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Title: | Leucothoe kawesqari, a new amphipod from Bernardo O'Higgins National Park (Chile), with remarks on the genus in the Magellan Region (Crustacea, Peracarida) |
Author: | Esquete, Patricia Aldea, Cristian |
Keywords: | Pacific Ocean channels and fjords Southern Ocean benthos Macrocystis pyrifera |
Issue Date: | 2015 |
Publisher: | Pensoft Publishers |
Abstract: | Although the genus Leucothoe has been reported repeatedly in the Magellan Region, the citations in
the Channels and Fjords Ecoregion were either unidentified or attributed to the previously considered
cosmopolitan Leucothoe spinicarpa. In this work, Leucothoe kawesqari sp. n. is described, which can be distinguished
from other species of the genus in the Southern Ocean by having eyes present, epimeral plates
with no setae, anterior coxae not acutely produced or excavate, coxa 5 slightly bilobed, accessory flagellum
present, mandibular palp article 3 shorter than ½ article 2, pereopods 5–7 basis expanded, ovoid, posterior
margin weakly crenulate and telson apex irregularly truncated. The new species was found in hard
substrates, both unvegetated and with macroalgae, mainly in kelp forest of Macrocystis pyrifera. A pesar de que el género Leucothoe ha sido citado en la región Magallánica en repetidas ocasiones, las citas en la Ecorregión de Canales y Fiordos o bien no han sido identificados o atribuidos a la antes considerada especie cosmopolita L. spinicarpa. En este trabajo se describe L. kawesqari sp. n., que se distingue de otras especies del género que se encuentran en el Océano Antártico por presentar ojos, placas epimerales sin setas, coxas anteriores no puntiagudas ni excavadas, coxa 5 ligeramente bilobulada, flagelo accesorio, artículo 3 del palpo mandibular más corto que la mitad del artículo 2, bases de los pereiópodos 2–7 expandidas con el margen ligeramente crenulado y ápice del telson truncado e irregular. La nueva especie fue encontrada en sustratos duros, tanto sin vegetación como con macroalgas, dominadas por bosques de huiros de la especie Macrocystis pyrifera. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/16905 |
DOI: | 10.3897/zookeys.539.6157 |
ISSN: | 1313-2989 |
Appears in Collections: | CESAM - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Esquete e Aldea - 2015 - Leucothoe kawesqari, a new amphipod from Bernardo .pdf | 1.72 MB | Adobe PDF | View/Open |
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