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Título del libro: Deep-Sea Pycnogonids And Crustaceans Of The Americas
Título del capítulo: Updated Checklist of Deep-Sea Amphipods (Amphilochidea and Senticaudata) from Western Mexico, NE Pacific Ocean

Autores UNAM:
IGNACIO CARLOS WINFIELD AGUILAR; MICHEL EDMOND HENDRICKX RENERS;
Autores externos:

Idioma:

Año de publicación:
2021
Palabras clave:

Amphipods; Deep water; Distribution; Diversity; Mexican Pacific


Resumen:

An updated checklist of deep-sea Amphilochidea and Senticaudata amphipods (excluding the caprelloids) documented for Western Mexico, in the NE Pacific, from bathyal to hadal zones (210-6000 m) is presented. Depth range, geographic distribution, and references are provided. A total of 118 deep-sea species have been reported from the area, grouped in 66 genera, 30 families, and 2 suborders. The suborder Amphilochidea is highly diverse with 110 species, 62 genera, and 27 families; in contrast, suborder Senticaudata includes 8 species, 4 genera, and 3 families. The most diversified amphipod families are Phoxocephalidae (12 genera, 18 species), Synopiidae (7 and 16), Oedicerotidae (4 and 14), Ampeliscidae (2 and 12), and Tryphosidae (6 and 10). The Western Mexico borderland includes 94 species, the Gulf of California 3, and the SW Mexican Pacific 5; in addition, Ampelisca pacifica, Epimeria morronei, Leucothoe spinicarpa, Aruga oculata, Heterophoxus oculatus, Metaphoxus frequens, and Hippomedon propinquus inhabit both the borderland and the Gulf of California. Stephonyx californiensis occurs in both the Gulf of California and the SW Mexican Pacific. Five species, Eyakia calcarata, Synopia scheeleana, Stephonyx laqueus, Bonnierella linearis, and Bonnierella californica, have been documented in the borderland and in the SW Mexican Pacific. Ampelisca romigi, Byblis veleronis, and Trischizostoma unam inhabit all three areas. Species numbers are very dissimilar according to depth, with 94% (111 species) in the bathyal zone vs. only 3 species in the abyssal zone and one species in the hadal zone. © Springer Nature Switzerland AG 2020. All rights reserved.


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