212 DEVONIAN FAUNA. 



Remarks. — There is no doubt of the specific identity of these fossils, but their 

 generic position is a matter of much difference of opinion. Originally referred to 

 Cyathocrinus, the species was made the type of a new genus by F. Romer, united 

 to Poteriocrinus by Mi'iller and by Schultze, first reunited to Cyathocrinus, and 

 then again separated under Romer's name by Wachsmuth and Springer, while 

 Bather, 1 who discusses the question fully, remarks, in conclusion, " As long 

 as the arms of this species remain unknown one cannot definitely say to 

 which genus it belongs ; it would probably be safer to place it in Parisocrinus, 

 but we may be quite certain that it has nothing to do with Cyathocrinus." In 

 1888 he informed me that it clearly did not belong to Poteriocrinus. It may be 

 observed that if it were rightfully joined to Parisocrinus? that name would 

 rightfully become a synonym of 8phgsrocri7ms, which was founded long before. 



None of our English specimens enable us to form a very clear conception of*its 

 anal arrangement. A rather large rhomboidal or subpentagonal radianal is 

 clearly seen, above which are two other anals, one of which is very small. None 

 of our specimens show any plates of the dome. The calyx is perhaps rather more 

 globose than in the German specimens, the circle of the insertion of the arms being 

 much smaller compared with the greatest circumference of the calyx. The English 

 specimens are sometimes much larger than the German, though the detached plate 

 figured by F. A. Rdmer, which evidently belongs to this species, very nearly 

 approaches them. 



In the Lee Collection in the British Museum are sixteen good calyces from the 

 Eifel, which agree with Schultze's figures in being much smaller in general size 

 than ours, and in having rather fewer enclosed triangles in the ornament (at most 

 three). One of them proves clearly that the cast from Lummaton belongs to this 

 species. 



Anal tube of a Crinoid? Plate XXIV, figs. 2, 2a. 



Remarks. — In the Torquay Museum is a specimen which apparently came from 

 Lummaton, and appears probably to be the anal tube of some large species of 

 Crinoid. It consists of an elongate subcylindrical tube, slightly recurved and com- 

 posed of rows of imbricated plates (of which seven rows are visible) raised along 

 their centres, so that seven longitudinal ridges are seen to run down its surface. 

 The arrangement of these plates does not seem similar to those of the large anal 

 t ubcs seen in species of Poteriocrinus from North Devon. Whether it belongs to the 

 same species as t he much shorter and more conical specimen from Newton, figured by 



1 L892, Cat her, ' Aim. Mag. Nat. I list.,' ser. (J, vol. ix, p. 20!). 



-' 1879, Wachsmuth ami Springer, ' Proc. Acad. Nat. Sci. Philad.,' p. 338. 



