BRYOZOA OF THE PHILIPPINE REGION 303 



Measurements. — 



a \ha =0.12 mm. v „ • fL2=0.56mm. 



Apertura , Zooecia -, 



1 lZa=0.16mm. Us =0.36 mm. 



Affinities. — The orifice of the ovicelled zooecia measures 0.14 by 

 0.18 mm. We have found only a dead specimen of this species, but 

 we believe it ought to be figured because of its distinctness from 

 others. 



Occurrence. — D. 5311. China Sea, vicinity of Hong Kong; 21° 33' 

 N.; 116° 15' E.; 88 fathoms; crs. S. Sh. 



Holotype. —Cat. No. 8052, U.S.N.M. 



Genus SCHIZOMAVELLA Canu and Bassler, 1917 



SCHIZOMAVELLA AMBITA Waters, 1889 



18S9. Schizoporella ambita Waters, Bryozoa from New South Wales, Annals 

 and Magazine Natural History, ser . 6, vol. 4, p. 77, pi. 2, fig. 7. 



1902. Schizoporella ambita Calvet, Bryozoaires marins de la region de Cette, 

 Travaux Institut de Zoologie Universite Montpellier, ser. 2, mem. 11, 

 p. 46, pi. 2, figs. 1, 2. 



We have found in different localities specimens close to the species 

 of Waters and that of Calvet but which could not be referred exactly 

 to either of them; we consider them provisionally as varieties and 

 we figure them. Not only are we not certain that Calvet's species is 

 identical with that of Waters but also a very fine specimen presented 

 by Miss Jelly shows different characters; the median avicularium 

 notably is oblique and frequently doubled. 



SCHIZOMAVELLA AMBITA var. GRANULOSA, new variety 



Plate 33, fig. 1 1 



The frontal is perforated by small tremopores separated by granu- 

 lations very close together. The area of the ovicell is much attenu- 

 ated but it is placed as in the figure of Waters. The operculum 

 does not resemble that of Waters. It is closer to that of Calvet, but 

 it is not transverse. Our specimens were living. 



Occurrence. — D. 5217. Anima Sola Island, between Burias and 

 Luzon; 13° 20' N.; 123° 14' 15" E.; 105 fathoms; crs. gy. S.; 17.2° C. 



Holotype.— Cat. No. 8059, U.S.N.M. 



SCHIZOMAVELLA AMBITA var. GRANULATA, new variety 



Plate 33, fig. 10 



The frontal is perforated by small tremopores separated by scat- 

 tered granulations. The other characters and notably those of the 

 ovicell are identical with those figured by Calvet. The specimens 

 were living. 



