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Two new species of Mediomastus (Annelida, Capitellidae) from Tokyo Bay, Japan.

Tomioka S, Nishi E, Kajihara H - Zookeys (2014)

Bottom Line: 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.In addition, a key to all Mediomastus species is provided.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Natural History Sciences, Graduate School of Science, Hokkaido University, N10 W8, Sapporo 060-0810, Japan.

ABSTRACT
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.

No MeSH data available.


Related in: MedlinePlus

Mediomastus duobalteus sp. n., paratype, CBM-ZW 1090. A Capillary chaeta from segment 2 B notopodial hooded hook from segment 6 C neuropodial hooded hook from segment 6 D notopodial hooded hook from segment 20.
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Figure 4: Mediomastus duobalteus sp. n., paratype, CBM-ZW 1090. A Capillary chaeta from segment 2 B notopodial hooded hook from segment 6 C neuropodial hooded hook from segment 6 D notopodial hooded hook from segment 20.

Mentions: Figs 2–6


Two new species of Mediomastus (Annelida, Capitellidae) from Tokyo Bay, Japan.

Tomioka S, Nishi E, Kajihara H - Zookeys (2014)

Mediomastus duobalteus sp. n., paratype, CBM-ZW 1090. A Capillary chaeta from segment 2 B notopodial hooded hook from segment 6 C neuropodial hooded hook from segment 6 D notopodial hooded hook from segment 20.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4109449&req=5

Figure 4: Mediomastus duobalteus sp. n., paratype, CBM-ZW 1090. A Capillary chaeta from segment 2 B notopodial hooded hook from segment 6 C neuropodial hooded hook from segment 6 D notopodial hooded hook from segment 20.
Mentions: Figs 2–6

Bottom Line: 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.In addition, a key to all Mediomastus species is provided.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Natural History Sciences, Graduate School of Science, Hokkaido University, N10 W8, Sapporo 060-0810, Japan.

ABSTRACT
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.

No MeSH data available.


Related in: MedlinePlus