1908.] NATURAL SCIENCES OF PHILADELPHIA. 333 



length of the prostomium and has a scarcely perceptible subterminal 

 enlargement. The lateral tentacles are very short, the short, conical 

 styles with their terminal filaments scarcely exceeding the ceratophores. 

 The extended palpi taper regularly to the end, are slender and 7-8 times 

 the prostomial length. Anterior elytra are circular, the others broadly 

 elliptical, with weak attachment laterad of the center. Their texture 

 is soft and flexible, the surface smooth and punctate and entirely 

 lacking cilia or papillae of any sort, but with the margin slightly thick- 

 ened anrl upturned. The inner half is brown, the outer wliite in agree- 

 ment with the color of the body. Dorsal cirri are rather stout with 

 prominent cirrophores and the styles reach beyond the tips of the 

 parapodia. They taper regularly to a subterminal enlargement, beyond 

 which is a short filament. Posterior cirri are longer and more slender 

 and the anal cirri are stouter and very long, equalling the last 9 somites. 

 Usually but one anal cirrus is fully developed. A broad rich brown 

 stripe marks the dorsum, being more or less broken in the middle of the 

 body and spreading over the entire back posteriorly where a median 

 white line sometimes divides it. Dorsal cephalic appendages and 

 dorsal cirri chiefly brown with subterminal and terminal white rings 

 All other parts, including entire venter, white. 



Stations 4193, Halibut Bank, Gulf of Georgia, B. C, 18-23 fathoms, 

 green mud and fine sand; 4197, same region, 31-90 fathoms, sticky 

 green mud and fuie sand; 4199, Queen Charlotte Sound, off Fort 

 Rupert, Vancouver Island, B. C, 68-107 fathoms, sticky green mud 

 and volcanic sand ; 4208, Admiralty Inlet, vicinity of Port Townsend, 

 Washington, 83-99 fathoms, rocky; 4216, same region, 79-101 fathoms, 

 rocky ; 4227, \'icinity of Naha Bay, Behm Canal, Alaska, 62-65 fathoms, 

 dark green mud and fine sand. 



Eunoe depresaa Moore. 



Eunoe depressa Moore, Proc. Acad. Nat. Sci. Pliila., 1905, pp. 536-538, Pis. 

 XXXIV, figs. 17, 18; XXXV, figs. 19, 20. 



Besides a fragment labelled Union Bay, B. C, 6-22-'03, this species 

 is represented by specimens from Stations 4261 (type), Dundas Bay, 

 Icy Strait, 8^10 fathoms, green mud and rocks; 4270, Afognak Bay, 

 Afognak Island, Alaska, 14-1 9 fathoms, hard gray sand and rock. The 

 latter is labelled ''Hermit crab, messmate," and many of the papillae 

 on the elytra bear 2 or 3 spines. 



I also refer provisionally to this species under the name of var. 

 mammillata a specimen which may represent a distinct but related 

 species. It measures 20 mm. long and has a form similar to but some- 

 what less broad and depressed than typical depressa. The palpi are 

 22 



