346 APPENDIX. 



have one or more small two-lipped pores on some of the ossi- 

 cules of the oral surface. The back sub tubercular, and the 

 ossicules all covered with large roundish granules. 



Anthenea granulifera, n. s. 



Both surfaces covered with small roundish granules, the 

 back with rather convex ossicules, the arms as long as the 

 diameter of the body ; back, with one or two scattered 

 tubercles. 



Var. back, with a blunt tubercle on the centre of each of 

 the ossicules of the middle of the back. 



Inhab. — Australia ? 



This species is easily known by the granules on the 

 surface, the length of the arms, and the small size of 

 the two-lipped pores, those of the dorsal surface are very 

 minute. 



Hosia spinulosa, n. s. 



Body flat, pentagonal, sides concave, arms not half the 

 length of the diameter of the body. 



Dorsal ossicules large, subequal, six-sided; very minutely 

 granular. 



Marginal ossicules .ig on each side, convex, deeply 

 separated from each other with a series of 2 or 3 small 

 acute spine-like tubercles in the centre of each. 



The ossicule of the oral surface flat, minutely granular 

 with small two-lipped pores. 



Inhab. — Indian Ocean. 



This species nearly resembles in shape the Tosia australis, 

 but is at once known from that species by the granular ossi- 

 cules, the spines on the margin, and the two-lipped pores 

 beneath. It differs from Hosia flavescens in being five- 

 sided instead of five-armed, and in having no spines on the 

 middle of the back. 



