44 BULLETIN 16 4, UNITED STATES NATIONAL MUSEUM 



Genus DALMANELLA Hall and Clarke, 1889 



DALMANELLA TESTUDINARIA (Dalman) 



Plate 34, Figures 9-12 



1828. Orthis testudinaria Dalman, Kongl. Vet.-Acad. Handl., for 1827, p. 115, 



pi. 2, fig. 4. 

 1847. Orthis testudinaria Hall, Palaeontology of New York, vol. 1, p. 117, pi. 



32, fig. 1 ; p. 288, pi. 79, fig. 4. 

 1863. Orthis testudinaria Billings, Geology of Canada, p. 165, fig. 144. 

 1869. Orthis testudinaria DA^^DSON, British Fossil Brachiopoda-Silurian, vol. 3, 



p. 226, pi. 28, figs. 13-24. 

 1882. Orthis testudinaria Whitfield, Geology of Wisconsin, vol. 4, p. 258, pi. 



12, figs. 5-7. 

 1884. Orthis testudinaria W^vlcott, Mon. U. S. Geol. Surv., vol. 8, p. 72, pi. 11, 



fig. 10. 



1892. Dalmanella testudinaria Hall and Clakke, Palaeontology of New York, 

 vol. 8, pt. 1, pp. 190, 206, 218, 224, pi. 5B, figs. 27-39. 



1893. Orthis (Dalmanella) testudinaria Winchell and ScHTTCHiatT, Minne- ' 

 sota Geological Survey, vol. 3, pt. 3, pp. 177, 241. 



1897. Orthis testudinaria Sardeson, Amer. Geol., vol. 19, p. 92. 



1903. Dalmanella testudinaria Wellee, Paleontology of New Jersey, vol. 3, 



p. 155, pi. 10, figs. 1, 2. 

 1913. Dalmanella testudinaria Weller, Research in China, vol. 3, Carnegie 



Inst. Washington Publ. 54, p. 283, pi. 25, figs. 12-16. 



The general characters and internal features of the several small 

 shells collected by Louderback from Szechwan, agree quite well 

 with representatives of the same species from North America. 



When Weller's specimens from the Ki-sin-ling limestone, Sze- 

 chwan, are compared with authentic specimens of D. testudinaria^ the 

 only Asiatic species thus far described, they appear on the average 

 smaller, shorter, and more compressed. Consequently, I believe 

 Weller's specimens may belong to another species or variety of 

 Dalvianella. 



Fonnation and locality. — Ordovician : Near Chao-tien, Szechwan, 

 China. 



PUsiotypes.—U.S.'^M. No. 83635. 



DALMANELLA (?) species nndetermined 



Plate 22, Figuees 11-13 ; Plate 23, Figuees 3-7 



A number of small brachiopod shells are in my Manchurian collec- 

 tion, the generic characters of which closely coincide with Dalma- 

 nella., but they are too poor to identify specifically. 



Shells small, subequally biconvex, semicircular in outline. There 

 is a more or less conspicuous, undefined median fold and sinus on the 

 pedicle and brachial valves, respectively. Surface covered with fine, 

 radiated bifurcating striae. U.S.I^M. No. 83636. 



