382 PROCEEDINGS : BOSTON SOCIETY NATURAL HISTORY. 
Although comparison has been carefully made with the descrip¬ 
tions of Japanese Polychaeta given by Grube (’77) and by von 
Marenzeller (’79 and ’84), no species, with the sole exception of 
the widely ranging Hcirmothoe imbricata , has been found to 
inhabit both sides of the Pacific. This is not surprising when we 
consider that nearly all of the sixty-two species of Grube’s and 
Marenzeller’s lists are from the southern portions of Japan, and 
therefore belong to the Indo-Pacific fauna, not to the circumboreal. 
But, on the other hand, comparison of Puget Sound Annelids with 
those of Bering Sea (Wiren, ’83; Marenzeller, ’90) also shows 
absolute dissimilarity. So far as known, the Polychaeta of the 
more northern parts of Bering Sea — the only ones of that region 
dealt with by Wiren and von Marenzeller—are practically those of 
the Arctic and North Atlantic (i. e., are circumboreal) with very little 
admixture of forms peculiar to the North Pacific. In Wiren’s list 
of twenty-nine species there is not one which can be regarded as 
belonging distinctively to the North Pacific. Von Marenzeller’s 
list of twenty-four (exclusive of eight previously given by Wiren) 
affords only two new species; the others are well-known inhabi¬ 
tants of the shores of Scandinavia, Iceland, Greenland, or north¬ 
eastern America. The data as yet available are wholly insuffi¬ 
cient to justify even a rough estimate of what proportion of the 
Puget Sound Annelids range far to the northward and eastward 
along the Aleutian chain. From such a category should of course 
be excluded purely circumboreal and North-Atlantic species ( e . g., 
Pohjnoe (Lepidonotus) squamata, Ilarmotlioe imbricata, JVereis 
virens), as these are no more characteristic of the Pacific than of 
the Atlantic. When the extensive series of Polvchaeta collected 
by Professor Ritter and Dr. Coe during the Harriman Alaskan 
Expedition of 1899 shall have been worked up it will doubtless be 
found to contain many species which range southward to Puget 
Sound and beyond. 
Descriptions of localities where collecting was done by the 
Columbia Expedition have already been given in the general reports 
by members of the Expedition (’97, ’97a) ; and the topography of 
the region, with indication of collecting stations, is shown in a map 
published with the first of these reports. In many instances the 
authors mention the occurrence of Annelids; but it is not always 
possible to determine accurately what species is meant. Moreover, 
several species are mentioned — by generic name at least — that 
are not represented in the collections. 
