348 APPENDIX. 



Asterogonium granular e. Asterias granulans, Retz. 

 Bis. Muller, Zool Ban. t. 92. /. 1. 



Pentagonal, sides rather concave. 



Back bright crimson, oral surface yellowish, marginal 

 ossicules oblong, || on each side, rather convex, covered, 

 except at the most convex part of the upper and lower 

 surface, with very minute granules. 



Dorsal ossicules hexagonal, flat- topped, with short flat- 

 topped granules. Ossicules of oral surface similar, but 

 granules larger. 



Inhab. — N. Sea. British Museum. 



This species is very like Tosia australis, but is at once 

 known from it by the granules covering the greater part of 

 the surface of the marginal ossicules. 



B. — Back rather convex, the marginal and dorsal ossi- 

 cules, with a small central convexity or roundish tubercle, the 

 granules of the oral surface rather elongate, rounded. 



Asterogonium tuberculatum, n. s. 



Body pentangular, sides concave, arms rather produced, 

 acute, tapering. 



The ossicules of the dorsal surfaces of the upper and 

 lower marginal series, each furnished with a small central 

 rounded tubercle. 



Marginal ossicules f § on each side ; the dorsal tubercles 

 on the middle of the back and down the centre of each arm 

 rather larger. 



Inhab.— Port. Natal. 



C. — Body fiat ; the ossicules of the dorsal, marginal, and 

 oral surfaces entirely covered with rather elongated uniform 

 granules. Marginal ossicules small, erect, rounded above. 



Asterogonium paxillosum, n. s. 



Blackish (perhaps discoloured); pentagonal, flat ; arm 



