., p. 547 and 548. 

 4884. Atliyris conccntrica, Ts:hernvsche\v : — Materialien zur Kenntniss 



d. devon. Ablagerungen Russlands, pi. I., fig. 21. 

 18S5. Spirigcra (^Atliyris) conccntrica, Roemer : — Lcthaea erratica. 



Palaontolg. Abhandl., 2, p. 83. pi. XXXIV., fig. 3. 

 1902. AtJiyris conccntrica, Hudleston : — Fossils from the Hindu- 



Khoosh. Geol. Magaz., Decade IV., vol. IX., p. 54. pi. III., fig. 2. 



AtJiyris conccntrica is one of the species of Brachiopoda which liave a 

 very great range of variation. As early as in 1S53, Schnur already recognized 

 the fact and subdivided the Eifelian specimens into four minor groups. Sub- 

 sequently Kavser included under the specific name not only all the four 

 species described by Schnur, but also such forms as A. vcntricosa Schnur, A. 

 gracilis S.andb. and A. cifcliensis Schnur as its varieties. Moreover, three 

 other varieties were ec|ually added to the li.st by him, namely, var. tnniida, 

 pcntagonalis and squamosa. It is with A. conccntrica s. s. of tliis natiu'al:st 

 tliat the Ciiinese fossils have been identified. 



There is quite a large number of spec'mens of the species at the writer's 

 disposal, all of them having been collectecl in the province of Kwang-hsi by 

 Prof. K. Yamad V of the Ky5lo Imperial University. They seem to have 

 originated at three different localities, as they are separated into three lots, 

 ■ each with a label bearing different numbers ; these localities, however, can 

 not be widely distant from one anothers, but rather very closely located. The 



