258 SYSTEMATIC PALEONTOLOGY 



of Plate CVI, in the Challenger Eeport and may be considered as typical 

 for the species. This is not a common form and only three specimens 

 have been obtained at Woodstock and only a few are fonnd in the Mio- 

 cene of Darlington, S. C, nearly all of which are imperfect specimens. 



In existing oceans this form is commonest on bottoms of less than 30 

 fathoms depth and is rare below 300 to 400 fathoms. It is more fre- 

 qnent in warm tropical waters. As a fossil it has been varionsly de- 

 scribed from the Tertiaries of Enrope, among them being the Eocene of 

 the Paris Basin (Terqnem), Upper Eocene of the Swiss Alps (Kanf- 

 mann), etc. 



Occurrence. — ISTanjemoy Foemation. Woodstock. 



Collection. — Johns Hopkins University. 



PLANTAE. 



Caepolithus maeylandicus n. sp. 



Plate LXIV, Eigs. 11, 11a, lib. 



Emit irregularly ovate, about -| inch long, broadest at the base, 

 4-valved (?); valves separating completely to the base; epicarp rough, 

 somewhat warty, wrinkled or ridged longitudinally, about 1-16 inch 

 thick, distinct from the smooth pericarp; seed cells about f inch long 

 by -J inch broad, attenuate towards the apox of the fruit and rounded 

 at the base. 



('AKi'oi.rpiiis MAin'LAMHCi'S VAE. lU'OOSvs u. var. 

 Plato LXIV, Eigs. 12, 12a, 12b. 



Orbicular, about 7-lli inch in diameter, or loss: warty, but without 

 longitudinal markings; seed colls rolativoly broader to the length than 

 in tlu^ species. 



The material upon which the descriptions and figures of Carpolithus 

 are founded is exceedingly fragmentary, not one entire fruit being rep- 

 resented in the collection. The drawings of the complete fruits were 

 made by fitting together disoonneotod valves, and as those vary in size 



