496 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



Color in life is brilliant red with richly colored, reddish brown, 

 saddlelike spots, segmentally arranged on the anterior side of notopodia. 

 These patches are characterized by a thick, leathery epithelium and appear 

 to be glandular. A small spot of a similar color is present on the ventral 

 face of neuropodia, near the base, likewise segmentally arranged. 



P. maculata has been recovered twice from deep crevices in hard 

 sandstones in low intertidal zones at Marine View, San Mateo County, 

 California in July, 1933. Another record is from shallow dredging in 

 the middle of San Francisco Bay, associated with sand. 



P. maculata differs from other species of the genus in the relations of 

 its prostomial parts, its unique parapodial structures and possibly in its 

 habitat. It is distinguished from each of the others in the key. 



Holotype. — AHF no. 74; paratypes in the Allan Hancock Foun- 

 dation. 



Type locality. — Marine View, San Mateo County, California, in 

 crevices of hard sandstones in low intertidal zones. 



Distribution. — Central California, coast and San Francisco Bay; 

 intertidal to 9 fms. 



Genus ANGISTROSYLLIS Mcintosh, 1879 

 Type A. groenlandica Mcintosh 



Includes Phronia Webster, 1879, Harpochaeta Korschelt, 1893, and 

 Kynephorus Ehlers, 1920, and \iO?,s\\AY Sigambra Mliller, 1858. 



The body is long, depressed to somewhat cylindrical and consists of 

 many similar segments. The prostomium is small and inconspicuous 

 (pi. 62, fig. 1) or larger and more obvious (pi. 61, fig. 1). Prostomial 

 antennae number 3 and may be short and fusiform or much longer and 

 tentacular; when shorter the individual resembles a syllid, when longer 

 it is more nearly like an onuphid. Eyes may be absent or represented by 2 

 or 4 eyes on the prostomial lobe. Palpi are distinctly biarticulated but the 

 palpophore greatly exceeds the palpostyle in size; they are located in 

 front of the paired prostomial lobes. The proboscis is muscular, eversible 

 and cylindrical; it terminates distally in a circlet of soft papillae (pi. 61, 

 fig. 2) or its margin may be nearly or quite smooth. The distal aperture 

 of the proboscis is a vertical slit (at least in some instances). There are 

 no jaws or other hard, chitinous pieces in so far as known. 



The first segment or peristomium has 2 pairs of longer or shorter 

 cirri but no parapodia or setae. Typical parapodia are biramous. Noto- 



