314 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



St. 1431-41. Whites Cove, Catalina Island, California. Dredged, sand. 



Phragmatopoma calif orntca (Fewkes) 

 St. 1437-41. Sabellaria gracilis, new species 

 St. 1438-41. Newport Harbor Channel, California. Shore. 



Ctenodrilus serratus (Schmidt) 

 St. 1441-41. Corona del Mar, California. Shore, in muddy sand flats, 



north of biological station. 



Aricidea pacificOj new species 



Family Paraonidae 



This small family has affinities with the Orbiniidae and Spionidae. 

 Three genera are generally recognized, including ( 1 ) Aricidea Webster 

 (1879), (2) Cirrophorus Ehlers (1912), and (3) Paraonis Grube 

 (1872) with subgenus Paraonides Cerruti (1909). The genus Aricide- 

 opsis Johnson (1901) is herein referred to the Spionidae (see below). 



Key to Genera of Paraonidae 



1. Prostomium with a median antenna 2 



1. Prostomium without a median antenna Paraonis 



2. Some posterior segments with acicular notopodial hooks . . . 

 Cirrophorus 



2. Posterior segments without specialized hooks in notopodia, with 

 or without crotchets or lyre setae Aricidea 



Several species in the genus Aricidea have been recorded from the 

 American east coast, including A. fragilis Webster (1879, p. 255), A. 

 nolani, and A. quadrilobata, both by Webster and Benedict (1887, pp. 

 739-740) (but see below), and an unidentified one, questionably of this 

 genus, from British Columbia (Berkeley, 1927, p. 413). The last is 

 characterized in having branchiae on segments 5 to 17, anterior segments 

 are provided with rather heavy, simple setae in both rami, and posterior 

 neuropodia have heavy, simple hooks ; it may represent an unnamed 

 species. Aricidea alata Treadwell (1902, p. 202), from Puerto Rico, has 

 been earlier referred to the spionids (Hartman, 1941, p. 293). 



Aricidea megalops Johnson (1901, p. 413), from Washington, was 

 based on a single specimen. It is characterized in having foliaceous lobes 

 in both notopodia and neuropodia, the dorsal anterior ones largest; 

 slender, pointed setae are in both rami throughout, except the last 2 or 3 

 segments, and hooded crotchets in neuropodia from the eighteenth seg- 

 ment. The prostomium is broadly rounded in front, has an occipital ten- 



