126 BULLETIN OF THE BUREAU OF FISHERIES. 
Polycirrus eximeus).¢.4 35-2. Cape Cod to Beaufort, N. C 
Ampharetesatosat aseeqae teense New Haven to east of Falmouth. 
Melinna maculata...............Woods Hole to Virginia. 
Gistenides souldiite ae ee oes Casco Bay to North Carolina. 
Clymenella eae ...........Eastport, Me., to Porto Rico. 
Maldane elongata. . .........Massachusetts to North Carolima. 
Trophonia affinis. . ..........Massachusetts Bay to southern New Jersey. 
Parasabella microphthalmia.. .. Massachusetts Bay to Beaufort, N. C. 
Hydroides dianthus. . .....Casco Bay (in sheltered places) and Massachusetts Bay to Charleston, 
S.C; 
Spirorbis tubeformis........... Vineyard Sound to New Haven. 
Sabellaria vulgaris. .............Provincetown to Beaufort, N. C. 
Having a range of approximately equul extent north and south. 
Lumbrineris hebes .............Casco Bay to New Jersey. 
Pseudopotamilla oculifera...... Bay of Fundy to Virginia. 
Of doubtful position. 
Pista intermedia.............-.Cape Cod to Block Island. 
It will thus be seen that a large majority of the more prevalent benthic species of 
Annulata found in this vicinity are predominantly southern in their range, while of the 
few species whose range is predominantly northern all but two have a range which 
extends far to the southward of Woods Hole. 
SIPUNCULIDA. 
So far as known, this group of worms has a scant representation in our local fauna. 
Only three determined species are included in our list, of which only one (Phascolion 
strombt) was encountered with any frequency in the dredge. This was mainly recorded 
from the inshore stations of Buzzards Bay, though taken elsewhere on a number 
of occasions (chart 83). On account of its peculiar mode of life it was probably fre- 
quently overlooked during the earlier days of our dredging. This worm, according to 
Gerould, is “found all along the eastern coast of North America from off Virginia 
northward to Labrador.’ Since it occurs in such widely different latitudes as the West 
Indies and the northern coast of Asia, the distribution of this species can have little 
relation to temperature. 
Another of our local sipunculids (Phascolosoma verrillia Gerould) has been taken 
on a very few occasions only. It was apparently observed by Verrill, though not 
described by him. 
8. ARTHROPODA. 
With a few exceptions the phylum Arthropoda is represented in our marine fauna 
by the class Crustacea alone, the members of which occupy somewhat the same position 
in the life of the sea as do the insects upon land. The total number of Crustacea thus far 
listed for this region is about 300, which is a larger number than is recorded for any 
other class of animals or even for any entire phylum besides the Arthropoda. There 
are comprised in our catalogue 289 definitely determined species of Crustacea, together 
with 3 which are undetermined and 18 which have been determined with doubt. Of 
these, 126(+6?) are to be assigned to the subelass Entomostraca and 163(+ 15?) to the 
subclass Malacostraca. Since the former subclass comprises for the most part small 
