278 



THE SPONGES OF THE WEST-CENTRAL PACIFIC 



Sponges were also found to be at least moderately common throughour 

 the whole large lagoon area about the Palaus. I watched many kilometers of 

 lagoon floor, using the viewing box or water glass, while our boat was being 

 slowly rowed or propelled by outboard motor. Every few meters, there was a 

 sponge or group of sponges. Near mangroves, the abundance was especially 

 noticeable. Spongia zimocca, the Phyllospongias, Neopetrosia pandora, Cal- 



f34" 20 



1 3 4° 40' 



Text Figure No. 189. Map number 4. Palau Islands. The scale reads in kilometers. Stars 

 mark areas where sponges were most studied. 



