143 

 Genus DORYriUXLS. Roemkk. 



[Ety. : Dory, spear; kn'non, lily.] 

 (1854: Archiv. fiir Naturgesch., Jahr. XIX.. Bd. I., p. 207.) 



This gen iLs seems to be represented in the Hamilton beds 

 of this region by strong tegminal spines, which were fonnd 

 in tlie Demissa bed. (Fig. 24:, /.) The genus, as restricted 

 by Wachsmnth and Springer, has, to my knowledge, not 

 been recorded from so low an hoi-izon. 



The spinose tegminal plate ( Fig. 24. h ) and the calyx base 

 (Fig. 24, A) have not been identihed. 



Genus HABKOCRIXrs. D'Okb. 



[Ety.: Habros, splendid: krinon, lily.] 



(1851: Abracrimis^D'OrXnguy, — Cours eleni. de Paleont, Vol. II., Fasc. II., 

 p. 144. Hdhrocrinus (D'Orb.) Angeliu, — Iconographia crinoideorum, p. 3.) 



Basals three, eqnal; costals 2 x 5, the distichals support- 

 ing the arms. Anal interradial plate very large, heptagonal, 

 and followed by a second between two inter-brachials, 

 above which follow numerous other plates. Arms uniserial, 

 long, heavy, and simple throughout. 

 Habrocklnus pentadactylus. sp. nov. (Fig. 25.) 

 Distinguishing Cimracters. — Obconical form, uniformly 

 enlarging from base upwards; rather large basal plates; 

 large radials and smaller costals ; strong, carinate, rounded 



Fig. 25. Habrocrimis pentadactylus. Two specimens enlarged, with an analysis of 

 the calyx, (aj Anal interradius. The shaded portion is added from the smaller of the 

 two specimens. (Original.) 



