350 MB. G. BTJSK ON THE SPECIES OF CELLEPORA 



11. C. SOLID a, n. sp. 



Char. Zoarium ramose or globate, very irregular ; in the older 

 portions the zooecia are, as it were, all fused together, and coated 

 with a porcellanous deposit, so that all trace of openings is lost. 

 Zooecia (younger) barrel-shaped, wide above. Orifice quadrangular, 

 border entire ; the zooecium rises behind the mouth into an 

 obtuse conical process, usually presenting a small avicularium, 

 with a triangular mandible on the interior aspect. In front of 

 the mouth is a much larger, rounded, tumid prominence, on which 

 are, occasionally, placed a few very minute circular avicularia, 

 also with an obtuse triangular mandible. Occasional large inter- 

 spersed avicularia, with a broad, short, spatulate mandible. 



Sab. St. 160. Lat. 42° 42' S., long. 134° 10' E. ; 2600 fins., 

 red clay. 



The entire growth is solid and has a porcellanous aspect. 



Section II. 



12. C. simonejstsis, n. sp.* 



Char. Zoarium branched or massive and irregular ; surface 

 uneven, nodulated, or papillose. Zooecia deeply immersed and 

 ventricose, with a row of punctures round the border, and some- 

 times sparsely punctured all over. Orifice clithridiate [keyhole- 

 shaped] ; peristome thick, in the older stage annular or shortly 

 tubular. An obtuse avicularian process on one side close below 

 the orifice, with a broadly triangular mandible pointing upwards. 

 A few interspersed, minute, immersed avicularia with spatulate 

 mandible. 



Hal. St. 122. Lat. 9° 5' S., long. 34° 49' W. ; 400 fms., mud. 

 Simon's Bay. 



The oral valve is of the same shape as the orifice, and has a 

 pyriform thickening on each sidef. 



The small interspersed avicularia in the older parts of the 

 zoarium appear to be transformed zooecia of small size. 



13. C. PUSTULATA, n. sp. % 



Char. Zoarium cylindrical, irregularly branched ; branches 

 slightly tapering. Zooecia, in the younger portions, distinct, 

 ventricose ; walls entire, uneven. Orifice clithridiate ; peristome 



* " Chall. Eep." pi. xxviii. fig. 6 & pi. xxix. fig. 9. 



t " Chall. Rep." pi. xxix. fig. 9a. \ " Chall. Eep." pi. xxviii. fig. 8. 



