1911.] NATURAL SCIENCES OF PHILADELPHIA. 301 



All of the specimens are stout and more or less inflated anteriorly 

 in the proboscidial region and taper rather abruptly into the slender 

 and attenuated posterior half. All segments are biannulate. Several 

 have the proboscis fully protruded, showing the very dense covering 

 of very high slender j^apillse, among which are a few somewhat stouter 

 but otherwise similar papilla?. The jaw appendages differ from those 

 of G. nana in having a much narrower basal wing. 



The color is generally a rich orange-bro\TO, most pronounced ante- 

 riorly, and only lacking on the smallest specimens, which are clear 

 yellow. 



This species has already been recorded from the North Pacific in 

 the Gulf of Georgia and off Japan. 



Stations 4,326, off Soledad Hill, Point La Jolla, vicinity of San 

 Diego, 243-264 fathoms, soft green mud; 4,399, Lat. 32° 44' 50" N., 

 Long. 117° 48' 45" W., 264-285 fathoms, fine gi-ay sand and rock; 

 4,410, off Santa Catalina Island, 143-245 fathoms, gray sand, 

 shells, gravel and rocks; 4,415, off Santa Barbara Island, 302-638 

 fathoms, gi-een mud; 4,418, same locality, 238-310 fathoms, dark 

 green mud, sand and rock; 4,430, off Santa Cruz Island, 197-281 

 fathoms, black sand, pebbles and rock; 4,431, off Santa Rosa Island, 

 38-45 fathoms, varied bottom; 4,463, off Point Pinos Lighthouse, 

 Monterey Bay, 48-111 fathoms, rocky. 

 Glycera alba Rathke macrobrancliia subsp. nov. 



Ghjcera alba Rathke, Nov. Act. Acad. Nat. Cur., XX, p. 173, Tab. IX, fig. 9. 



Represented by a single long, slender, nearly complete specimen. 

 Length 99 mm., width 2.7 mm. Number of segments 129, probabh' 

 25 or 30 at the caudal end missing. 



The segments are all strongly biannulate, with the middle or foot- 

 bearing annulus somewhat larger. Para])odia small, in middle region 

 about one-third as long as the body width. The dorsal gills begin 

 at XXII and reach a ver}^ large size before L, remaining nearly unal- 

 tered to the end of the piece. Compared with European and Jajjanesr 

 examples of the species, the gills of this specimen are much larger and 

 the postsetal lobe smaller. 



The jaws are unknown, but the half-protruded proboscis was studied. 

 Its surface is very finely granular from the presence of very numerous 

 small, pediculated, oval papilUr, bearing inclined, winged, cuticulai- 

 terminal plates, among which are scattered some much smaller 

 subconical papillae. Compared with typical examples of the species, 

 these papilliT are distinctly larger, with relatively shorter stalks and 

 less pronounced wings on the end plates. 



