82 Bulletin 5 353 



294 CRINOIDEA. 



Length one inch and one-fifth ; greatest breadth 

 one inch and three-tenths. 



Description. Pelvis deep saucer-shaped, con- 

 vex ; longitudinal sutures without parallel lines of 

 increment, but these are very obvious at the ter- 

 minal margin : scapulars with the impressed lines 

 of increment very obvious at base, and near the 

 tip each side : ambiilacrcB with impressed lines 

 equidistant between the central line and the late- 

 ral series of pores. 



This large and fine species belongs to the Phi- 

 ladelphia Museum. It was brought from England 

 by Mr. Reubens Peale, who understood that it 

 was found in the vicinity of Bath. None of this 

 species, I believe, has yet been found in America. 

 The parallel lines of increment margining the su- 

 tures, distinguish this from the following species. 



2. P. Pyriformis. Body oblong, pelvis gradually 

 attenuated. 



Length from three quarters to one inch and a 

 quarter. 



This species is found in plenty in Kentucky, in 

 the same localities, and intimately intermixed with 

 the succeeding species ; it may be readily distin- 

 guished by the gradual attenuation of the pelvis 

 and contiguous parts, from the tips of the emar- 

 ginations of the scapulae, to the origin of the co- 

 lumn. The first specimen I saw, was dug up in a 

 garden at Reading, and was sent to my brother, 

 B. Say, under the name of " petrified althea bud." 



[J. A. N. S., Phila., ist Ser., Vol. IV, 1825.] 



