Delgado-Blas, Víctor H.; Diaz-Diaz, Oscar; Rozbaczylo, Nicolás. (2024). Laonice Malmgren, 1867 (Annelida: Spionidae) from the Aysén region in southern Chile with description of a new species. Zootaxa. 5551(1): 157-166.

500152

10.11646/zootaxa.5551.1.7 [view]

urn:lsid:zoobank.org:pub:43517112-40DA-4E69-8BFB-BEC55AC5AAF2 [view]

Delgado-Blas, Víctor H.; Diaz-Diaz, Oscar; Rozbaczylo, Nicolás

2024

5551(1): 157-166

Publication

https://www.mapress.com/zt/article/view/zootaxa.5551.1.7

Annelidabase

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Specimens of Laonice collected from southern Chile were examined, and one new species was described. Laonice ayseniensis sp. nov. is characterized by having an anteriorly fused prostomium and peristomium, giving a bicornate, cap-shaped appearance; nuchal organs and caruncle extending up to chaetigers 14–16; very small, subtriangular first notopodial postchaetal lamellae, shorter than the neuropodial lamellae; leaf-like notopodial postchaetal lamellae in the branchial region, with pairs 4, 13, and 14 larger and wider than the other pairs; very low dorsal transverse ridges on chaetigers 37–48; the first neuropodial postchaetal lamellae rectangular with rounded edges, oval with earlobe-shaped ventral edges on chaetigers 2–8; ventrolateral pouches from chaetigers 35–48 up to chaetiger 57; hooded hooks with a distal opening; a pygidium with two small ventral papilliform cirri arranged close to each other and five long cirri. Additional information about the morphological characters of L. praecirrata Hartmann-Schro¨der, 1965 is provided, using material collected near to the type locality. An identification key for all South American species is provided

Chile

Systematics, Taxonomy

Annelida
Polychaeta

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