76 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 15 



Glycera capitata Oersted 

 Plate 11, figs. 1-4 



G. nana Johnson, 1901, p. 411, pi. 10, fig. 103; Berkeley, 1942, p. 193. 

 Moore 1911, pp. 299-300; Fauvel, 1923, p. 385; fig. 151; Berkeley, 



1941, p. 33. 

 ?Hemipodia canadensis Treadwell, 1937, pp. 348-349, figs. 1-3. 



Collections.— 887-38 (1); 915-39 (1); 992-39 (1); 994-39 (1) 

 1026-39 (1); 1036-40 (1); 1130-40 (3); 1131-40 (1); 1137-40 (1) 

 1142-40 (1); 1152-40 (1); 1168-40 (1); 1191-40 (1); 1192-40 (1) 

 1202-40 (1); 1214-40 (1); 1220-40 (1); 1223-41 (1); 1229-41 (1) 

 1274-41 (1); 1275-41 (1); 1288-41 (1); 1289-41 (1); 1300-41 (1) 

 1311-41 (1); 1321-41 (1); 1387-41 (5); 1388-41 (1); 1396-41 (3) 

 1402-41 (1); 1411-41 (1); 1412-41 (1); 1413-41 (1); 1422-41 (1) 

 1435-41 (1); 1436-41 (1); 1471-42 (fragments); 1479-42 (2) 

 1489-42 (1) ; Prince William Sound, Alaska, collected by W. E. Ritter 

 (2); Port Orchard, Washington (1); San Francisco Bay, U.S.S. Al- 

 batross station D 5830 (1); Kodiak Island, Alaska (6); Sitka and 

 vicinity, Alaska (20). 



The numerous individuals listed above may be divided into 3 groups, 

 based on the relative lengths of parapodial lobes. In one group the 

 dorsal presetal lobe and ventral cirrus are short and smaller than the 

 ventral presetal lobe (fig. 3) ; all of these specimens originate from 

 northern waters including Alaska, Washington and Oregon. In a second 

 group the dorsal presetal lobe and ventral cirrus are longer, about equal 

 to, or approaching in size the ventral presetal lobe (fig.l); these in- 

 dividuals originate from southern California. In a third group the dorsal 

 presetal lobe and ventral cirrus are conspicuously longer and inflated, 

 some have large ova (fig. 2) ; these may have also longer setae and are 

 perhaps approaching an epitokous condition; these specimens originate 

 from southern California and the Gulf of California (stations 1026-30, 

 1036-41, 1223-41, 1402-41 and 1422-41). On the whole, the individ- 

 uals from Alaska are larger and more robust than those from California. 

 The former attain a length of 150 mm, the latter 50 mm or less. Individ- 

 uals from Washington and Oregon are intermediate in size. 



The paragnathal aileron is broadly flaring at the base and has a 

 long main slender fang (fig. 4). The proboscidial organs are of 2 

 kinds; most are smaller, slender, thickly strewn over the surface; a 

 few are larger, subspherical, distributed largely along the 18 longitu- 

 dinal bands that correspond to the underlying muscular strands. All 

 organs are soft, lacking surface ornamentation ; they have a subterminal 

 pore that is directed away from the jaws. 



