Nishi, Eijiroh; Hsieh, Hwey-Lian. (2009). Chaetopterid polychaetes from Taiwan and Okinawa Island (Japan), with descriptions of two new species. Zoological Studies. 48(3): 370-379.
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Nishi, Eijiroh; Hsieh, Hwey-Lian
2009
Chaetopterid polychaetes from Taiwan and Okinawa Island (Japan), with descriptions of two new species
Chaetopterid polychaetes (Annelida: Spionida) were studied in shallow-water sandy and muddy areas of Taiwan and Okinawa I., Japan. We found 4 species of the family, Mesochaetopterus japonicus Fujiwara, 1934, M. formosana sp. nov., Phyllochaetopterus verrilli Treadwell, 1943, and P. awasensis sp. nov. The former 3 species were found in Taiwan, and the latter 2 species at Okinawa. Mesochaetopterus formosana sp. nov. is characterized by having 2 middle-region (region B) chaetigers. These middle-region chaetigers are very long resulting in the middle region being 1.5-2 times longer than the anterior region (region A). Region A has 6-8 A4 modified cutting chaetae that have both small and large teeth on the head. Phyllochaetopterus awasensis sp. nov. is characterized by having 13 or 14 region A chaetigers, approximately 20 region B chaetigers, A4 chaetae with small teeth on the edge of the heads, and a tough brown chitinous tube. These are the first records of Mesochaetopterus japonicus and P. verrilli in Taiwanese waters. We compared the species reported here with other Pacific chaetopterids.
East China Sea
Japan
Taiwan
Western Pacific warm temperate and tropical