asterisk. 
“ 
REPORT ON THE ASTEROIDEA. ° 345 
passing also into the Pacific. Pentaceros belli, Pentaceros sladena, 
and Pentaceros grayi, from Mauritius, the last named also from 
Zanzibar, and extending into the Hastern Archipelago. Pentaceros 
verrucosus, the type of which was simply recorded as from “ Indien,” 
seems to me to embrace Pentaceros nodosus, Gray (non Linné); and if 
this view be correct, it would include also Pentaceros clouei and 
Pentaceros gray.  Pentaceros affinis, Pentaceros requlus, and 
Pentaceros westermanni, from India, the last two off the west coast, 
but the exact locality of the first is unknown. Pentaceros reinhardti, 
from the Nicobar Islands. Pentaceros granulosus, Pentaceros nodu- 
losus, and Pentaceros reticulatus, from the west coast of Australia, 
the last named extending into the Atlantic (West Indies and Brazil). 
Pentaceros granulosus appears to me a doubtful member of the genus. 
EasteRN ARCHIPELAGO: Eleven species between the parallels of 20° N. and 20° 8. 
PACIFIC : 
Pentaceros hedemanm, *Pentaceros productus, Pentaceros de- 
cipiens, Pentaceros liitkeni, Pentaceros troscheli, Pentaceros miillerc, 
and Pentaceros grayi, from Billiton, the last named extending into 
the Indian Ocean to Zanzibar. Pentaceros superbus, from Sumatra. 
Pentaceros muricatus, from Timor, Larentuka, and Amboina, and ex- 
tending into the Indian Ocean. *Pentaceros twrritus, from Am- 
boina, Ceram, Banda, and New Guinea, and extending into the Pacific 
and Indian Oceans. *Pentaceros callimorphus, from Torres Strait. 
Nine or ten species between the parallels of 30° N. and 40° 8. 
Pentaceros alveolatus, Pentaceros caledonicus, and Pentaceros tur- 
ritus, from New Caledonia, the last named extending into the Eastern 
Archipelago and Indian Ocean.  Pentaceros chinensis and Pen- 
taceros orientalis, from China. Pentaceros australis, Pentaceros val- 
vulatus and Pentaceros gracilis, from Australia, the last from the east 
coast. Pentaceros cumingi and Pentaceros occidentalis, off the west 
coast of America, the former from Guayaquil, the latter from Central 
and Northern America. I believe, however, that the two names are 
synonymous, and that Pentaceros occidentalis should consequently be 
disused. 
8. Bathymetrical range: Shallow water ; all confined to the Littoral zone. 
y. Nature of the Sea-bottom: Recorded in very few instances, probably varying con- 
siderably, but Sand or Mud in most cases. 
The species collected by the Challenger are indicated in the foregoing list by an 
(ZOOL. CHALL, EXP.—PART LI,—1888. ) {4 
