A NEW AMERICAN PENTREMITE 



By Charles Schuchert, 



0/ Yale University, Neiv Haven, Connecticut. 



The new American I^etitremitet^ here described was found by Dr. 

 S. W. McCallie, assistant State geologist of Georgia, in the Bangor 

 limestone of Georgia, and several months ago was forwarded to the 

 writer for description, and presented to the U. 8. National Museum. 

 Doctor McCallie has referred to the occurrence of this Pentremites in 

 his Report on the Coal Deposits of Georgia, " where notes on the stra- 

 tigraphy may be found. 



PENTREMITES MACCALLIEI, new species. 



Theca elongate, conical, and very large, having a length of 57 mm. 

 and a width or about 40 mm. Base inVerted-cone shaped, large, rapidly 



r 



Fig. 1.— a, The distorted specimen of Pentremites maccalliei slightly tilted so as to bring 



OUT MORE nearly THK NORMAL FORM. NATURAL SIZE. 6, SiDE VIEW SHOWING AMOUNT OF DIS- 

 TORTION. 



expanding, a little less than one-fourth the total length of theca, 

 deeply pentalobate and with the basal plates sharply delimited from 



*aGeol. Surv. Georgia, Bull. No. 12, 1904, p. 16. 



Proceedings U. S. National Museum, Vol. XXX— No. 1467. 



759 



