410 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Prostomium conical, tapering, 2-3 mm. long, length exceeding 
its breadth, obscurely twelve-ringed ; four minute tentacles at tip. 
Basal portion not sharply set off from the peristomium. Palpi (?) 
retracted. 
Pygiclium small, globose, bearing a pair of slender subulate anal 
cirri. Anus minute, on dorsal side of pygidium. 
Parapodia (Fig. 101) stout, of nearly equal height and length, 
the largest equal to width of dorsum in its widest part; except the 
two most anterior pairs, four-lobed, the two anterior lobes slightly 
longer than the posterior, but all lobes of nearly same form 
except in most anterior parapodia. Anterior dorsal lobe sometimes 
bifid. All the lobes more or less conical and pointed; their tips 
darkly pigmented; simple capillary setae inserted between the dor¬ 
sal lobes; the compound setae between the ventral. Ventral cirrus 
(v. c.) large, conical, strongly resembling the lobes; dorsal cirrus 
(d. c.) smaller, globose, much constricted at the point of attachment, 
placed high, at the base of the parapod. 
Branchiae (Fig. 101) begin at the 16th or 17th parapod and ex¬ 
tend to the 22d from the pygidium; they consist of eight or nine 
finger-like, thin-walled lobes, sometimes bifurcated ; completely re- 
tractible into body-wall; at sexual maturity crowded with reproduc¬ 
tive cells (Fig. 101). All branchiae are on p>osterior aspect of the 
parapodium ; the most anterior and most posterior of the series are 
single, sausage-shaped processes. 
Proboscis extremely variable in length (12 to 35 mm. or more), 
club-shaped, thicker than anterior portion of body, beset with mi¬ 
nute papillae of two forms, conical and ovate. Jaws (Fig. 102) 
strongly hooked; each bears a triangular appendage (ap.) with 
long falcate process. 
Color of alcoholic and formalin specimens variable, from tawny 
or buff to olive-brown. The color is due to abundant vellowish 
brown pigment grains in the hypodermis. These are often ag¬ 
gregated towards tips of the lobes of the parapodia. 
Length of large specimen (much contracted) ,170 mm.; transverse 
diameter, including parapodia, 9 mm. 
This species is probably abundant in the Puget Sound region, 
as it occurs in all the collections. It has been taken at Neali Bay, 
and at Salmon Bay (near Seattle) ; and there are a considerable 
number in the Columbia collection (probably from the vicinity of 
Port Townsend) for which no locality is given. A Glycerid col- 
