FIGURE 30. Chaetocirratulus abyssalis n in Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R/V Anton Bruun, USNS Eltanin, USCG Glacier, R/V Hero, RVIB Nathaniel B. Palmer, and R/V Polarstern from the Southern Ocean, Antarctica, and off Western South America

FIGURE 30. Chaetocirratulus abyssalis n. sp. Holotype (USNM 60691): A, anterior end, left lateral view; B, mid-body setiger, showing neurosetae; C, smooth acicular neuropodial spine from same segment; D, narrow acicular spine from same segment; E, posterior end, dorsal view.