Clark — Six New East Indian Crinoids. 83 



r 



slightly more produced and turned outward; the axil laries form a broad 

 inverted "V"; the lateral edges, which are half again as long as those 



of the I I>n are, like them, turned outward and are straighl or hear two 

 or three broad scallops; the lateral thirds of the proximal border are 

 produced and extended downward over the distal border of the i Bn with 

 a scalloped or tubercular edge which is nearly parallel to the correspond- 

 ing distal face; the distal sides of the axillaries are plain and unmodified. 



The ten arms are about 40 mm. Ions; the first brachial has the proxi- 

 mal and distal edges parallel, the outer edge slightly produced and faintly 

 scalloped, the inner edges in apposition, in their distal half everted and 

 scalloped; a similar distance of the inner portion of the distal edge is 

 similarly everted and scalloped, and the internal distal angle is rounded, 

 so that the inner distal angle is produced into a rounded thin scalloped 

 process; the proximal and distal borders, other than above described, are 

 unmodified; the second brachial is about as large as the first, slightly 

 wedge-shaped; the distal edge is everted and stands out at right angles 

 to the dorsoventral axis of the arm as an enormous thin rounded or 

 fan-shaped crest with a rounded or broadly scalloped edge, sometimes 

 divided in the middle, which may reach 1.5 mm. in height, or three or 

 four times the greater (outer) length of the ossicle; the proximal outer 

 corner of the ossicle is slightly produced over the distal outer corner of 

 the first brachial, and is scalloped or slightly tuberculated ; the produced 

 inner distal angles of the first brachials reach as far as the base of the 

 distal crest on the second; the third brachial (the hypozygal of the first 

 syzygial pair) is oblong, unmodified, very short, five or six times as broad 

 as long; the fourth brachial (the epizygal of the first syzygial pair) is very 

 short, oblong, little if any larger than the preceding brachial, but with 

 the distal border everted and produced into an enormous crest similar 

 to, and nearly or quite as large as, that on the second brachial; the fifth 

 brachial is slightly wedge-shaped with a crest about half as high as that 

 on the preceding brachial and more irregular; the sixth brachial has a 

 strongly produced and thickened distal edge which is coarsely scalloped; 

 the seventh brachial is slightly wedge-shaped, two to two and one half 

 times as broad as long, unmodified, with the distal edge slightly produced 

 and finely spinous; after the tenth or twelfth the brachials become trian- 

 gular, about as long as broad, and after four or five more very obliquely 

 wedge-shaped and longer than broad, less obliquely wedge-shaped and 

 longer distally ; the brachials beyond the sixth are almost smooth, with 

 only slightly produced and finely spinous distal ends. 

 Type locality. — "Siboga" Station No. 122. 



