Polychaeta 13 B 
HESIONIDAE. 
Psammate aphroditoides (Fabricius). 
1780. Nereis aphroditoides Fapricius, Fauna Groenl., p. 296. 
1867. Castalia Fabricii Matmeren, Annul. Polychaet., p. 32. 
——. Castalia arctica MauMerREN, ibid., p. 32. 
1908. Non Castalia arctica McInvosu, British Annelids, 2, pt. I, p. 125. 
One entire and two incomplete specimens from Bernard harbour are refer- 
able to this species, as are also several from Port Clarence, Alaska. The 
Bernard harbour specimens are the larger, the complete one having a length 
of 17 mm., and are darker in colour. The Port Clarence specimens measure 
under 10 mm. in length. They are pale fulvous, in part of a weakly greenish 
cast; but no red lines, such as mentioned by Fabricius as frequently present, 
are detectable. 
In the character of the parapodia these specimens conform to Fabricius’ 
original description, though differing obviously from the form taken on the 
west coast of Ireland at a depth of 90-125 fathoms, and described and figured 
by McIntosh under the name Castalia arctica Malmgren... The parapodium in 
general form much more resembles that of P. punctata (O. F. Miller), excepting 
for the presence of notopodial setz in the latter. It terminates similarly in 
three conspicuous papille as mentioned by Fabricius. McIntosh’s figure shows 
the parapodium of his specimen to be strongly conical, relatively very deep at 
base, instead of having the longer, more nearly cylindrical form of the true 
arctica or aphroditoides, and to present but a single papilla at the end. The 
head of the British form is represented as anteriorly much more convex than 
in the specimens of aphroditoides secured by the Canadian Arctic Expedition. 
The British form seems not to be the same species, and may be tentatively 
designated as P. britannica, n. sp. ; 
P. aphroditoides has been previously recorded from Greenland, Siberia, and 
Bering strait. 
Locauity.—Alaska: Grantley harbour. Station 20 6, c. Depth, 2-3 
fathoms. Bottom, sandy mud with alge. July 30, 1913. 
Alaska: Port Clarence. Station 20g. Depth, 2-3 fathoms. Bottom, gray 
mud with brown and red alge. August 16, 1913. 
Northwest Territories: Bernard harbour. Station 37e. Depth, 2 fathoms. 
September, 1, 1914. 
SPHAERODORIDAE. 
Ephesiella minuta (Webster and Benedict). 
1887. Ephesia minuta WexBstER and Brenepict, Rept. U.S. Comm. Fish. for 
1885, p. 728, pl. 4, f. 64-66. « 
Locatity.—Alaska: off Collinson point. Station 27s. October 3, 1913. 
Depth, 3 fathoms. Bottom, mud and gravel with alge. 
Two specimens from this locality seem not to differ from minuta, which 
was previously known from the coasts of Maine and Spitzbergen. Each is nearly 
5 mm. in length. No seta with appendage in place was found, the specimens 
having been considerably rubbed. The capsules and papille of the general 
surface appear to be typical and the parapodia have the characteristic form 
and papillation. 
1British Annelids, 1908, 2, pt. 1, p. 125, pl. 58, f. 14, pl. 69, f. 15, pl. 78, f. 3-3a, 
