232 



K. KINOSIIITA : ON A NEW ANTIPATIIARIAN 



two kinds may be distinguished : (a) branchlets probably homologous 

 with the pinnules of Bathypathes and Schizopathes, 14 cm. in maximum 

 length, 0.65 mm. in maximum diameter, arranged in two lateral 

 longitudinal rows at intervals of 2.5-6 mm., and mostly directed 

 obliquely above, the tips of these branchlets describing an ellipse 

 of 16 x19 cm.; (b) those which are directed horizontally and are 

 very densely set on the anterior surface of the stem in the same 

 parts as the former kind, some of them growing to a length of 10 

 cm., but the majority remaining quite short. 



The axis of all the branchlets has 6-9 longitudinal rows of spines 

 which are arranged at intervals of 0.35-0.6 mm. No definite mode of 



Fig. A Portion of the axis of a branch, viewed laterally, anterior 



side to the right (type), x 50 

 Fig. B Transverse section of a polyp through the peristomal 



projectien immediately beneath the tip (type). X50 

 Fig. C Portion of the axis of a branch of a larger specimen, 



viewed laterally, anterior side to the left, x 50 



