WoRMS source details

Salazar-Vallejo, Sergio; Buzhinskaja, Galina. 2013. Six new deep-water sternaspid species (Annelida, Sternaspidae) from the Pacific Ocean. ZooKeys 348(0): 1-27
171246
10.3897/zookeys.348.5449 [view]
Salazar-vallejo, S.; Buzhinskaja, G.
2013
Six new deep-water sternaspid species (Annelida, Sternaspidae) from the Pacific Ocean
ZooKeys
348, 1-27
Publication
World Polychaeta Database (WPolyDb), open access
Most sternaspid species have been described from shallow water, and Caulleryaspis Sendall & Salazar-Vallejo, 2013 includes one deep water species: C. gudmundssoni Sendall & Salazar-Vallejo, 2013 from Iceland. In Sternaspis Otto, 1821, the most speciose genus, most species were described from shallow water and only three thrive in deep water: S. maior Chamberlin, 1919 from the Gulf of California, S. princeps Selenka, 1885 from New Zealand, and S. riestchi Caullery, 1944 from Indonesia. The study of some deep sea sternaspids from the Pacific Ocean in the collections of six research institutions resulted in the discovery of six undescribed species, and for three of them there were abundant materials showing ventro-caudal shield development. Caulleryaspis fauchaldi sp. n. is described based on specimens from Oregon and California; it differs from the known species because it has a shield with rounded anterior margins and its peg chaetae form thin, small spines. Caulleryaspis nuda sp. n. was collected off Oregon; it is unique because its shield lacks a layer of sediment particles firmly attached, but has instead a thin layer of small particles loosely attached. Four other species are newly described in Sternaspis: S. annenkovae sp. n. was collected east off the northern Kurile Islands in about 4,000 m depth; it differs from other species bya bicolored body, with the introvert darker than the abdomen, and its ventro-caudal shield plates are divergent resulting in a divided fan. The second species, S. maureri sp.n. was found off Peru in 1296-6489 m water depths and in the Southwestern Pacific in 795-3830 m; it resembles S. williamsae sp. n. but differs because its shield has better-developed ribs, the fan has a shallow or indistinct median notch and has lateral notches well-developed. The third species, S. uschakovi sp. n., was found in the Okhotsk Sea in 592-1366 m, off California in 1585 m, Gulf of California in 1200-1274 m, and Western Mexico in 2548 m; it resembles S. africana Augener, 1918 and S. andamanensis Sendall & Salazar-Vallejo, 2013 inshields with a denticulate posterior margin; the latter two species live in shallow water and they differ from each other and from the new species by a combination of shield and papillae features. The fourth species, S. williamsae sp. n., was found off Oregon in 1000-2400 m, and off California in 878-1246 m; it resembles S. annenkovae because both species have shields with fans narrower than the anterior margin width, but differ in the relative development of shield features and in the relative size of prostomium and mouth; as stated above it also resembles S. maureri sp. n. but its shield has poorly-developed ribs, its median notch is distinct, and the lateral notches are poorly developed or indistinct. Keys to identify all species of Caulleryaspis and Sternaspis are also included.
Pacific Ocean
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Date
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2013-11-09 05:31:16Z
created

Holotype CAS CAS 129027h, identified as Caulleryaspis nuda Salazar-Vallejo & Buzhinskaja, 2013
Holotype LACM LACM 5353, identified as Sternaspis williamsae Salazar-Vallejo & Buzhinskaja, 2013
Holotype LACM LACM 5679, identified as Sternaspis maureri Salazar-Vallejo & Buzhinskaja, 2013
Holotype ZISP ZIRAS 50602, identified as Sternaspis annenkovae Salazar-Vallejo & Buzhinskaja, 2013
Holotype ZISP ZIRAS 50604, identified as Sternaspis uschakovi Salazar-Vallejo & Buzhinskaja, 2013
Checked: verified by a taxonomic editor Etymology

"name is derived from the Latin adjective nudus (a, um): naked, to indicate that unlike other species in the genus, ... [details]

Checked: verified by a taxonomic editor Etymology

Named after Dr Don Maurer. The epithet is a noun in the genitive case. [details]

Checked: verified by a taxonomic editor Etymology

named after Dr. Kristian Fauchald [details]

Checked: verified by a taxonomic editor Etymology

Named after Susan Williams. The epithet is a noun in the genitive case. [details]

Checked: verified by a taxonomic editor Etymology

Named after the late Dr. Pavel V. Uschakov. The epithet is a noun in the genitive case. [details]

Checked: verified by a taxonomic editor Etymology

Named for the late Dr. Nadezhda P. Annenkova, in recognition of her many publications on polychaetes. The epithet ... [details]

Checked: verified by a taxonomic editor Type locality

Cascadia Abyssal Plain, west of Yaquina Bay, 44°30.0'N, 125°34.0'W; 44°39.0'N, 125°33.2'W) [details]

Checked: verified by a taxonomic editor Type locality

East of Kurile Islands, near Kuril Trench, S of Kamchatka, 49°46'01"N, 157°48'06"E, 3980–4070 m [details]

Checked: verified by a taxonomic editor Type locality

Eastern Pacific Ocean off Trujillo, Peru, 08°16 S, 81°05 W, 6156–6489 m [details]

Checked: verified by a taxonomic editor Type locality

off Yaquina Bay, Oregon, USA Pacific coast, 44°30.0'N, 125°34.0'W; 44°39.0'N, 125 33.2 W), 2800 m [details]

Checked: verified by a taxonomic editor Type locality

Offshore of Washington State, USA Pacific coast (48°9.0'N, 127°4.2'W), 2519 m. Authors name the site as off ... [details]

Checked: verified by a taxonomic editor Type locality

Okhotsk Sea, R.V. Gagara, Sta. 251 (55°13'N, 146°52'E), 592 m. [details]