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A new species of Eusirus from Jeju Island, Korea (Crustacea, Amphipoda, Eusiridae).

ABSTRACT: A new eusirid amphipod, Eusirus bulbodigitussp. n., from Jeju Island, Korea is described with a detailed description and illustrations. Eusirus bulbodigitussp. n. shows common features with the five known eusirid amphipods Eusirus abyssi Stephensen, 1944, Eusirus columbianus Bousfield & Hendrycks, 1995, Eusirus hirayamae Bousfield & Hendrycks, 1995, Eusirus laticarpus Chevreux, 1906, and Eusirus parvus Pirlot, 1934, such as the mandibular palp article 3 bearing a group of setae laterally. However, this new species is differentiated by the combination of the following characteristics: the eyes are poorly developed, the propodus on pereopod 4 is slightly shorter, the inner margin of dactylus on pereopod 4 is swollen, the length of pereopods 5-7 is moderate, the urosomite 1 has a dorsal protrusion distally, and the telson is shallowly cleft. This is the first record of the genus Eusirus Krøyer, 1845 from Korean waters.

SUBMITTER: Jung TW

PROVIDER: S-EPMC5240363 | biostudies-other | 2016

REPOSITORIES: biostudies-other

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A new species of Eusirus from Jeju Island, Korea (Crustacea, Amphipoda, Eusiridae).

Jung Tae Won TW Kim Min-Seop MS Soh Ho-Young HY Yoon Seong Myeong SM

ZooKeys 20161213 640

A new eusirid amphipod, Eusirus bulbodigitussp. n., from Jeju Island, Korea is described with a detailed description and illustrations. Eusirus bulbodigitussp. n. shows common features with the five known eusirid amphipods Eusirus abyssi Stephensen, 1944, Eusirus columbianus Bousfield & Hendrycks, 1995, Eusirus hirayamae Bousfield & Hendrycks, 1995, Eusirus laticarpus Chevreux, 1906, and Eusirus parvus Pirlot, 1934, such as the mandi ...[more]

PMID: 28138283

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