| Summary: | Chaetocirratulus tomaculus new species Figures 12–14 urn:lsid:zoobank.org:act: D1107CE4-A9FD-45B8-A942-937217AF999F Chaetozone gayheadia : Hartman & Fauchald 1971 (in part). Not Hartman 1965. Material examined . ( 147 specimens ) Off New England Near Veatch Canyon , R/ V Chain Sta. Cruise 50, coll. R. R. Hessler, Chief Scientist, Sta. Ch 87 : coll. 06 Jul 1965, 39°48.7′N, 70°40.8′W, 1102 m, holotype (LACM-AHF 12722), 11 paratypes (LACM-AHF Poly 12728); 130+ specimens including juveniles (LACM-AHF Poly 12729).— Off New England, U.S. North Atlantic ACSAR Program , coll. G.W. Hampson, Chief Scientist. Sta. 3: Cruise NA-3, Rep. 3, 03 Jul 1985, 41°01.43′N, 66°20.21′W, 1328 m (1, USNM 1660943); Cruise NA-5, Rep. 3, 28 Apr 1986, 41°01.35′N, 66°20.24′W, 1355 m (1, USNM 1660940). Sta. 9 : Cruise NA-1, Rep. 2, 12 Nov 1984, 39°50.44′N, 70°01.76′W, 1228 m (1, USNM 166041). Sta. 10 : Cruise NA 4, Rep. 2, 27 Nov 1985, 39°48.07ʹN, 70°05.32ʹW, 1234 m (1 juv., USNM 1660939); Rep. 3, 27 Nov 1985, 39°48.10ʹN, 70°05.33ʹW, 1219 m (1, USNM 1660942). Description . A moderately sized species, with a thick grub-like or sausage-shaped body, widest in middle segments, tapering at anterior and posterior ends (Fig. 13A). Holotype (Fig. 12A–B) with 48 setigers, 9.9 mm long and 1.0 mm wide across middle segments. Largest paratype with 52 setigers, 14.1 mm long and 2.1 mm wide (Fig. 13A). Parapodia located laterally along body with intersegmental grooves well developed throughout. Dorsal surface elevated above parapodia, rounded with surface partitioned into rows of longitudinal ridges or blocks along most of body (Figs. 12C, 14B); venter similarly configured with prominent intersegmental grooves, ridges and blocks. Dorsal and ventral grooves absent, but with a narrow ridge along venter extending from peristomium to posterior end. Color in alcohol tan; with minute inconspicuous pigment spots present or absent on ventral surface of peristomium posterior to mouth and first two setigers. Pre-setiger region short, about as wide as long; as ...
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