DESCRIPTIONS OF NEW SPECIES OF UPPER PALEOZOIC 

 FOSSILS FROM CHINA. 



By Cteorgp: II. Girty. 



Custodian of Carboniferous Incertehrate Fossils, United Stales Xafional Museum. 



The Carnegie Expedition to China, in charge of ]Mr. Bailey Willis, 

 obtained a small number of Carboniferous fossils, which were placed 

 in my hands for study. My report was finished over a year ago, 

 })ut the publication of the paleontologic results has been held up for 

 the completion of another portion of the investig-ation. As an indefi- 

 nite, perhaps a long, time may elapse before the full report passes the 

 press, it seemed desirable to fix such species as appeared to be new by 

 a preliminary pnl)lication of the descriptions, to be followed by the 

 reprint with illustrations in the final report. 



CCELENTERATA. 



LONSDALEIA CHINENSIS, new species. 



Des(Tij)t'i(m. — This species occurs in lai'ge masses, one fragmentary 

 specimen having a length of 18 mm. and a width somewhat greater. 

 The corallites are irregularl}^ polygonal, so that it is diflicult to name 

 an average size, unusual length in one direction being compensated by 

 narrowness in another. Perhaps 8 mm. represents the average in 

 nearl}^ sj-mmetrical corallites. 



Our specimens do not separate into constituent cells, but break 

 across the walls. In sections the latter appear to be rather thick, with 

 denticles projecting inward from both sides, and a dense median line. 



Structurally each corallite is made up of three zones inclosed within 

 an outer wall. The external zone consists of vesicles without septa, 

 the median of septa and tabuhe, while the center is occupied by a 

 pseudocolumella having a vesicular structure. The outer zone, which 

 is rather thick, is formed bv large cysts, which, as usual, present the 

 convex side upward and slope strongl}" downward toward the center. 

 The inner surface of this zone is well marked. The septate portion is 



Proceedings U. S. National Museum, Vol. XXXIII— No. 1557. 



37 



