38G PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
The entire absence of Phyllodocidae and Opheliidae from a col¬ 
lection of this size and representative character is remarkable. The 
Eunicidae and Chaetopteridae are represented, the former by several 
headless fragments of some large species, and the latter by numerous 
long, annulated, empty tubes. 
For any zoologist devoted to the study of living animals, the 
examination and description of a collection of preserved specimens, 
gathered by others in a region he has never visited, is likely to 
prove an irksome and unprofitable task. In the present instance, 
however, the task has been enlivened by the discovery of several 
very interesting forms. First and foremost should be mentioned 
Trypanosyllis gemmipara, a Syllidian with alternation of genera¬ 
tions in which the sexual zooids, instead of forming a linear series, 
arise by collateral budding near the posterior extremity. Harmo- 
thoe tuta , with its great number of asymmetrical somites, also 
deserves notice ; and as regards zoogeography, the discovery of a 
Pacific species of Magelona , the finding of a genuine Hemipodia in 
the Northern Hemisphere, and the confirmation of Gamble and 
Ashworth’s ( : 00) statement regarding the occurrence of Arenicola 
daparedei on the west coast of America, are worthy of note. 
I gladly avail myself of this opportunity to express my sincere and 
hearty thanks to Prof. C. O. Whitman, who generously placed at 
my disposal an investigator’s room at the Marine Biological Labora¬ 
tory during the latter part of the summer of 1900 ; to Prof. E. L. 
Mark, of Harvard, to whom I am indebted for laboratory privileges 
at the Museum of Comparative Zoology; and to Dr. Wm. M. 
Woodworth for permission to make use of the Polychaete collec¬ 
tions of the same institution. 
POLYNOIDAE. 
1. Polynoe squamata (L.) Aud. and M.-Edwards. 
Lepidonotus squamatus Leach. Zoological miscellany, London, 
1816. 
This well-known circumboreal species is represented by three 
specimens, probably from the vicinity of Port Townsend. 
P. squamata occurs on the California coast as far south as Santa 
Monica, where a specimen was obtained for me by Mr. J. J. Rivers, 
the well-known entomologist. At Pacific Grove it is frequent in 
