REPORT ON THE CRINOIDEA, 807 



each ray in the following order — 2,1; 1,2; or 2,1,1; 1,1,2, the axillaries being limited 

 to the outer arm of each successive pair. Primary arms of one to three (usually two) 

 distichal joints, which are united by syzygy. Secondary arms of two to seven palmar 

 joints, usually three. There may be one, or more rarely two, further divisions, which 

 are usually of three joints each, but may have five or six. 



The first two joints after each axillary are united by syzygy, the epiz}'gal, when not 

 itself an axillary, bearing the first pinnule. No other syzygies on the arms, which 

 consist of about one hundi'ed smooth, oblong joints, the lowest of which have flattened 

 sides, and are sometimes more or less tubercular, while the outer ones overlap slightly. 

 The first pinnules are somewhat longer and stouter than the following ones, after which 

 the size again increases. The pinnules have a smooth, sharp dorsal edge, and are generally 

 composed of flattened joints, the lowest of which are slightly wider than their successors, 

 and are sometimes markedly prismatic. 



The disk bears numerous scattered calcareous granules, but no regular pavement of 

 plates, and there is no plated perisome between the rays. Arm-groove moderately wide, 

 and closely covered by numerous, small, irregular plates. Pinnule-ambulacra have 

 covering plates and Ul defined side plates. 



Colour in spirit, white or brownish-white, somewhat darker on the pinnules. 



Localities. — Guadeloupe, St. Croix, St. Thomas, Barbados ; between Saba and 

 Eustatius Islands, 531 fathoms (Captain Cole). 



The dredgings of the U. S. Coast Survey steamer "Blake," cruise of 1877-78, oft" 

 Havana; 175 fathoms. 



Cruise of 1878-79. No. 100, ofi" Morro Light ; 250 to 400 fathoms. No. 101, off" 

 Morro Light ; 175 to 200 fathoms. No. 157, ofi"Montserrat; 120 fathoms. No. 171, oft" 

 Guadeloupe; 183 fathoms; bottom temperature, 5 5|^° F. No. 193, off" Martinique ; 169 

 fathoms; fine sand, dark mud, and shells; bottom temperature, 51° F. No. 218, off 

 St. Lucia; 164 fathoms; bottom temperature, 56° F. No. 269, off St. Vincent ; 124 

 fathoms ; bottom temperature, 57^° F. No. 274, off Barbados ; 209 fathoms ; fine sand 

 and ooze ; bottom temperature, 53^° F. No. 280, off St. Charles Lighthouse, Barbados ; 

 221 fathoms; Globigerina sand; bottom temperature, 50i° F. No. 283, off Barbados; 

 237 fathoms; hard bottom; bottom temperature, 49° F. No. 291, off Barbados; 200 

 fathoms ; flat calcareous stones ; bottom temperature, 49f ° F. No. 295, off" Barbados ; 

 180 fathoms ; hard bottom ; bottom temperature, 50|°F. No. 296, off Barbados; hard 

 bottom ; 84 fathoms ; bottom temperature, 61^° F. No. Y. (Bartlctt), Santiago de Cuba ; 

 288 fathoms. 



Remarks. — This species was discovered by the Danish naturalist Oersted, who brought 

 an example to Europe from the Danish possessions in the West Indies. It was exhibited 

 in the year 1856 at the meeting of Scandinavian naturaHsts in Christiania,^ and a brief 



I Forhandl. Skand. Naturf., 7'^' Mode i Christiania, 18CG, p. 202. 



