ASTEROIDEA 217 



Specimens examined. Including the above, 1 1 specimens. 



St. 156. South Georgia, south-east of Larsen Point, 260 m., mud, i specimen. 



St. 160. Near Shag Rocks, 177 m., grey mud, stones and rock, 2 specimens. 



St. WS 81. North-west of North Island, West Falkland Island, 81-82 m., i specimen. 



St. WS 85. Falkland Islands, 52° 09' S, 58° 14' W, 79 m., sand and shell, 2 specimens. 



St. WS 825. North-east of East Island, IFalkland Islands, 135-144 m., i specimen. 



St. WS 871. Falkland Islands, 53° 16' S, 64° 12' W, 336-341 m., i specimen. 



Remarks. At Sts. 156 and 160 Pedicellaster hypernotius was taken. There is consider- 

 able superficial resemblance between the two species. 



If the identification of the specimens listed as Anteliaster scaber (Smith) is correct, 

 aiistralis is a very different species. The spinelets of scaber are longer and the crossed 

 pediceilariae have a different form. 



Anteliaster scaber (Smith) 



(Fig. F, 4, 4«) 



Pedicellaster scaber Smith, Ann. Mag. Nat. Hist., ser. 4, xvn, p. 107 ; Phil. Trans., Zoology, Kerguelen 

 Island, CLXViii, 1879, p. 274, pi. 16, fig. 3. 

 St. 1563. OflF Marion Island, 46° 48-4' S, 37° 49-2' E, 101-106 m., 2 specimens. 

 St. 1564. Off Marion Island, 46° 36-5' S, 38° 02-3' E, 108-113 m., 2 specimens. 



In the absence of type material for comparison the identification of these small 

 specimens must be regarded as provisional. The largest measures R 10 mm., r 2-5 mm. 

 Since they were taken so near to the type locality of Pedicellaster hypernotius, they have 

 been examined with that species in mind. However, there are no straight pediceilariae 

 on the furrow margin and the proximal adambulacrals, as well as numerous others here 

 and there along the ray are triplacanthid. There is only one kind of crossed pedicellaria 

 (o-2 mm. long). The species is therefore not a Pedicellaster but an Anteliaster. 



In the largest specimen there is one series of actinal plates which extends half the length 

 of ray ; each plate with i small spinelet. The intermarginal papular areas are the largest. 

 One inframarginal series of small areas extends as far as the actinal plates ; dorsolateral 

 areas small. Dorsal plates and spinelets not in definite longiseries. The actinal surface 

 has the bristling appearance depicted by Smith's figure. 



Subfamily Labidiasterinae Verrill, emended 

 Labidiasterinae Verrill, 1914, p. 26. — Fisher, 1919, p. 492; 1928, p. 88. 



Rays numerous (9-50), long, slender; inferomarginal spines prominent, single, en- 

 veloped in a sheath carrying on the usually expanded distal surface a conspicuous 

 wreath of crossed pediceilariae ; abactinal skeleton either very open with large squarish 

 meshes or else abortive with scattered independent plates; crossed pediceilariae in 

 abactinal spinal wreaths or thick ruffs ; no actinal plates ; gonads two to each ray, opening 

 upon the side a short distance from base; tube-feet numerous, biserial to quadrisenal, 

 each with a single ampulla. 



