37. Spine, lower surface 
38. Spine, upper surface } from the ocular and genital plates. 
39. Spine, profile 
40. Spine, lower surface ; 
Al tie, Garena: ; from the ocular and genital plates. 
42. Spine, side view . 
“Sie Sess i from the ocular and genital plates. 
44, Spine, lower surface 
45. Spine, top view 
46. Spine, 
47. Spine, > spines, hidden by the big radioles, as seen in fig. 1. 
48. Spine, 
The figures are about equally magnified except 2, 3, 5, 8, and 46, which are enlargements 
of adjoining figures in outline. The largest radioles at the ambitus measure 15-18 mm. 
i from the ocular and genital plates. 
in length. 
Outer reef, Fakarava, Paumotus, “ Albatross ” Ex., 1899-1900. 
