1011.] NATURAL SCIENCES OF PHILADELPHIA. oOo 



Prostomium 12-aiuiul:ito, tlio four apical tentacles minute. Segments 

 strongly biannulate. (Jills begin at XIV in the same j^osition as in 

 G. rugosa, but are much more complex than in that species. All are 

 branched, bvit the most anterior and posterior have only two or three 

 slender divisions. The most are very large and complex, reaching 

 from their place of origin at the posterior dorsal jtart of the foot over 

 most of its posterior face. The largest divide immediately at the base 

 into three or four large branches, each of which sjireads vertically 

 into a flat plane divided irregularly several times into slender filaments. 

 Most of the larger gills consist of thirt}'^ or forty filaments. Proboscis 

 53 mm. long and 7 mm. in diameter, but jaws not exposed, thickly 

 covered with pa])ilkp of the same form as those of G. rugosa. This 

 specimen agrees rather better with the description of G. chilensis, 

 especially in the form of the jaw ai)pendage and the mode of branching 

 of the gills. 



Station 4,322, off San Nicolas Island, 31-32 fathoms, gray sand 

 and shells. 



GONIADID^. 



Goniada annulata Moore. 



Goniada annulata Moore, Proc. Acad. Nat. t^ci. Phila., 1905, pp. 549-553, 

 Pi. XNNVI, figs. 45-48. 



A considerable representation of this species, usually only one 

 example from each station, shows a wide range of color variation from 

 yellow through light brown, gray and dark Ijrown to purple, usual!)' 

 more or less distinctly annulated, but some of the most deeph' pig- 

 mented ones nearly uniform. Some of them ar^ sexually mature. 

 Notopodial sette begin on XXXIII or XXXI\', in the latter case the 

 preceding parapodium being usually provided with a small achajtous 

 notopodium. The sexual region, characterized by long swimming 

 seta? and neural eye-spots, begins on different specimens at LI\', L\' 

 or L\T. The proboscis and its jaws and jiapilku agree very closely 

 with the types. 



Stations 4,307, off Point Loma Lighthouse, 490-496 fathoms, green 

 mud and fine sand; 4,326, off Point La Jolla, vicinity of San Diego, 

 243-264 fathoms, soft green mud; 4,325, same locality, 275-292 

 fathoms, green mud and fine sand; 4,352, off Point Loma Lighthouse, 

 vicinity of San Diego, 549-585 fathoms, green nuul; 4,353, same 

 locality, 628-640 fathoms, green mud; 4,366, same locality, 176-181 

 fathoms, green mud; 4,369, same locality, 260-284 fathoms, green 

 mud, sand and rock; 4,462, off Point Pinos Lighthouse, Monterey 

 Bay, 161-265 fathoms, green mud; 4,508, same locality, 292-303 



