ECHIXODERMA. 15 



AsTIHiToMA A6ASSIZI. 

 Astrotoma agassizii, Lyman, 111. Catal. Mus. C. Z. No. viii. II. (1*75), p. 24. 



Mr. Lyman calls attention to the coarse granulation on his single specimen, 

 which came from the Straits of Magellan ; the series now collected shows that the 

 granulation may be more or less obscured by thick skin. It is remarkable that the 

 species was not collected by the ' Gauss.' 



McMurdo Bay, 9G-120 fms. 



Specimens from off Coulman Island, and from 77 12' S., 1G7 27' E., 2 fms. seem 

 to be sufficiently different to lie regarded as varieties. 



R 2 



