Eusergestes similis

• Main Author: Wicksten, Mary K.
• Format: Text
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Sergestidae; Eusergestes; Eusergestes similis; Bering Sea; Canada; Pacific; Perez; Estrada; Navarrete
• Online Access: https://dx.doi.org/10.5281/zenodo.5254811; https://zenodo.org/record/5254811

Eusergestes similis (Hansen, 1903) (Fig. 6F–N) Sergestes similis Hansen, 1903: 60, pl. 11, figs. 6a–d. — Schmitt 1921: 19, fig. 8. — Burkenroad 1937: 321. — Ebeling et al . 1969: 12. — Pearcy & Forss 1969: 755. — Word & Charwat 1976: 29. — Butler 1980: 47. — Krygier & Pearcy 1981: 73. — Hendrickx & Estrada-Navarrete 1989: 109; 1996: 61, fig. 39. — Pérez Farfante & Kensley 1997: 197. — Wicksten 2002: 131. Eusergestes similis .— Judkins & Kensley 2008: 76. Diagnosis ( after Butler1980). Rostrum sharply pointed, angled upward obliquely. Carapace with prominent supraorbital tooth, moderate hepatic spine. Five organs of Pesta present: prominent anterolateral pair, lateral midgastric pair, single posterolateral organ.Antennular peduncle slender. Scaphocerite not reaching end of third segment of antennular peduncle.Second maxilliped short, stout.Third maxilliped barely longer than third pereopod; dactyl of third maxilliped with 8 subsegments. Pereopods slender, pereopod 3 longer than others. Pereopods 4, 5 setose, each without dactyl. Abdominal somites with lateral sulci (difficult to see in preserved material). Telson shorter than uropods, with acute apex. Outer uropod without setae on outer margin. Total length 57–61 mm. Color in life. Transparent with orange-red spots over carapace and abdomen, telson, uropods and bases of appendages (Butler 1980, color plate 1). Habitat and depth. Pelagic, 50–2400 m, usually above 1000 m, between 200–600 m by day and 50–200 m by night. Range . Japan, Bering Sea to Gulf of California, off Chile, eastern South Atlantic in Benguela Current. Type locality "off Japan.” Remarks. This is one of the most common sergestids in California and Oregon. Cowles (1994) provided a detailed account of its swimming behavior. : 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 page 28 : {"references": ["Hansen, J. J. (1903) On the crustaceans of the genera Petalidium and Sergestes from the Challenger, with an account of the luminous organs in Sergestes challengeri n. sp. Proceedings of the Zoological Society of London, 1, 52 - 79.", "Schmitt, W. L. (1921) The marine decapod Crustacea of California. University of California Publications in Zoology, 23, 1 - 470.", "Burkenroad, M. J. (1937) The Templeton Crocker Expedition XII. Sergestidae (Crustacea Decapoda) from the lower California Region, with descriptions of two new species and some remarks on the organs of Pesta in Sergestes. Zoologica, 22, 315 - 329.", "Pearcy, W. G. & Forss, C. A. (1969) The oceanic shrimp Sergestes similis off the Oregon coast. Oceanography and Limnology, 14, 755 - 765.", "Word, J. & Charwat, D. (1976) Invertebrates of Southern California Coastal Waters. II. Natantia. Southern California Coastal Water Research Project, El Segundo, California. 238 pp.", "Butler, T. H. (1980) Shrimps of the Pacific Coast of Canada. Canadian Bulletin of Fisheries and Aquatic Science, 202, 1 - 280.", "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.", "Perez Farfante, I. & Kensley, B. (1997) Penaeoid and sergestoid shrimps and prawns of the world. Memoires du Museum national d ' Histoire naturelle (Paris), 175, 1 - 223.", "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.", "Judkins, D. C. & Kensley, B. (2008) New genera in the family Sergestidae (Crustacea: Decapoda: Penaeidea). Proceedings of the Biological Society of Washington, 121, 72 - 84.", "Cowles, D. L. (1994) Swimming dynamics of the mesopelagic vertically migrating penaeid shrimp Sergestes similis: modes and speeds of swimming. Journal of Crustacean Biology, 14, 247 - 257."]}