REPORT ON THE ASTEROIDEA. 123 
determination seems doubtful; it is probably Archaster typicus.’ 
The species, however, is stated by M. Perrier” to occur in the Philip- 
pine Islands. 
Archaster typicus is found among the islands of the Eastern 
Archipelago, from the Philippine and Pelew Islands in the north, to 
New Guinea, the north coast of Australia and New Caledonia; and 
extends eastward to the Fiji and Tonga Islands. In the west it is 
found in the neighbourhood of the Nicobar Islands, In the Berlin 
Museum there are specimens reputed to be from Japan ;* but I am 
not aware of authenticated examples from this locality. 
8. Bathymetrical range: Shallow water to 250 fathoms. 
Greatest range of one species: Archaster typicus, shallow water to 250 
fathoms. 
y. Nature of the Sea-bottom: Archaster typicus occurs in shallow water on the coral 
reefs at the Fiji and Philippine Islands, and on Green mud in 250 fathoms off the 
Philippine Islands. Information as to the nature of the habitat of Archaster 
angulatus is wanting. All the specimens that I am acquainted with are from 
shallow water. 
Chorological Synopsis of the Species. 
| Ocean. Range in Fathoms. Nature of the Sea-bottom. 
Archaster angulatus . ‘ _ | Indian Ocean. Shallow water sets 
Archaster typicus . : 5 S. Pacific. { Shallow water to | { Coral reefs. 
| 250 fathoms. | | Green mud (250 fathoms). 
1. Archaster typicus, Miiller and Troschel. 
Archaster typicus, Miiller and Troschel, 1840 (April), Monatsber. d. k. Akad. d. Wiss. Berlin, p. 
104; System der Asteriden, p. 65. 
Astropecten stellaris, Gray, 1840 (November), Ann. and Mag. Nat. Hist., vol. vi. p. 181. 
Archaster nicobaricus, Mobius (n. sp., Behn, M.S.), 1859, Neue Seesterne des Hamburger und Kieler 
Museums, p. 13 (Abhandl. a. d. Gebiete Naturw. hrsg, v. d. naturwiss. Verein, Hamburg, Bd. iv., 
Abth. 2, 1860). 
Localities. —Samboangan, Philippine Islands. Depth 10 fathoms. 
On the reefs at Zebu, Philippine Islands. 
1 Dr, v. Martens remarks that this example seems scarcely distinguishable from Archaster typicus. (Ueb. 
ostasiatische Echinodermen, Archiv f. Natury., Jahrg. xxxii., Bd. i. p. 87.) 
2 Nouv. Archives Mus. Hist. Nat., 2e Série, 1884, t. vi. pp. 57, 88. 
3 These specimens are mentioned by von Martens, who also states: ‘ Mir ist er in Japan nicht vorge- 
kommen,” (Archiv 7. Naturg., Jahrg. xxxi., Bd. i. p. 353). 
