154 DISCOVERY REPORTS 



No madreporic body and no papulae could be found. 



The superomarginals carry about lo granules in 2 series aligned on long axis of plate. 

 On the lateral surface of the inferomarginals is a group of 5 or 6 similar granules while 

 the end carries a series of 3 much stouter spinelets, the median the longer. This spini- 

 ferous part of the plate is really the pedicel of a sort of coarse paxilla. Between succes- 

 sive tabula are the characteristic lateral furrows. 



A cleaned and dried specimen shows only 3 slender actinal plates to each ray, carrying 



1 or 2 small slender spinelets each. On account of the obliquely downward growth of 

 the inferomarginal pedicels and the convexity of disk, the concavity of actinal surface is 

 accentuated. 



Adambulacral spinelets slender, subterete, around 0-35 mm. long; proximally 3 or 4, 

 distally 2, rather heavily sheathed and connected by this sheath at base. They are usually 

 arranged in an oblique, transverse arc, the innermost spinelet farthest from mouth. Or 



2 may occupy the furrow margin, and 2 or i the surface of plate. At end of ray 

 only 2 spinelets stand in a transverse series. 



Mouth spinelets, 4 on furrow margin, subequal and similar to adambulacrals. 



In the paratype (R 6 mm.) the subspherical ovaries are attached to a superomarginal 

 plate and contain a few relatively large eggs. The entire ovary is only about o-6 mm. in 

 diameter so that the duct could not be traced in the tiny space available. It probably 

 opens ventrally. The large eggs suggest a "paedophoric" species. 



Type locality. St. 160. Near Shag Rocks, 177 m., grey mud, stones. 



Specimens examined. St. 160, 4 specimens, R 3-6 mm. 



St. 170. Off Cape Bowles, Clarence Island, 342 m., i specimen, R 5 mm. 



Family PORANIIDAE Perrier 



Genus Porania Gray 



Porania Gray, Ami. Mag. Nat. Hist., vi, 1840, p. 288. Type Porania gibbosa = Asterias pitlvillus 



O. F. MuUer. 

 Glabraster A. H. Clark, J. Wash. Acad. Sci., vi, no. 5, 1916, p. 122. Type G. magellanica 

 (Studer). 



Porania antarctica Smith 



Pora?iia antarctica Smith, Ann. Mag. Nat. Hist., ser. 4, xvii, 1876, p. 108.— P/iil. Trans., Zool. 



Kerguelen Island, etc., CLXVin, 1879, p. 275, pi. 17, fig. i.— Sladen, 1889, p. 360, pi. 59, fig. 3.— 



Perrier, 1891, p. 107.— Ludwig, 1905, p. 51, pi. 6, fig. 1.— Koehler, pars, 1923, p. 70 (Burdwood 



Bank). 

 Porania magellanica Studer, Monatsber. preiiss. Akad. Wiss. Berlin, July 1S76, p. 459.— Sladen, 



1889, p. 363, pi. 59, fig. 5. 

 Glabraster magellanica A. H. Clark, J. Wash. Acad. Sci., vi, no. 5, 1916, p. 122. 



St. WS 80. Falkland Islands, 50° 57' S, 63° 37' W, 152-156 m., fine dark sand, i specimen. 

 St. WS 84. 7i miles south-west of Sea Lion Island, East Falkland Island, 75-74 m., coarse sand, 

 shells, stone, 2 specimens. 



St. WS 85. Falkland Islands, 52° 09' S, 58° 14' W, 79 m., sand and shells, 4 specimens. 



St. WS 93. West Falkland Islands, 51° 51' S, 61° 30' W, 133-130 m., grey sand, i specimen. 



St. WS 245. Falkland Islands, 52° 36' S, 63° 40' W, 304-290 m., i specimen. 



