NO. 3 hartman: submarine canyons 39 



Aricidea (Aricidea) lopezi rubra, new subspecies 



Newport en, in 553 m (105), 642 m (17), 741 m (1). 



Santa Cruz en, in 676 m ( 10 ) 



Tanner en, in 603 m (13), 644 m (26), 1298 m (2). 



In size, eolor and general appearance these specimens resemble 

 Aricidea (Cirrophorus) furcata (see below). They agree with the stem 

 species, A. lopezi, in their neuropodial modified hooks; the branchiae 

 increase in length posteriorly and they are distally prolonged as a slender 

 filament ; they number 9 to 1 1 pairs and the last 2 pairs are slenderest. 

 The red color of the body is intensest in thoracic segments ; farther 

 back it is diffuse so that it forms transverse bars across the dorsum. 

 Neuropodia have transverse series of hooks distally capped by a pointed 

 hood. 



Some individuals are ovigerous ; ova are present in most segments 

 behind the second to fourth postbranchial segment. The subspecies 

 differs from the stem chiefly in color, and comes from deep instead of 

 shallow sea bottoms. 



Aricidea lopezi rubra is associated with other deepwater paraonids, 

 A. ramosa and Paraonis gracilis, and other polychaetes including Melin- 

 nexis, Lysippe, Antinoella and Glyccra capitata branchiopoda. 



Aricidea (Aricidea) nrsuecica Hartman, 1957 



Mugucn, in 119 m (4). 



Santa Monica en, in 330 m (7). 



Redondo en, north wall, in 120 m (2). 



Newport en, in 16 m ( 1 + ) , 97 m ( 1 ) . 



La Jolla en, in 79 m (2). 



Coronado en, in 123 m (6). 



Catalina en, in 914 m (154 large ) . 



Tanner en, in 298 m ( 1 ) . 



The largest, most abundant specimens come from Catalina canyon, 

 in 914 meters. They have long, hairlike setae in full tufts in notopodia 

 and neuropodia and may be in swarming stage. Length is about 20 mm 

 and width to 2 mm. The everted pharynx in some individuals is a large 

 smooth sack. The prostomial antenna is short and club-shaped. Abdom- 

 inal neuropodia have transverse series of simple aeicular hooks, slightly 

 sigmoid in the free length, in addition to slender, capillary setae. 



Aricidea (Aricidea) uschakowi Zachs, 1925 



Mugucn, in 721m (3), 755 m (3). 



Santa Monica en, in 463 m (2), 612 m (4). 



Redondo en, slope, in 310 m (2), fan, 652 m (3 fragments). 



