340 



Y. OKADA : 



off Jôgashima in the Sagami Sea. Most of ooecial internodes give 

 off only three brandies each, instead of four as in the British specimens 



which were described by Harmer. 

 Measurements : 



mm. 



Diameter of zooeciopore o.o5 



Distance from aperture to aperture 0.3 



Breadth of zooecia 0.08 



Diameter of ooeciopore 0.04 



Greatest breadth of ovicell 0.36 



Length of ovicell 0.48 



6. Criniti sintplesc n. sp. 



Zoarium small, erect, dichotomously branching, attached to substratum 

 by basal joint, instead of rootlets. Internodes sub-cylindrical, broad at the 

 distal end and narrowing towards the proximal. Zooecia present in an 

 internode usually in an odd and occasionally in an even number. Formula 

 of a fragment : 



(S + ov. + $ + ? l + r* + x) 



(5 + *3 

 (7 + -v) 



Same of another fragment : 



(7 + ov. + I o + r 1 4- 2'' + r s + r z + x) 



(3+*) 



(S+ov. + S + r 1 + 3 > +x) 



(5+.r) 

 (9+*) 



From these formula; it will be seen that the number of zooecia in an 



