ZENOMETRINAE 



iSS 



Eumorphometra fraseri, n.sp. (Plate IV, fig. 2) 



St. 1955. 29. i. 37. North of South Shetland Islands. 61° 35-1' S, 57° 23-3' W. 440-410 m. 

 Gear DRR. One specimen. 



Description. No arm is complete ; the longest is of 44 brachials, 28 mm. long. 

 The centrodorsal is a high and pointed cone with a sharp and rough dorsal pole. The 

 ventral edge of the centrodorsal is produced into low corners interradially. It is thickly 

 covered with cirrus sockets. 



Fig. 7. Eumorphometra fraseri. </, cirrus. 6, proximal part of a ray. f, Pa. d,^.^. e, ambulacral skeleton of 



distal pinnule, a-d, x 13 ; e, x 66. 



Cirri XLV, 34-40, arranged in slightly irregular closely placed columns, three to each 

 radius, two to four cirri in each column. The peripheral cirri appear to be slightly 

 longer than the more apical, about 12 mm. long. 



The first, second and third segments are about twice as wide as long (Fig. 7 a). The 

 third segment is wider distally than proximally, the greater width being on the dorsal 

 side, and it is waisted, more strongly on the dorsal than the ventral side. The fourth and 

 fifth segments are of similar shapes but the fourth is more than half as long as wide and 



5-2 



