Rhamphostomella townsendi Osburn 1952

• Main Authors: Grischenko, Andrei V., Gordon, Dennis P., Taylor, Paul D., Kuklinski, Piotr, Denisenko, Nina V., Spencer-Jones, Mary E., Ostrovsky, Andrew N.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2022
• Subjects: Biodiversity; Taxonomy; Animalia; Bryozoa; Gymnolaemata; Cheilostomatida; Umbonulidae; Rhamphostomella; Rhamphostomella townsendi; Bering Sea; Alaska; Aleutian Islands
• Online Access: https://doi.org/10.5281/zenodo.6520701; http://treatment.plazi.org/id/038923740B72337AFF73ADAA1BC7F8B9

Rhamphostomella townsendi Osburn, 1952 (Fig. 21) Rhamphostomella townsendi Osburn, 1952, p. 430, pl. 51, figs 2, 3. Material examined. Holotype : USNM 11032, record name Che981–2, colony encrusting sponge, US Fish Commission Collection, RV Albatross , Stn 5695, 26 April 1911, Santa Rosa Island, SW of Channel Islands, Southern California, Pacific Ocean, 33°33.0ʹ N, 120°17.0ʹ W, depth 977 m. ZIRAS 1/50117, colony encrusting branch of erect bryozoan Microporina okadai , PIBOC Collection, RV Akademik Oparin , 14th Expedition, Stn 5, 2 August 1991, southeast off Medny Island, Commander Islands, Bering Sea, 54°12.0ʹ N, 168°37.3ʹ E, depth 569 m, Sigsbee trawl, collector A.V. Smirnov. ZIRAS 2/50118, one colony encrusting sponge, PIBOC Collection, RV Akademik Oparin , 14th Expedition, Stn 5, 2 August 1991, southeast off Medny Island, Commander Islands, Bering Sea, 54°12.0ʹ N, 168°37.3ʹ E, depth 569 m, Sigsbee trawl, collector A.V. Smirnov. Specimen AL–WP–0019–0022, M.H. Dick Collection, one colony, Alaska Fisheries Science Center and National Marine Fisheries Service Collection, FV Sea Storm , Haul 190, Stn 114–21, 23 July 2004, coastal waters of Amchitka Island, Rat Islands, western Aleutian Islands, Bering Sea, 51°51.6ʹ N, 178°27.8ʹ E, depth 224– 235 m, collector M.H. Dick. Measurements. ZIRAS 1/50117, Medny Island, Commander Islands, Bering Sea (Fig. 21C, F, H, I, K). ZL, 0.63–0.98 (0.76 ± 0.07) ( n = 20). ZW, 0.45–0.65 (0.53 ± 0.06) ( n = 20). ZD, 0.35–0.38 ( n = 2). OrL, 0.18–0.22 (0.20 ± 0.02) ( n = 10). OrW, 0.20–0.25 (0.22 ± 0.02) ( n = 10). OeL, 0.22–0.30 (0.26 ± 0.02) ( n = 10). OeW, 0.35–0.40 (0.37 ± 0.02) ( n = 10). Av(s)L, 0.12–0.17 (0.14 ± 0.02) ( n = 10). P(m)N, 12–19 (16) ( n = 10). P(oe)N, 24–41 (34) ( n = 6). Description. Colonies encrusting, multiserial, unilaminar (Fig. 21A), small, irregular in form, attaining about 5 mm in maximal dimension, light-brown to beige when dry. Zooids of medium size, rhombic, hexagonal to oval, sometimes tapering proximally (Fig. 21D, G, J), arranged in quincunx, ...