JOHNSON: POLYCHAETA OF PUGET SOUND REGION. 383 
Iii the summers of ’97, ’98, and ’99 Miss Robertson collected in 
the vicinity of Seattle, a region much further up the Sound than 
that investigated by the Columbia University Expedition. About 
Seattle the shores are generally beaches of muddy sand, but some¬ 
times clean sand, as is the case between Duwanish Head and Alki 
Point. Alki Point itself is rocky, and in 1898 numerous Annelids 
were found between and under the stones. Under the bluff on the 
north shore of Port Orchard Channel (stretching westward from the 
Sound) extends Pleasant Beach, composed of muddy sand. Numer¬ 
ous burrowing forms are from this locality. On this beach Professor 
Ritter collected several species of Polychaeta in 1899. 
Following is a list of the species represented in the various 
collections, which shows, so far as known, the local and the 
geographical distribution of each species. For convenience’ sake, 
the two districts explored by the Columbia University Expedition are 
designated “ Port Townsend Region ” (including Sequim Bay, Dis¬ 
covery Bay, Scow Bay, and Hood’s Canal), and “ Neah Bay ” (at the 
entrance of Straits of Juan de Fuca) ; while that portion of Puget 
Sound investigated by Miss Robertson and Professor Ritter is indi¬ 
cated as “Seattle Region” and comprises not only the immediate 
vicinity of Seattle but also Port Orchard Channel and its shores — 
Orchard Point, Mud Bay, “Port Orchard,” Pleasant Beach, and 
Channel Rocks. A + indicates occurrence of a species in any given 
region. 
Two species (Northia iridescens sp. now and Sternaspis fossor 
(?) Stimpson) were dredged by Prof. W. A. Herdman at Victoria, 
Vancouver Island, B. C. 
