A REPORT ON THE CYCLOSTO VI ATOUS BRVOZOA OF JAPAN. 34 1 



internodc does not exceed seventeen in number and that most of the 

 branches stand out from the first zooecium on one side. Ooecial internodc 

 gives off two, sometimes four branches, in the part proximal from the 

 ovicell. Zooecia alternately arranged on sides, connate and immersed in 

 the greater part of their length ; their end prolonged into a short and some- 

 what narrowing tube, terminating with a circular aperture of 0.06 mm. in 

 diameter and opening forwards. End of branches not truncate, but pointed. 

 Joints usually colourless, sometimes faintly yellowish. Ovicell globular, with 

 minutely punctured surface, placed below the middle of terminal internodes. 

 Ooeciostome simple, short, slender, situated more or less laterally from 

 ooecial summit and adherent to zoarial surface by the dorsal side. Ooecio- 

 pore elliptical, 0.04 x 0.03 mm. large, with thin margin. Basis rami not 

 wedged in between the adjoining two zooecia, short and not quite 

 reaching up to the zooeciopore of the zooecium with which it is adnate. 

 Dorsal surface of entire zoarium convex, minutely punctured as on the 



ventral surface. 



Measurements : 



mm. 



Average length of zooecia 0.318 



Diameter of zooeciopore 0.06 



Distance from aperture to aperture 0.3 



Breadth of zooecium 0.08 



Ooeciopore 0.03 x 0.04 



Greatest breadth of ovicell 0.36 



Length of ovicell 0.48 



This new species is represented in the collection by a few number of 

 small colonies attached to an example of Stegoiwporclla magmi abris Busk, 

 which came from a spot off Jògashima in the Sagami Sea. The species 

 seems to agree somewhat with Crista sertnlaroidcs (Aud. & Savig.) in 

 most characters of zooecia, but differs from it in the internodal zooecial 

 number and in the shape of ooeciopore. 



