52 POMPECKJ. JURASSIC FAUNA OF CAPE FLORA. [NORW. POL. EXI-. 



The sutures between the different joints, situated in depressed grooves, 

 are finely crisped. In the interpetalous regions rounded depressions occur 

 ("interarticular pores" H. Carpenter). Owing to these depressions, the smaller 

 and shorter joints are somewhat narrowed in the interpetalous regions from 

 above and below, whereas the larger joints are not subjected to any such 

 narrowing. 



The cirri-bearing joints ("nodal joints" Wyville Thomson) are not to be 

 found on the piece here figured. The upper articulating surface of the upper- 

 most (smaller) joint (PI. I. fig. 1, c, d.) which is developed to form a syzy- 

 gial surface, shows that the succeeding joint must have been a nodal joint. 



On the syzygial surface the petalous parts are separated by shallow, but 

 comparatively broad grooves. At the opposite end of the stem-fragment, the 

 remains of an ordinary articulating surface is to be seen. Here the inter- 

 petalous grooves are in the form of very narrow, scarcely depressed lines. 

 The coarse crenation of the broad low ridges surrounding the shallow petalous 

 furrows is scarcely interrupted by the grooves between any two petala. 

 The interarticular pores, mentioned above, communicate with these inter- 

 petalous grooves. 



Judging from the appearance of the interarticular pores, the piece figured 

 must have belonged to the upper part of a stem, as a comparison with the 

 living pentacrinites will show. It cannot, however, have come from the 

 immediate vicinity of the calyx, for the piece is destitute of the deep inward 

 curvatures in the interpetalous regions that are characteristic of this part of 

 the stem. 



Pentacrinus sp. ex. aff. bajociensis (d'Orb.) P. de Loriol was found 

 loose, without adhering rock, on July 12th 1896, at the margin of the glacier 

 northwest of Elmwood, and about 150200 feet above the sea. 



The piece is composed of dark, almost black calcite. 



Remarks. The relationship of the form described with Pentacrinus 

 bajociensis (d'Orb) P. de Loriol is most probably, in so far as this species is 

 known, a very close one. The piece figured by P. de Loriol (1. c. PI. 150, 

 fig. 9) in particular, bears a great resemblance to our form, if we leave out 

 of consideration the missing nodal joints of our specimen. The differences 

 between Ihis and the species described by Loriol, several pieces of which from 



