期刊
REVISTA MEXICANA DE BIODIVERSIDAD
卷 94, 期 -, 页码 -出版社
INST BIOLOGIA, UNIV NACIONAL AUTONOMA MEXICO
DOI: 10.22201/ib.20078706e.2023.94.5213
关键词
Ilyphagus; Abyssal; Eastern Pacific; Gonopodial papillae
This paper describes a new species of abyssal polychaete, which has unique morphological characteristics and distribution range.
The taxonomy of abyssal polychaetes is problematic because they are fragile and easily damaged during collection. Ilyphagus Chamberlin, 1919 is an abyssal flabelligerid annelid genus that includes 4 species; a new species from the Eastern Pacific is herein described: I. gebruki n. sp. This new species is diagnosed as having a cigar-shaped body, more than 5 times longer than wide, with long body papillae, branchial plate with 8 branchial filaments, notochaetae with articles progressively longer, and neurochaetae smooth. The species ranges from off the Aleutian Islands to the Peru-Chile Trench and was sampled in sediments distributed between 5,047 and 7,000 m depth.
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