RHODOCRINUS. 217 



Remarks. — This little species appears to fall well within the limits of the 

 genus Taxocrinus as restricted by Wachsmuth and Springer. It is distinguished 

 from T. macrodactylus by various points, among others by the proximate columnars 

 being much higher and being uniform in diameter. The arms also seem relatively 

 much stouter. 



Close examination has proved the short synopsis of the species which I 

 originally gave to be incorrect ; the plates in the best of the specimens are very 

 difficult to distinguish, and it was only by tracing them out plate by plate that 

 their true relationship, as seen in the opposite halves of the fossil, could be 

 ascertained. 



2. Order— CAMERATA, Wachsmuth and Springer, 1885. 

 I. Family — Rhodocrinid^, F. Earner, 1855. 

 1. Genus — Rhodocrinus, ./. 8. Miller, 1821. 

 1. Rhodocrinus?, ? sp. Plate XXXI, figs. 3 — 3d 



Size. — A distorted cup measures 25 mm. by 12 mm. in transverse sections, 

 and the accompanying arm is 60 mm. long. 



Localities. — In the Museum of Practical Geology is a specimen (with its 

 reverse) from North Devon of a flattened dorsal cup with some expanded arms ; and 

 in the Woodwardian Museum from south-west of Sloly is the broken base of another 

 cup, which may, from its somewhat similar ornamentation, possibly belong to the 

 same species. 



Remarks. — Though the first of these specimens is not in a condition to permit 

 its identification, it appears distinct from any of the accompanying Crinoids. The 

 dorsal cup is large, and was probably deeply conical or subglobose, and composed 

 in large part of hexagonal plates arranged something in the style of Actinocrinus ; 

 but it is now so much flattened and cloaked by matrix that few of its plates can be 

 seen, and their exact arrangement cannot be traced. The plates that are visible 

 seem small and numerous, and they are marked with coarse nodules having a 

 stellate arrangement. From the margins of the cup a number of very slender and 

 long arms take their rise. Signs of only eight or ten of these arms remain, but it 

 appears probable that there were originally twenty, of which ten were small and 

 did not bifurcate, and ten were larger. These larger arms have more than five 

 rather narrow uniserial plates before their first bifurcation, after which the plates 



