142 F. A. BATHER, CRINOIDEA OF GOTLAM). 



plate and is quite vertieal. The two posterior radials are rather smaller tlian the others, 

 and are slightly distorted by the interposition of the anal plates. 



The Arms spread out from the cup at an angle of from 4° to 10° with the hori- 

 zontal, and bend upwards on about IIBr g . The ossicles are low and wide; they had ap- 

 parently smooth rounded backs, but are too much worn for this to be certain. 



I r>r vary in height and number in the different rays; thns there is one in each of 

 the posterior, but two in each of the anterior rays. 



IIBr are 2 or 3. 



The remaining branches are traceable up to the septimibrachs; they are elongate 

 and rather fine. 



The ventral surface of the arms is unknown; but in VIIBr, at least, the covering- 

 plates were 2Y S to a brachial. 



Anal struetures: x not very clearly seen, but appears to be pentagonal, sup- 

 porting two plates of the tube. Rest of tube unknown. 



None of the Stem except a portion of an ossiele is preserved. Axgelin's deserip- 

 tion was probably based on Taxocrinus dixtensus. 



Notes on Angelins figures: 



Tab. III, fig. 6. A rather ridiculous restoration with an imaginary stem. 



Tal). III, fig. 6 a. Also verv bad: the attachment of the stem is quite wrongly re- 

 presented, the anal x cannot be seen as there shown and the arms are not so elose-set as 

 this would make them out to be. 



Loeality: Probably from Fårö (f). 



Cyathocrinus longimanus. 



(Plate VII, figs. 234—242.) 



1H78 Angelin, Iconographia, p. 23, Tab. XX, figs. 4, 6(?), 7; non Tab. XXVI, figs. 4, 4 a — c, 5, 



5 a — b. 

 1878 Cyathocrinus ramosus Angelin, op. cit. Tab. XX, figs. 2, 3; non fig. f. 



Diagnosis. 



Dorsal Cup with height about 3 / 4 width; with sides slightly curved and directed at 

 an angle of 15 — 20° to the vertical. IBB nearly as high as wide. BB as high as wide. 

 UK nearly as high as wide. Cup-plates very slightly swollen. Arms dichotomise regu- 

 larly down to VTBr, are fairly stout and curve gently. Arm-ossicles rounded. Covering-plates 

 3 V a to 4 to a brachial, unornamented, in four rows of alternating pieces. Ventral sac 

 nearly half the length of the arms, broad, and composed of rather large, wide and fairly 

 regular plates with plane surfaces. Stem rather wide, with very low ossicles. 



A\gelin's diagnosis of this species, when translatcd into modern tcnninology, runs 

 as followg. Ventral sac thick; its plates plane or subconcavc, 6- or 7-sided, with crene- 

 late margins. Arm-ossicles shagreened; covering-plates very short and conical. 



