230 DEVONIAN FAUNA. 



2. SCAPHIOORINUS THANsoiscis, n. sp. Plate XXXVIII, fig. 3. 



Description. Column at the base of the cup pentagonal, with very short 

 columnars. Dorsal cup conical, rather short, apparently consisting of five rather 

 large infra-basals, five large subhexagonal basals, five rather short radials, and 

 three anal plates, all very strongly ornamented by large, smooth, rounded ridges, 

 which radiate from the centres of the plates. Primibrachs 5 X 2 (at least in one 

 ray), short. Arms uniserial, with cuneate plates, bifurcating again a few plates 

 up. Ventral sac exceedingly large and heavy, composed of rather large and 

 high pieces. 



Size. Height of dorsal cup about 25 mm. 



Localities. A fragmentary portion of a calix and of the ventral sac from 

 Barnstaple is in the Woodwardian Museum ; and another similar specimen from 

 Pilton is in the Porter Collection. 



Remarks. These specimens are too imperfect for anything like a full 

 specific description. They appear most nearly to resemble S. plumifer, and I am 

 not certain whether they may prove to be more than a variety of it. As far, 

 however, as can be seen at present they seem to differ from it by their very much 

 larger size, and their much less elaborate ornamentation. The ventral sac is 

 exceedingly wide and massive. The individual plates are ornamented with five 

 or six large bars or costse radiating from their centres, without tubercles, in a 

 way very like some of the plates of Poteriocrinus crassus, figured by J. S. Miller. 



3. SOAPHIOORINUS ? INOEDINATUS, n. sp. Plate XXXIV, fig. 7 ? ; Plate XXXV, fig. 6, 



6 a; Plate XXXVIII, fig. 4. 



Description. Stem pentagonal near the cup. Columnars short, alternating, 

 with a central raised and perhaps nodulated band round their peripheries. Dorsal 

 cup probably bowl-shaped and rather shallow. Infra-basals indistinctly seen, 

 probably five, short. Basals five, small, polygonal. Radials five, large, convex, 

 truncated above. Primibrachs large, convex, the first (at least in four of the 

 rays) quadrate, the second pentagonal and axillary. Anal plates one in the first 

 row, large, elongate, apparently squeezed in between the basals, but prolonged 

 above them, bearing in the second row a large plate resting on its upper margin, 

 and a third above that. Surface coarsely rugose. Arms composed of elongate 

 quadrate plates, and bearing very long pinnules. 



Size. A flattened cup is about 7 mm. wide. 



Localities. In my Collection is a flattened specimen from Upcott Arch (on the 



