LEODICIDAE FROM FIJI AND SAMOA. 



By a. L. Treadwell. 



INTRODUCTION. 



The annelids here described were collected by the writer in Fiji 

 and Samoa in April, May, and June of 1920, on an expedition con- 

 ducted by the Department of Marine Biology of the Carnegie Institu- 

 tion of Washington, Dr. A. G. Mayor, Director. Owing to our short 

 stay in Fiji, collecting there was limited to the immediate vicinity of 

 Suva and was mainly done on the reefs on either side of the main 

 entrance to the harbor and on the mud flats near the city front. 



WEST CA'PE 



,Pt. Iv\ArATut A 



.■(^ AUNUU 



TRlNCiNC T<eEF 



'^SAIL ROCK 

 'STEPS Pt. 



Map of Tutuila, American Samoa. 



In Samoa, a very thorough survey was made of the harbor of Pago 

 Pago in Tutuila, so that so far as the Leodicidae are concerned this 

 work can claim to be exhaustive for that locality. Only a few 

 annelids from other families were collected and none equaled the 

 Leodicidae in number of species or abundance. The Leodicidae occur 

 especially in the reef rocks and are not represented in the mud of the 

 upper harbor. Apparently this is due to the large quantities of 

 fresh water which flow into the upper end of the harbor, making 

 a brackish-water condition in which only a few Terebellids and 

 Capitellidids can live. I found a similar condition at Fagaalu and 



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