92 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 22 



transverse row, and IV has 5 or 6 large black cones, the largest on the 

 proboscis. On the oral ring, area V is bare, VI has 2 or 3 sharply 

 pointed cones, VII and VIII together have 4 black cones in a transverse 

 row; all are smaller than the cones on area IV. 



Parapodia are lateral throughout, with long triangular, dorsal, 

 middle and ventral lobes that change little in comparative proportions 

 except that they increase in length posteriorly and become pigmented. 

 The first 2 parapodial pairs are uniramous as is typical of the genus. 

 They have long, triangular dorsal and ventral cirri and parapodial lobes 

 that extend beyond their respective cirri. The proportions of middle 

 and posterior parapodia are shown in Plate 7, fig. 1. Dorsal and ventral 

 cirri are similar to each other except that the first is the longer and 

 is inserted at the dorsal edge of the notopodial lobe, proximal to a 

 patch of pigment. Its insertion continues in about the same relations 

 throughout the rest of the body. In postmedian segments the base of 

 the parapodium is prolonged, accounting for the ragged appearance of 

 this region of the body. 



Notopodia have slender composite spinigers supported by a tapering 

 black aciculum. In anterior segments these spinigers are in full fascicles, 

 but in middle segments they diminish in number, and are accompanied 

 by a homogomph falciger which is about one and a half times as thick 

 as the accompanying spiniger. The falcigers have an appendage that 

 is lens-shaped and finely denticulate along one edge (Plate 7, fig. 3). 

 Neuropodia have similar slender composite spinigers and a black 

 aciculum ; heterogomph falcigers are present in the subacicular parts 

 of the fascicle ; these have an appendage much longer than wide and 

 are denticulate along one edge (Plate 7, fig. 2). At greatest length the 

 appendage is about 8 times as long as wide. The posterior end tapers 

 gradually and ends in an anal ring provided with a pair of long, lateral 

 cirri, each about as long as the combined length of the last 8 segments. 



Nereis anoculis is characterized by lacking prostomial eyes; posterior 

 parapodia are prolonged in their basal parts. On the proboscis the 

 largest paragnaths are on area IV. It has been taken only in Tanner 

 and San Nicolas Basins. Another Nereis from great depths is N. profundi 

 Kirkegaard (1956, p. 67) from the Banda Trench in 7250-7290 m. 

 It measures 69 by 8 mm and is thus also a large form. Paragnaths on 

 the maxillary ring are numerous, whereas those on the oral ring are 

 limited to a single row of few cones; jaws have 5 teeth below the main 

 fang. 



