350 APPENDIX. 



Suborder 1. CYCLOSTOMATA. 



Earn. 1. TUBULIPORID^. 



1. TuBULiPORA^ Lamarck. 



1. T. phalangea. Couch. 



Hab. — Bass Strait^ 45 fathoms. 



A small, imperfect specimen, which may be referred to 

 the variety noticed in " British Zoophytes," and figured 

 PI. 46, fig. .3, 4. 



2. PusTULiPORA, Blainville. 



1. P. avstraliSj n. sp. 

 P. deflexa ? Couch. 



Branched dichotomously ; branches short, incrassated, 

 truncate. Cells wholly immersed, or about half free, 

 numerous ; surface minutely papillose, summits of papillae 

 of a dark brown or black colour. 



Hab. — Bass Strait, 45 fathoms ; and elsewhere in the 

 Australian seas. 



About half an inch high. The stem becomes thicker 

 as it ascends, and divides into two equal short branches, 

 each of which again subdivides into two short truncate 

 branches, in a plane at right angles to the primary divi- 

 sion. The cells in the upper part of the stem appear free 

 for nearly half their length, and are gently curved out- 

 wards. The surface is covered with pretty regularly and 

 quincuncially arranged minute papillae, the apex of each 

 of which is flattened or rounded, and of a dark brown or 

 black colour. The mode of subdivision of the polyzoary, 

 and the truncated ends of the branches, and the more 

 numerous cells, suffice to distinguish this species from P. 

 prohoscidea. The cells in the figiire of P. deflexa appear 

 to be much more slender in proportion, and the branches 

 in that species are not truncated, but attenuated at the 

 extremity. 



