BELONGING TO THE GENERA FILIGELLA AND AGIS. O 



They run up very near to tip of stem, but stop short of it. 

 The calyx, into which the anthDcodia can be completely withdrawn, 

 is conical, 1 mm. in diameter at base, not higher than 0.5 mm., and 

 is covered with spicules which resemble those of the general 

 cœnenchyraa but are smaller, those at the tip of calyx being smallest. 



The spicules of the base of tentacles are arranged trans- 

 versely, forming a complete ring ; they number 3-6, are curved 

 upwards, aud show weakly developed warts. The spicules of the 

 aboral side of tentacles, are similarly characterized but are arranged 

 longitudinally en chevron. They are 0.02-0.03 mm. in diameter and 

 0.23, 0.25, 0.26, 0.26, 0.27, 0.28, 0.31, 0,32, 0.36 mm. in length. 



The axis is entirely horny, soft, flexible, 0.25 mm. in thick- 

 ness and dark brown in colour. 



The spicules are white, probably due to the action of formalin, 

 in which the specimens have been preserved for nearly five years. 



Locality : south of Jogashima, Sagami Bay, 70 fathoms. 



There is another specimen in our museum which agrees well 

 with those above described, but differs in the color of the 

 cœneuchyma, which is pale brown. 



Locality : 5 kilometers south-west of Jogashima. 



This species may be readily distinguished from F. fiUform'is 

 (Wk. & St.) by the mode of ramification and by the size of the 

 spicules of operculum ; from F. flezilis (Hickson), by the size 

 of the spicules of cœnenchyma; and from F. gracilis Gkay, by the 

 denser occurrence of polyp- cells. 



The genus Filigella Avas established by Gkay on the basis 

 of a specimen of a Muriceid coral [F. gracilis) obtained on the 



