REPORT ON THE HYDROIDA. 
Iv 
Y. Sargassic. 
Limits — Northern, lat. 35’ N. 
Southern, lat. 0°. 
Eastern, long. 10' W. 
Western, long. 50' W. 
It includes the greater part of the 
Sargasso Sea, Madeira and the Canary- 
Islands, the Cape Verde Islands, Sierra 
Leone, and the adjacent coast of Africa. 
VI. South Atlantic. 
Limits — Northern, lat. 0°. 
Southern, lat. 50° S. 
Eastern, long. 10' E. 
Western, long. 60° W. 
It includes the eastern coast of South 
America, and the islands of Ascension and 
Tristan da Cunha. 
VII. .Cape of Good Hope. 
Limits — Northern, lat. 30 c S. 
Southern, lat. 50° S. 
Eastern, long. 40° E. 
Western, long. 10° E. 
It includes the Cape of Good Hope and 
Marion Island. 
VIII. Kerguelen. 
Limits — Northern, lat. 40° S. 
Southern, lat. 60° S. 
Eastern, long. 90° E. 
Western, long. 40° E. 
It includes Kerguelen Island and Heard 
Island. 
IX. Antarctic. 
Limits — Northern, lat. 60° S. 
Southern, lat. 67 ° S. 
Eastern, long. 100° E. 
Western, long. 70° E. 
No land is included in this Region. 
The most southern point attained by the 
track of the Challenger lies in it. 
X. Australian. 
Limits — Northern, lat. 20° S. 
Southern, lat. 60° S. 
Eastern, long. 170° W. 
Western, long. 90° E. 
It includes Southern Australia, New 
Zealand, Norfolk Island, Kemiadec Islands, 
Tongatabu, and New Caledonia. 
XI. East Indian. 
Limits — Northern, lat. 30° N. 
Southern, lat. 20° S. 
Eastern, long. 170° W. 
Western, long. 90° E. 
It includes the northern coast of 
Australia, the Philippine and other islands 
of the East Indian Archipelago, the Solomon 
Islands, Caroline Islands, New Hebrides, 
and Fiji. 
XII. Japanese. 
Limits — Northern, lat. 50° N. 
Southern, lat. 30° N. 
Eastern, long. 160° E. 
Western, long. 130° E. 
It includes Japan and the adjacent 
coast of Northern Asia. 
