A new species of Ambilimbus nom. nov., a replacement name for Amphicrossus Huys, 1991 (Copepoda, Cyclopoida, Erebonasteridae), from the Mid-Atlantic Ridge at 36 degrees N (hydrothermal vent site Rainbow)статья

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[1] Ivanenko V. N., Defaye D., Huys R. A new species of ambilimbus nom. nov., a replacement name for amphicrossus huys, 1991 (copepoda, cyclopoida, erebonasteridae), from the mid-atlantic ridge at 36 degrees n (hydrothermal vent site rainbow) // Marine Biology Research. — 2005. — Vol. 1, no. 3. — P. 233–241. A new deep-sea species of Ambilimbus nom. nov. (Copepoda, Cyclopoida, Erebonasteridae) is described from the Mid-Atlantic Ridge (hydrothermal vent site Rainbow, 36 degrees 13’N 33 degrees 54’W, depth 2285 m). This is the first record for the family Erebonasteridae Humes, 1987 from the Mid-Atlantic Ridge. Ambilimbus nom. nov. is here proposed as a replacement name for Amphicrossus Huys, 1991, as the latter is preoccupied by Amphicrossus Erichson, 1843 (Insecta, Coleoptera). The new species, Ambilimbus arcuscelestis, is similar to A. pacificus (Huys, 1991) comb. nov. and A. tuerkayi (Martinez Arbizu, 1999) comb. nov. in having the third exopodal segments of legs 1 and 2 armed with four and five inner setae, respectively (instead of three and four inner setae as in A. spinulosus (Humes, 1989) comb. nov. and A. altalis (Humes & Huys, 1992) comb. nov.). It differs from its four congeners by the lack of the inner coxal seta on leg 3. This character and the mid-ventral processes located between the intercoxal sclerites of legs 1-4 are presumed to be apomorphies of the new species. [ DOI ]

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