1888.] NATURAL SCIENCES OF PHILADELPHIA. 131 



SOME NEW SPECIES OF FOSSILS FROM THE NIAGARA SHALES 

 OF WESTERN NEW YORK. 



BY EUGENE N. S. RINGUEBERG M. D. 



In the following descriptions of seven new species from this vicin- 

 ity will be found representations from the three divisions of the 

 Niagara Shale including three genera which I believe to be new to 

 the Niagara of this State i. e. Mariacrinus, HijoUthes, and Plumuli- 

 tes. The specimens were all collected at Lockjiort and the types 

 are in my collection. 



Buthotrepis greg-aria. (n. sp.) PI. YII, fig. 1. 



Plants small, gregarious, each separate plant growing in an irregu- 

 larily radiating manner from a central ix)int, commencing in several 

 original trunks which rapidly branch out without any system or 

 observable regularity, by bifurcations and lateral shoots. Diameter 

 of the radiating fronds as spread out, from two to three and at times 

 four c. m. It is however hard to get accurate measurement on 

 account of the habit of this fucoid of growing in little clumps con- 

 taining many individual plants, whose branches often interlace in 

 a confusing manner. Its growth in different directions is rather 

 irregular ; sometimes one branch seems to out-grow all the rest, or 

 again two opposite will spread out till the plant is twice as wide in 

 one direction as in the other. The radiate arrangement, however, 

 seems to be quite constant. Thickness of the branches averages 

 about one millimeter. 



This curious little fucoid is readily recognized by its radiate growth, 

 which together with the size of the branches seems to be quite in- 

 variable — -and also by its habit of growing in little clumps, occasion- 

 ally specimens may be found which seem to grow upon the branches 

 of some of the stouter fucoids; such as Buthotrepis gracilis var. 

 crassa, Hall. 



Found in the harder shale bands from the' middle third of the 

 shale at Lockport N. Y. 



Inocaulis anastomotica (n. sp.) PL VII, fig. 2. 



Frond flabelliform or possibly circular or cyathiform in the per- 

 fect state. 



It is composed of large coarse branches, the principal ascending 

 ones of which are from two to three millimeters in width, with 

 smaller lateral branches and tips. Whole frond united by frequent 



