Redescripciones de Lepidasthenia elegans, L. digueti y Lepidametria commensalis (Polychaeta: Polynoidae)
DOI:
https://doi.org/10.22201/ib.20078706e.2025.96.5551Palabras clave:
Especie-tipo, Variación, Neurosetas gigantes, Lóbulos presetalesResumen
Para aclarar las diferencias entre Lepidasthenia Malmgren, 1867 y Lepidametria Webster, 1879, ejemplares de sus especies tipo fueron descritas e ilustradas. Se incluyen diagnosis para ambos géneros, una clave para especies de Lepidasthenia con neurosetas gigantes y una clave para especies de Lepidametria. Lepidasthenia elegans (Grube, 1840), descrita del golfo de Nápoles, tiene bloques negros alternantes con un segmento pálido, elitrígeros posteriores negros; segmentos medios y posteriores con élitros cada tercer segmento; parápodos sin notosetas; neurópodos con lóbulos pre- y postsetales enteros; segmentos medios con neurosetas superiores delgadas, 1-2 neurosetas gigantes apenas denticuladas y neurosetas de grosor medio unidentadas (dentículo accesorio diminuto). Lepidasthenia digueti Gravier, 1905, descrita del golfo de California asociada con balanoglósidos, es redescrita y restablecida. Lepidametria commensalis Webster, 1879, descrita asociada con poliquetos terebélidos en Virginia, EUA, tiene una banda parduzca transversa segmentaria a lo largo del cuerpo; segmentos medios con élitros y cirros alternantes, segmentos posteriores con series de 3-4 elitrígeros y 1 cirrígero; parápodos con notosetas; neurópodos alargados con lógulo presetal con área superior lobulada, inferior entera, lóbulo postsetal entero; neurosetas bidentadas, segmentos medios con neurosetas gigantes apenas denticuladas.
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