Published July 4, 2012 | Version v1
Taxonomic treatment Open

Pasiphaea chacei Yaldwyn 1962

Description

Pasiphaea chacei Yaldwyn, 1962

(Fig. 9 A–D)

Pasiphaea chacei Yaldwyn, 1962: 18, figs. 1–19. — Ebeling et al. 1969: 12. — Krygier & Pearcy 1981: 70. — Hendrickx & Estrada-Navarrete 1989: 111; 1996: 87, fig. 53. — Guzmán & Wicksten 1998: 2004. — Wicksten 2002: 133.

Diagnosis. Postfrontal tooth prominent, long, slender and acute. Carapace with dorsal carina on anterior 0.6 of surface, with suprabranchial carina; anterior margin produced dorsally into blunt, convex lobe, sinuous ventrally, branchioestegal tooth prominent. Eye well developed, pigmented. Antennular peduncle with narrow stylocerite. Basicerite with strong lateral tooth, scaphocerite reaching beyond antennular peduncle, with lateral tooth longer than blade. Third maxilliped reaching beyond scaphocerite, with exopod. All pereopods with exopods. Pereopod 1 with 0–12 meral spines, carpus with distoventral spine, slender chela. Pereopod 2 with 6–23 meral spines, carpus with distoventral spine, chela with fingers elongated, apices curved, capable of crossing one another. Pereopod 3 slender, pereopod 4 short, slender; pereopod 5 longer than pereopod, with broad dactyl. Abdominal somites without dorsal carina. Abdominal pleura rounded to concave. Telson somewhat shorter than abdominal somite 6,with longitudinal groove, truncate distal margin armed with 4 pairs spinules. Total length about 55 mm.

Color in life. Transparent with lightly scattered red chromatophores.

Habitat and depth. 0–1236 m, usually at 100–850 m.

Range. Oregon to Baja California, Mexico; northern Chile. Type locality San Pedro Basin, California.

Notes

Published as part of Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, pp. 1-307 in Zootaxa 3371 on pages 37-38

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Linked records

Additional details

Biodiversity

Family
Pasiphaeidae
Genus
Pasiphaea
Kingdom
Animalia
Order
Decapoda
Phylum
Arthropoda
Scientific name authorship
Yaldwyn
Species
chacei
Taxon rank
species
Taxonomic concept label
Pasiphaea chacei Yaldwyn, 1962 sec. Wicksten, 2012

References

  • Yaldwyn, J. C. (1962) A new Pasiphaea (Crustacea, Decapoda, Natantia) from southern California waters. Bulletin of the Southern California Academy of Sciences, 61, 15 - 24.
  • Krygier, E. E. & Pearcy, W. G. (1981) Vertical distribution and biology of pelagic decapod crustaceans off Oregon. Journal of Crustacean Biology, 1, 70 - 95.
  • Hendrickx, M. E. & Estrada-Navarrete, F. D. (1989) A checklist of the species of pelagic shrimps (Penaeoidea and Caridea) from the eastern Pacific, with notes on their geographic and depth distribution. California Cooperative Fisheries Investigations Report, 30, 104 - 121.
  • Guzman, G. & Wicksten, M. K. (1998) Nuevos registros de camarones de la Familia Pasiphaeidae (Crustacea, Decapoda) en el norte de Chile (18 r a 22 r lat. sur, 70 r a 72 r long W). Gayana Zoologia, 62, 203 - 210.
  • Wicksten, M. K. (2002) Midwater decapods of the northeastern Pacific. In: Hendrickx, M. E. (Ed.) Contributions to the Study of East Pacific Crustaceans. Vol. 1. Universidad Nacional Autonoma de Mexico, Mexico, D. F., pp. 127 - 144.