evolution;
systematics;
New Caledonia;
Norfolk Ridge;
coral;
WATER CORALS;
DIVERSITY;
D O I:
10.11646/zootaxa.3900.4.8
中图分类号:
Q95 [动物学];
学科分类号:
071002 ;
摘要:
Leptohelia flexibilis gen. nov. et sp. nov., the first stylasterid with a combined calcified and non-calcified skeleton, is described from seamounts and the slope off the islands of New Caledonia, in the southwestern Pacific. The new species is distinguished from all other species of the family Stylasteridae by having a non-calcified organic axis, internal to the basal portion of the calcified corallum. The internal axis is flexible and enclosed by a series of up to 10 calcified annuli, allowing passive lateral bending of the colony. Molecular phylogenetic analyses confirm that Leptohelia flexibilis is a stylasterid coral and reveal that the species is closely related to Leptohelia microstylus comb. nov., a southwestern Pacific stylasterid that lacks an internal axis.
机构:
Univ Fed Rio de Janeiro, Entomol Lab, Dept Zool, Inst Biol,Ilha Fundao, Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Entomol Lab, Dept Zool, Inst Biol,Ilha Fundao, Rio De Janeiro, Brazil
Lima Da Silveira, Luiz Felipe
Mermudes, Jose Ricardo M.
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机构:
Univ Fed Rio de Janeiro, Entomol Lab, Dept Zool, Inst Biol,Ilha Fundao, Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Entomol Lab, Dept Zool, Inst Biol,Ilha Fundao, Rio De Janeiro, Brazil
机构:
Univ Hong Kong, Dept Ecol & Biodivers, Pokfulam Rd, Hong Kong, Peoples R ChinaUniv Hong Kong, Dept Ecol & Biodivers, Pokfulam Rd, Hong Kong, Peoples R China
Goh, TK
Hyde, KD
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机构:
Univ Hong Kong, Dept Ecol & Biodivers, Pokfulam Rd, Hong Kong, Peoples R ChinaUniv Hong Kong, Dept Ecol & Biodivers, Pokfulam Rd, Hong Kong, Peoples R China