REPORT ON THE ASTEROIDEA. 247 
the west and extending to Java in the Eastern Archipelago, and 
thence to the Pacific northward to Japan. Lwidia hardwickii is 
reputed to be from the Indian Ocean, but the exact locality is 
unknown. 
EasTERN ARCHIPELAGO: Five species between the parallels of 20° N. and 10° S. 
* Luidia longispina and * Ludia aspera, off the Philippine Islands, 
the latter extending to the north of New Guinea, *Lwidia forficifer, 
in the Arafura Sea. Lidia maculata, off Java, and extending 
into the Indian and Pacific Oceans, Lwidia chefuensis, off Singapore. 
Paciric: Hight species between the parallels of 40° N. and 20° S. 
On the western side: *Zwdia limbata, Inidia quinaria, and 
Inidia maculata, off the coast of Japan, the last mentioned extending 
into the Eastern Archipelago and Indian Ocean. 
On the eastern side: Lwidia californica and Imidia foliata,’ off 
the coast of California. Lwidia brevispina and Luidia columbiz, off 
the coast of Mexico, the former extending to the Sandwich Islands 
and the latter to Panama. Lwidia bellonx, extending from Panama 
to Peru as far south as Callao. 
The species collected by the Challenger Expedition are indicated in the above list by 
an asterisk. 
6. Bathymetrical range: Shallow water to 374 fathoms. 
All the species are found in the Littoral zone, and four only pass into the 
Continental zone, viz.: Lwidia sarsit, Luwidia elegans, Luidia convexiuscula, 
and Luidia barbadensis. None occur in the Abyssal zone. 
Greatest range of one species: Luidia sarsi, shallow water to 374 
fathoms. 
y. Nature of the Sea-bottom: Generally sandy, or sandy mud; but unfortunately the 
definite character of the bottom inhabited by Zwidia is recorded in very few 
eases. Of the forms collected by the Challenger, Zwidia aspera and Inidia 
Jorficyfer were both found on Green mud and Coral mud; and Luidia longi- 
spina on mud. 
Inidia elegans and Lidia barbadensis are recorded as frequenting 
calcareous pebbles, the latter being also found on fine mud. Lwidia con- 
veaiuscula is found on Voleanic sand, madrepore sand and broken shells, 
as well as on a hard bottom. Lwidia sarsii is found on sand and coarse 
shell-sand. 
‘I am in great doubt as to whether this form can really be distinguished from Lwidia brevispina. 
