Hambach — Revision of the Blastoideae. 29 



'♦ Granatocrinites mihi, new genus. 



" This genus in some of its characters approaches Olivan- 

 ites and Pentremites, having like these genera tive double 

 rows of pores. It is distinguished from the Pentremites 

 by the absence of a column,* and by being destitute of the 

 five characteristic apertures upon which the generic name 

 of Pentremites is founded, and from the Olivanites by the 

 division of the fields between the ambulacrals which in the 

 Granatocrinites is composed of three plates and which is 

 not the case with the Olivanites. 



" Granatocrinites cidariformis mihi. 



PI. III., Fig. 1, 2, 3. 



♦' Globular slightly elongated. 



" Pelvis more or less stellated or pentagonal, composed of 

 small plates, forming a small concave dome without any marks 

 of insertion of a column or of an appearance of an alimentary 

 aperture. The five plates which surround the pelvis are 

 elongated sub-pentagonal approaching in form similar plates 

 in the Pentremites, their superior margin being circular and 

 having a longitudinal incision which terminates near the 

 base, where they form the margin of the pelvic cavity and 

 thence rising they enclose partly the double rows of pores 

 which descend from the summit and terminate near the 

 lower margin. 



" These five plates combined form a cup with five circular 

 elevations at the rim, re-entering angles of which are placed 

 five isosceles triangular plates being beveled at the base so 

 as to fit the rounded margin of the inferior plates. f 



" Five double rows of pores proceed from the very summit, 

 running along the triangular plates above mentioned and 



* This I must contradict, as the Doctor certainly has overlooked alto- 

 gether the very plainly marked articulation surface of the column to be seen 

 on his specimen. 



t Footnote : As given in Troost MSS. 



