730 
THE VOYAGE OF H.M.S. CHALLENGER. 
RANGE IN 
NATURE OF THE SEA- 
7 D 5 
LocaLities Egae tata Borrom. 
PHANEROZONTA. 
PORCELLANASTERIDE, 
PORCELLANASTERINZ. 
Hyphalaster, Sladen. 
HI, parfaiti, Perrier . Gulf of Gascony. 2610 Cd © i eassee 
*H. planus, Sladen 038500 04S. 108 3540" EP 1950 Diatom ooze. 
Thoracaster, Sladen. 
* Pep Between the Canary and Cape |}. oe des 
T. cylindratus, Sladen Vide telende j 2400 Globigerina ooze. 
Pseudaster, Perrier. 
P. cordifer, Perrier N. of Azores, DONG WM BM eee 
Subfamily Crenoprscixa, Sladen. 
Ctenodiscus, Miiller and Troschel. 
*C. australis, Liitken . E. of South America. 55-600 Sand ; Green sand. 
C. corniculatus (Linck), Perrier 
*C. procurator, Sladen 
Family Asrropecrinipz, Gray, 
emend, 
Subfamily ASTROPECTININE, 
Sladen, 
Craspidaster, Sladen. 
*C. hesperus, Miiller and Troschel, { 
sp. C 
Scandinavianand N, American 
coasts ; Greenland; Spitz- 
bergen and Nova Zembla; 
Kara Sea. 
W. of South America. 
China; Japan; Philippine 
Islands; Banka Straits ; 
Singapore. 
40-1325 
10-20 
Mud and soft clay, 
hard occasionally. 
Blue mud. 
Mud. 
(3) 
(4) 
@) 
(8) 
