86 " ENDEAVOUR " SCIENTIFIC RESULTS. 



granules .30-. 90 mm. in diameter, among which are a few 

 insignificant, minute plates ; the granules are low, hemi- 

 spherical, with rough, or prickly surface. Radial shields 

 approximate in pairs, 10-12 mm. long by 2-2.5 mm. wide 

 distally, more or less concealed. Arms sharply distinct from 

 disk, the dorsal surface and sides covering by alternating 

 half-circles of glassy hook-bearing, and opaque, smooth 

 granules ; the half-circles are not at all sharply defined under 

 a lens but nevertheless give an appearance of fairly uniform 

 annulations. Genital sHts only about 2 mm. long, but quite 

 wide. Madreporite small but very distinct, just outside the 

 mouth frame ; in the holotype, there are two, not in adjoining 

 interradii, but one is evidently smaller and out of place. Oral 

 surface and lower surface of arms, uniformly and finely 

 granulated. Teeth, teeth-papillae and mouth-papillse numer- 

 ous, similar, spiniform ; teeth somewhat larger in every way 

 than the others. First tentacle-pore of arm with 3 or 4 short, 

 stout, spinulose tentacle-scales ; second with 6 or 7, third 

 with 8, succeeding pores with 8, 9 or 10, nearly to middle of 

 arm, when the number begins to drop rapidly and the scales: 

 become more and more Hke the hooks on the lower ends of the 

 half-circles of hooks, until at the tip of the arm the tentacle- 

 scales are no longer distinguishable. Colour (in alcohol), 

 brownish-yellow ; when dry, considerably Ughter. Four 

 specimens. 



This is a very distinct species, remarkable for the large 

 number of tentacle-scales. The disk covering too is character- 

 istic, obviously different from that of any of the previously 

 known species. The genus is an East Indian one, reaching 

 Sagami Bay, Japan, on the north and now shown to reach; 

 Tasmania on the south. The specimens from off Cape Everard,. 

 Victoria, are only 9 mm. across the disk and the maximum 

 number of tentacle-scales seems to be 7. 



Locs. — East of Flinders Island, Bass Strait, 80-300 fathoms.. 

 South-east of Cape Everard, Victoria, 200 fathoms. 



Family OPHIACANTHID^. 



Genus Ophiacantha, Miiller and Troschel. 



Ophiacantha heterotyla, H. L. Clark. 



Ophiacantha, heterotyla, H. L. Clark, Mem. Austr. Mus., iv., 

 11, 1909, p. 542. 



This is a little individual, not 3 mm. across the disk, but 

 there seems no doubt of its identity. 



Loc. — Between Devonport and Launceston, Tasmania. 



