REPORT ON UPPER PALEOZOIC FOSSILS FROM CHINA. 311 



Fusulina sp. 



This species is represented by a silicified specimen embedded in chert, which 

 has been so broken as to expose a nearly true cross-section. The maximum diameter 

 is 4 mm. The volutions are 5 in number. About 35 partitions divide the outer 

 volution, some of which are plicated. The specific relations are clearly undeter- 

 minable from the material at hand, but the form is important as indicating the 

 geologic age. 



Locality and Horizon. -Pennsylvanian ; near Ts'ai-kia-chuang, Shan-tung 

 (station 59). 



Schwagerina sp. 



This species was obtained at several points, but in view of the profusion with 

 which fusulinoid types are wont to occur it is sparingly represented. The shape is 

 subspherical, the diameter of a large specimen being about 5 mm. and the length 

 somewhat greater. From 30 to 35 septa are developed in the course of one of the 

 outer volutions. The finer structures seem to have been lost in preservation, the 

 original punctation, for instance, having been entirely obscured. 



Locality and Horizon. Pennsylvanian (Wu-shan limestone) ; near Ta-ning-hien, 

 East Ssi-ch'uan (stations 2 and 3). 



Zaphrentis ? sp. 



In the cherts of Shan-tung (station 59) was obtained a single specimen of a 

 zaphrentoid coral not determinable as to its generic position. It is small and very 

 gradually tapering, the greatest diameter being probably only a little over 5 mm., 

 while the length appears to have been not much over 10 mm. The calice was deep. 

 The number of septa is not easily counted, but there were about twenty, of equal 

 size, extending nearly or quite to the center. A relatively small amount of dissepi- 

 mental tissue was developed. 



Locality and Horizon. Pennsylvanian; near Ts'ai-kia-chuang, Shan-tung 

 (station 59). 



Lonsdaleia chinensis Girty. 



Plate 27, Figures 1-3. 

 Lonsdaleia chinensis GIRTY, 1907, Proc. U. S. Nat. Mus., vol. xxxm, p. 37. 



This species occurs in large masses, one fragmentary specimen having a length 

 of 1 8 mm. and a width somewhat greater. The corallites are irregularly polygonal, 

 so that it is difficult to name an average size, unusual length in one direction being 

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

 in nearly symmetrical 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 

 tabulae, while the center is occupied by a pseudocolumella having a vesicular struc- 

 ture. The outer zone, which is rather thick, is formed by large cysts, which, as 

 usual, present the convex side upward and slope strongly downward toward the 

 center. The inner boundary of this zone is well marked. The septate portion is 

 clearly defined and has a nearly circular shape, irrespective of the asymmetry of the 

 corallite as a whole. This portion is rather constant in size, and in few instances 

 does it attain a diameter of more than 4 mm. The septa, which number from 25 



