12 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 60 



IIBr 4(3 + 4) series bears instead of a pinnule a slightly undersized 

 arm the first division series of which consists of five ossicles all ap- 

 parently united by synarthry and none bearing pinnules ; this carries 

 two IVBr series, both 4(3 + 4) ; the arms have a knotty and irregu- 

 lar appearance, which is probably due to parasitization ; P 1 is from 23 

 mm. to 25 mm. long, very stout, tapering gradually to a delicate tip, 

 and composed of from twenty-five to twenty-seven segments. 



ZYGOMETRA COMATA (A. H. Clark) 



Zygometra comata 191 1. A. H. Clark, Australian Museum Memoir IV, p. 

 762 (footnote). 



I. Hong Kong; A. Wider, 1888. — One small specimen with twenty 

 arms ; I cannot see that it differs from specimens from Singapore. 



EUDIOCRINIS VARIEGATUS (A. H. Clark) 



I. No Locality; C. Ebcrstcin. — One rather small and immature 

 specimen, which may be described as follows : 



The centrodorsal is thin discoidal with a flat dorsal pole 1 mm. in 

 diameter ; the cirri are arranged in a single irregular marginal row. 



The cirri are XVII, 14-15, 5 mm. long; the fourth and fifth seg- 

 ments are the longest, very slightly longer than the proximal 

 diameter ; the second to the fifth are centrally constricted with widely 

 flaring distal ends which project strongly dorsally; this rapidly de- 

 creases distally and disappears after the eighth. 



The distal border of the radials is slightly swollen, smooth or 

 finely beaded ; the proximal border of the IBr x is slightly everted, and 

 bears a small but prominent median tubercle ; the distal edge is also 

 everted, the eversion being thickened and slightly produced in the 

 center ; the proximal oblong brachials have the distal edges very 

 slightly turned outward and slightly thickened in the center; the 

 arms beyond the proximal discoidal brachials have a smooth dorsal 

 line and apparently lack the usual zigzag carination. 



The five arms are 40 mm. long. 



The disk is completely plated. 



The pinnules of the first pair are 3 mm. long and consist of nine 

 segments which at first are short, becoming about as long as broad on 

 the third and nearly three times as long as broad terminally; the 

 first segment has a high rounded carinate process which is nearly 

 half as high as the lateral diameter of the segment ; the second has a 

 carinate process which is not quite so high, and which has a straight 

 distal border parallel to the median axis of the segment; the third 



