352 THE ANNELIDA POLYCHAETA. 



in three groups. Of these the dorsal consists of simple bristles, the others of 

 compound ones of the usual form. The socket of the compound setae is slightly 

 asymmetrical, being deeper toward one side than the other; the blade is moder- 

 ately short, and slenderly acuminate, with the surface and edges apparently 

 wholly smooth. 



The proboscis in the type is only partly extended, and its detailed structure 

 is not described. The extended portion is about 8 mm. long and 3 mm. thick 

 at distal end. 



Locality. Gulf of California: Sta. 3435 (lat. 26° 48" N., long. 110° 45' 

 20" W.). Depth 859 fms. Bottom of brown mud with black specks. One 

 spechnen, of which the caudal end is missing, taken 22 April, 1891. 



This species in general structure suggests G. branchiopoda Moore which 

 has been recorded at depths varying from 222 to 1,400 fms. at localities from 

 Monterey Bay to the lat. of Cape Calnett, Lower Cahfornia. Both these species 

 occur at depths much greater than usual in the family. G. profundi is a larger 

 and much stouter species, which reaches its maxunum width farther cephalad; 

 the prostomium has nine rings in its distal portion mstead of but seven, and the 

 proportions are apparently considerably different; the caudal ring of the somite 

 is not largest; the first two parapodia differ in lacking any conspicuous, pointed, 

 presetal lobe; the other parapodia also differ in structure and proportions, the 

 neurocirrus, e.g., or ventral gill, of most segments being relatively much shorter, 

 never attaining the end of the parapodium, whereas in branchiopoda it decidedly 

 exceeds it; the dorsal gill is also relatively shorter. The blade of the compound 

 setae appears to lack denticulations, etc. 



Glycera fundicola, sp. nov. 



The type, which is caudally incomplete and is in two pieces, is a robust 

 specimen of uniform, Ught yellow color. 



The prostomial process is broadly conical, being rather wider across base 

 than long, compressed dorsoventrally, the depth being much less than the width. 

 Composed of seven distinct rings. Tentacles slenderly subulate. 



Anterior somites short and closely crowded as usual, those of the middle 

 and posterior region much longer. All very distinctly biannulate. 



The parapodia are long, moderately compressed in anterocaudal direction, 

 more strongly so distally. Each at the end presents four lobes, of which the 

 two presetal are long, slenderly conical and almost subulate, equal, while the 



