350 THE ANNELIDA POLYCHAETA. 



sockets moderately enlarged, intermediate in type, though in some asymmetry 

 may be considerable. In these the blade is long and slenderly acuminate, with 

 the tip long and fine, and bears along one side a series of long fine scales or teeth, 

 which are usually closely arranged but in some appear farther apart. (Plate 

 63, fig. 3). A few sunple setae occur in some of the fascicles but could not be 

 detected in others. They are long, with finely acute tips, and are obscurely 

 minutely roughened. 



The proboscis is wholly retracted. 



Locality. Gulf of California: Sta. 3437 (lat. 27° 39' 40" N., long. 111° 0' 

 30" W.). Depth 628 fms. Bottom of brown mud with black specks. Bottom 

 temp. 40° F. 23 April, 1891. One specimen. 



Among other features characterized by the abortive notocirri and the two 

 long, subcylindrical, presetal ligulae of the parapodia. 



Glycera Savigny. 



Descript. Egypte. Hist, nat., 1809 [ = 1822], 1, pt. 3, p. 12, 36. 

 Rhynchoholua CLAPARfeDE, Annolides Ch^top. Golfe Naples, 1868, p. 182. 

 Euglycera Verrill, Trans. Conn. acad. sci., 1882, 4, p. 287. 



Glycera Akwidsson, Bergens mus. aarbog, 1908, no. 11, p. 5; McIntosh, British annelids, 1910, 2, pt. 2, 

 p. 477. 



Glycera dibranchiata Ehlers. 



Borstenwiimier, 1868, p. 670, pi. 24, fig. 1, 3-8, 10-28. 



Rhynchobolus dibranchiatus Verrill, Invert. Vineyard Sound, 1873, p. 596, pi. 10, f. 45, 46; Amer. 



journ. sci., 1874, ser. 3, 7, p. 132; Proc. Amer. assoc. adv. sci., 1874, p. 370, 373; Webster, Rept. 



N. Y. state mus., 1879, 32, p. 17. 

 Euglycera dibranchiata, Verrill, Trans. Conn. acad. sci., 1882, 4, p. 287; Webster & Benedict, Rept. 



U. S. Comm. fish., 1885, p. 726. 



Locality. Atlantic Coast: Between Cape Hatteras and Nantucket. 

 Sta. 2305 (lat. 35° 23' N., long. 74° 51' 30" W.). Depth 58 fms. Bottom of fine 

 grey and black sand. 21 October, 1884. One complete specimen. 



Glycera profundi, sp. nov.i 



Plate 64, fig. 2-6. 



Color of the preserved type brown, in part of shght reddish cast, the venter 

 with a pale median longitudinal stripe; the parapodia yellow; prostomium 

 yellow at tip. 



'profundum, depth. 



