APPENDIX. 345 



The ossicules of the oral side four or six-sided, rather 

 irregular, minutely granular, each armed with a central com- 

 pressed acute mobile spine. 



Inhab. — Japan ? 



This species most nearly resembles a fossil found in the 

 chalk, which has hitherto been referred to the genus Tosia, 

 and will be figured in Mr. Dixon's forthcoming work on the 

 Fossils of Worthing. 



I have dedicated this fine species to my daughter, 

 Mrs. J. P. G. Smith, who, before her marriage, com- 

 menced a series of plates to illustrate a monograph of 

 this genus. 



Anthenea, Gray. 



This genus may be divided into two sections, one having 

 a very large two-lipped pore on each ossicule of the oral 

 surface, the back netted, chaffy, as A. chinensis, and the 

 following new species : — 



Anthenea tuberculosa, n. s. 



Back obscurely netted, rather chaffy, with scattered large 

 flat backed tubercles. 



Marginal ossicules with some moderate granules; the 

 upper ossicules with one or more large flat-topped tubercles 

 on their upper part. 



Inhab. — Port Essington. 



This species is very like Anthenea chinensis, Gray, Aster ias 

 pentagonula, Lam. ? but differs from it in being more convex 

 and netted, and more distinctly tubercular, and in the upper 

 marginal tessera being armed with tubercles. 



Like the Chinese species, all the ossicules, both margi- 

 nal and discal of the oral surface, are furnished with large 

 elongated two -lipped pores. 



The second section contains the following species, which 



