*REPORT ON THE ASTEROIDEA. 595 
and extending into the Southern Oceau in the neighbourhood of 
Kerguelen and Heard Islands. 
Paciric : One species between the parallels of 45° and 55° S. 
Labidiaster radiosus, from the Trinidad Channel, west coast of 
Patagonia, and extending through the Strait of Magellan to the east 
coast of Patagonia and Rio de la Plata (fide Kinberg). 
8. Bathymetrical range: 30 to 800 fathoms. 
Greatest range of one species: Labidiaster annulatus, 75 to 800 fathoms. 
y. Nature of the Sea-bottom: Labidiaster radiosus on sand; Labidiaster annulatus 
on Volcanic mud, Green mud, and coarse gravel. 
Chorological Synopsis of the Species. 
Ocean. Range in Fathoms. Nature of the Sea-bottom. 
{ Southern Ocean and | 75 to 800 Volcanic mud, Green mud, 
J | 
bidiaster annulatus . : 
Labidiaster annulate Eastern Archipelago. coarse gravel. 
Labidiaster radiosus . 5 Atlantic and Pacific, | 30 to 63 Sand. 
1. Labidiaster radiosus (Lovén), Liitken (Pl. CVIII. fig. 2), 
Labidiaster radiosus (Lovén, M.S.), Liitken, 1871, Videnskab. Medd. naturh. Foren. i Kjgbenhayn, 
p- 293 
Locality.x—Station 313. Near the Atlantic entrance to the Strait of Magellan. 
January 20, 1876. Lat. 52° 20’ 0” S., long. 67° 390” W. Depth 55 fathoms. Sand. 
Bottom temperature 47°°8 Fahr. ; surface temperature 48°°2 Fahr. 
Remarks.—In addition to the excellent description given by Liitken, this species has 
recently been exhaustively described by Studer,’ who also made a careful examination of 
its anatomical structure, and illustrated a number of the more important details. I have 
therefore limited myself to a single figure of Labidiaster radiosus, which I have given for 
the purpose of comparison with the new species. 
2. Labidiaster annulatus, n. sp. (Pl. CVIIL fig. 1). 
Rays forty to forty-five. R=165 to 190 mm.; r=33mm. R>5~r. Breadth of a 
ray at about 20 mm. from the disk, 6 to 7 mm. 
Rays elongate, delicate, and cylindrical; constricted at the base, where they are closely 
crushed together, then gradually swelling slightly, the ray being broadest at about the 
1 Anhang z. d. Abhandl. d. k. preuss. Akad. d. Wiss. Berlin, vom Jahre 1884, p. 14, Taf. ii, iii 
