54 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 15 



G. polygnatha resembles G. solitaria (see below) and G. oligodon 

 Southern in having dorsal cirri that are incised near the tip; they are 

 distinguishable from one another as indicated in the key (above). G. 

 polygnatha grossly resembles G. armigera Moore but the first is usually 

 the larger. Proboscidial organs also differ (compare plates 6 and 9) ; 

 the organs on area V are conspicuous in G. armigera and rudimentary 

 or absent in G. polygnatha. Micrognaths in the ventral arc are typically 

 present in G. polygnatha and absent from G. armigera Moore. 



Holotype and paratypes in the Allan Hancock Foundation. 



Type locality. — San Francisco Bay, California. 



Distribution. — Alaska south through Washington, Oregon and 

 California, south to San Francisco Bay; intertidal in sandy mud flats 

 and in shallow depths to 68 fms. 



Glycinde solitaria (Webster), revised 

 Plate 7, figs. 1-15 



Goniada solitaria Webster, 1879, p. 117; Webster, 1886, p. 146, pi. 7, 



figs. 41, 42, pi. 8, figs. 43, 44; Cowles, 1931, p. 341. 

 Hartman, 1945, p. 23. 



Collections. — Beaufort, North Carolina, from sandy shoal at low 

 tide line (1) ; Chesapeake Bay, Maryland (2). 



This is a small species; length of an ovigerous individual (preserved) 

 is only 20 mm complete. It consists of 101 segments of which the first 

 24 are uniramous, the others gradually biramous. 



The prostomium consists of 9 rings of which the basal one is much 

 the largest and longest. The 2 distalmost rings are incompletely sepa- 

 rated from each other, but the others are clearly marked. A conspicuous 

 pair of eyespots is visible dorsally, in the basal ring and there is a pair 

 of smaller ones in the distal ring, visible in ventrolateral view. The 4 

 distal antennae are small, subequal, slender, biarticulate and each has a 

 minute distal article. 



The proboscis (seen only by dissection) is covered with heter- 

 ogeneous organs as typical of the genus Glycinde. The distal end ter- 

 minates in a circlet of soft papillae. The paired ventral macrognaths 

 are large; each has 5 teeth that are largest on the dorsal end. Micro- 

 gnaths consist of a dorsal arc of about 10 pieces; there are no ventral 

 micrognaths. 



Proboscidial organs occur on areas I to V. Those of area I consist 

 of a single, longitudinal row of small, semiglobular pieces with an apical 

 pore and a sharp spine directed orally; there is a low boss on the side 

 opposite the spine, near the margin of the pore. Area II has 6 sets of 



