Clark — New Recent Indian Crinoids. 151 



cirri stout, but only the bases preserved. The topmost columnars are 

 ] mm. long by 0.5 mm. in diameter; those in the middle of the stem are 

 4 mm. long by 1 mm. in diameter, while the squarish ones at the distal 

 end are 2 mm. long ; the last seven or eight are 3 mm. long with oval 

 ends the faces of which measure o mm. by 1 mm., the two faces of each 

 columnar being approximately at right angles to each other. 



Bathycrinus paradoxus sp. nov. 



Type. — Cat. No. "V^, Indian Museum; Bay of Bengal; 1,300 fathoms. 



The material consists of two broken specimens; one stem, apparently 

 lacking merely the topmost discoidal columnars, 67 mm. in length (thirty- 

 eight columnars), broken into five parts; part of a larger stem, including 

 the root and twenty-one columnars, and a crown without the distal por- 

 tion of the arms probably belonging to the latter. 



Nearest to B. recuperatus (Perrier). 



Stem very slender; longest columnars of smaller stem 2.5 mm. in 

 length ; of larger stem 3 mm. ; columnars of middle of largerstem 0.7 mm. 

 broad at the ends, 0.4 in the middle. 



Basals five, not anchylosed, forming a basal ring which expands 

 slightly anteriorly, and is about as long as the breadth at the top of the 

 stem ; radials forming a ring expanding rather rapidly outward from the 

 basals, the sides evenly concave, two and one-half times as broad distally 

 as proximally, half again as broad distally as long ; i Bri trapezoidal, 

 nearly twice as long as broad proximally; i Br2 trapezoidal, nearly twice 

 as broad as long. 



Arms ten, all broken off near the base, smooth, apparently similar to 

 those of other species of the genus ; i Br and lower brachials with a broad 

 thin produced border; distal two-thirds of the i Bn and the following 

 joints with a sharp median keel. 



