SMITHSONIAN INSTITUTION 
UNITED STATES NATIONAL MUSEUM 
Bulletin 100 
VOLUME 14, PART 3 
CONTRIBUTIONS TO THE BIOLOGY OF THE 
PHILIPPINE ARCHIPELAGO AND 
ADJACENT REGIONS 
REPORT ON THE: ECHINOIDEA COLLECTED BY THE 
UNITED STATES FISHERIES STEAMER “ALBATROSS” DUR- 
ING THE PHILIPPINE EXPEDITION, 1907-1910. PART 3: THE 
ECHINONEIDAE, ECHINOLAMPADIDAE, CLYPEASTRIDAE, 
ARACHNOIDIDAE, LAGANIDAE, FIBULARIIDAE, URECHINI- 
DAE, ECHINOCORYTHIDAE, PALAEOSTOMATIDAE, 
MICRASTERIDAE, PALAEOPNEUSTIDAE, HEMI- 
ASTERIDAE, AND SPATANGIDAE 
By 
THEODOR MORTENSEN 
UNITED STATES 
GOVERNMENT PRINTING OFFICE 
WASHINGTON : 1948 
For sale by the Superintendent of Documents, U. S. Government Printing Office, Washington 25, D, C, 
Price 30 cents 
