WoRMS source details
Tomioka, Shinri; Nishi, Eijiroh; Kajihara, Hiroshi. (2014). Two new species of Mediomastus (Annelida, Capitellidae) from Tokyo Bay, Japan. Zookeys. 422: 115-126.
193265
10.3897/zookeys.422.7501 [view]
Tomioka, Shinri; Nishi, Eijiroh; Kajihara, Hiroshi
2014
Two new species of Mediomastus (Annelida, Capitellidae) from Tokyo Bay, Japan
Zookeys
422: 115-126
Publication
World Polychaeta Database (WPolyDb)
Two undescribed species of polychaetes in Mediomastus (Annelida: Capitellidae) were collected from intertidal to shallow habitats in Tokyo Bay, Japan. These are M. duobalteus sp. n. and M. hanedaensis sp. n. Mediomastus duobalteus sp. n. is distinguishable from all congeners by the following characters: 1) segments 3, 4, 8-11 stainable with methyl green, 2) thoracic capillary chaetae unilimbate, 3) abdominal capillary chaetae absent, 4) paddle-like chaetae in the thorax absent, and 5) abdominal hooded hooks not flared. Mediomastus hanedaensis sp. n. is similar to M. warrenae Green, 2002, but differs from the latter in the shapes of the thoracic capillary chaetae and the abdominal hooded hooks, and the staining pattern with methyl green. In addition, a key to all Mediomastus species is provided.
Japan
Date
action
by
Mediomastus Hartman, 1944 (identification resource)
Mediomastus duobalteus Tomioka, Nishi & Kajihara, 2014 (original description)
Mediomastus hanedaensis Tomioka, Nishi & Kajihara, 2014 (original description)
Mediomastus duobalteus Tomioka, Nishi & Kajihara, 2014 (original description)
Mediomastus hanedaensis Tomioka, Nishi & Kajihara, 2014 (original description)
Holotype CBM CBM-ZW 1088, geounit Tokyo Bay, identified as Mediomastus duobalteus Tomioka, Nishi & Kajihara, 2014
Holotype CBM CBM-ZW 1095, geounit Tokyo Bay, identified as Mediomastus hanedaensis Tomioka, Nishi & Kajihara, 2014
Holotype CBM CBM-ZW 1095, geounit Tokyo Bay, identified as Mediomastus hanedaensis Tomioka, Nishi & Kajihara, 2014
Etymology
"noun in the nominative singular, from the Latin numeral duo (“two”) and the Latin noun balteus (“belt”), ... [details]
Etymology
an adjective, referring to the type locality, Haneda, Tokyo Bay. [details]
Type locality
Haneda, Tokyo Bay, Japan, 35.5278 N, 139.7885 E, ~5 m. [details]
Type locality
Haneda, Tokyo Bay, Japan, 35.5295 N, 139.7837 E, depth unstated [details]
Type material
CBM-ZW 1095. Described based on three incomplete specimens collected at one station only, St. 07s-L4e-1-c. [details]
