Kirkegaardia annulosa Hartman 1965, new combination

• Main Author: Blake, James A.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Ctenodrilidae; Kirkegaardia; Kirkegaardia annulosa; North Atlantic
• Online Access: https://zenodo.org/record/5612208; https://doi.org/10.5281/zenodo.5612208

Kirkegaardia annulosa (Hartman, 1965), new combination Figures 5–6 Tharyx annulosus Hartman, 1965: 167 –168, pl. 34 (In part); Hartman & Fauchald 1971: 111; Maciolek et al. 1987: Appendix D-2. Tharyx annulosa: Laubier 1966: 633 –637. Not Caulleriella annulosa Banse & Hobson, 1968: 31, fig. 7a (= Tharyx kirkegaardi Blake, 1991). Monticellina dorsobranchialis: Blake 1991: 24 –26 (In part). Material examined. Western North Atlantic, upper end of Atlantis Canyon, R /V Atlantis Sta. Slope 4, 39°56′30″N, 70°38′54″W, 400 m, coll. 28 Aug 1962, holotype and 75 paratypes (LACM-AHF Poly 0578–9).— Off Georges Bank, continental slope south Cape Cod, US North Atlantic ACSAR Program, Cruise 5, R/V Cape Hatteras, Sta. 12, replicate 2, 0 6 May 1986, 39°54.27′N, 70°55.17′W, 548 m, coll. G. Hampson, WHOI, Chief Scientist, 90 specimens (USNM 1407158); Cruise 6, R/V Cape Hatteras, Sta. 12, replicate 1, 30 July 1986, 39°54.24′N, 70°55.09′W, 563 m, coll. G. Hampson, WHOI, Chief Scientist, 110 specimens (USNM 1407159); Cruise 6, R/V Cape Hatteras, Sta. 12, replicate 3, 30 July 1986, 39°54.24′N, 70°55.09′W, 563 m, coll. G. Hampson, WHOI, Chief Scientist, 42 specimens (USNM 1407160). Description. Holotype elongate, narrow, in two pieces. Anterior fragment about 16 mm long, 0.3 mm wide for about 55 setigers; thoracic region with about 12 narrow segments before changing to moniliform shape, segments dorsoventrally flattened, about 3.5x wider than long, not crowded (Fig. 5 D). Posterior fragment about 4.5 mm long for about 45 setigers, thus entire holotype 20.5 mm long, 0.7 mm wide, for about 100 setigers. Color in alcohol light tan. Specimens from ACSAR station 12 off Georges Bank similar in appearance and size to holotype. One typical complete specimen with 12 thoracic setigers, long narrow abdominal region with 65 setigers and a posterior region of 11–12 setigers for a total of about 90 setigers measuring 16.65 mm long and 0.5 mm wide across thorax. Specimens from ACSAR Sta. 11 larger, similar in size to paratypes. Paratypes ...