Eualus lineatus Wicksten & Butler 1983

• Main Author: Wicksten, Mary K.
• Format: Text
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Hippolytidae; Eualus; Eualus lineatus; San Juan; Canada; Pacific; Herdman; Archipelago; Alaska
• Online Access: https://dx.doi.org/10.5281/zenodo.5254939; https://zenodo.org/record/5254939

Eualus lineatus Wicksten & Butler, 1983 (Fig. 19A) Eualus lineatus Wicksten & Butler, 1983: 3, figs. 1–2. — Wicksten 1990b: 593. — Jensen & Johnson 1999: 133. — Chace 1997: 43. — Jensen 2004: 468. Spirontocaris herdmani Rathbun 1904: 100 [part, not Spirontocaris herdmani Walker, 1898]. Eualus herdmani Holthuis 1947: 11 (part). — Kozloff 1974: 166. — Butler 1980: 197, pl. 1C (part). Diagnosis. Rostrum slender, not reaching end of second segment of antennular peduncle, with 3–6 dorsal, 1–3 ventral teeth. First segment of antennular peduncle with 3 spines, other two segments with 2 spines each, stylocerite reaching or surpassing end of first segment; with curved, dorsal spine near base. Carapace with small suborbital tooth, strong antennal tooth, moderate pterygostomian tooth. Pereopods 1–3 with epipods. Pereopod 1 stout. Pereopods 3–5 slender, with spinose dactyls. Merus of pereopod 3, with 3 spines; pereopod 4, with 2–3 spines; pereopod 5, with 0–1 spine. Pleura of abdominal somites 13 rounded, 4–5 with points. Telson with 3 pairs dorsolateral spines. Male total length 20 mm, female 25 mm. Color in life. Carapace, abdomen marked with broad orange bands against translucent background (Jensen & Johnson 1999). Habitat and depth. Rocks, rocky reefs; often among sponges, 12–232 m. Range. Naha Bay, Alaska to Santa Cruz I., California. Type locality SW of Gull I., off Santa Cruz I., California. Remarks. This species has been confused with Heptacarpus herdmani (Walker, 1898), despite Walker's original description, which stated that the species lacked an exopod on the third maxilliped. Heptacarpus herdmani is currently known only from the type specimen from Puget Sound. The species also was confused with E . subtilus Carvacho & Owen, 1984; but can be distinguished easily in life by its colorful stripes and larger size than E . subtilis (Jensen & Johnson 1999). Eualus lineatus seems to be more common in colder water north of Point Conception or in areas of upwelling along the islands of southern California. : 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 78 : {"references": ["Wicksten, M. K. & Butler, T. H. (1983) Description of Eualus lineatus new species, with a redescription of Heptacarpus herdmani (Walker) (Caridea: Hippolytidae). Proceedings of the Biological Society of Washington, 96, 1 - 6.", "Wicksten, M. K. (1990 b) Key to the hippolytid shrimp of the eastern Pacific Ocean. United States Fishery Bulletin, 88, 587 - 598.", "Jensen, G. C. & Johnson, R. C. (1999) Reinstatement and further description of Eualus subtilis Carvacho and Olson, and comparison with E. lineatu s Wicksten and Butler (Crustacea; Decapoda; Hippolytidae). Proceedings of the Biological Society of Washington, 112, 130 - 140.", "Chace, F. A. Jr. (1997) The caridean shrimps (Crustacea: Decapoda) of the Albatross Philippine Expedition, 1907 - 1910, Part 7: families Atyidae, Eugonatonotidae, Rhynchocinetidae, Bathypalaemonellidae, Processidae, and Hippolytidae. Smithsonian Contributions to Zoology, 587, 1 - 106.", "Jensen, G. C. (2004) Status of Eualus pusiolus in the northeastern Pacific, with a description of a new species of Eualus (Decapoda: Hippolytidae). Journal of Crustacean Biology, 24, 463 - 469.", "Rathbun, M. J. (1904) Decapod crustaceans of the northwest coast of North America. Harriman Alaska Expedition, 10, 1 - 219.", "Walker, A. (1898) Crustacea collected by W. A. Herdman in Puget Sound, Pacific coast of North America, September, 1897. Proceedings and Transactions of the Liverpool Biological Society, 12, 268 - 287.", "Holthuis, L. B. (1947) The Decapoda of the Siboga expedition Part IX: the Hippolytidae and Rhynchocinetidae. Siboga Expeditie, 39 a (8), 1 - 100.", "Kozloff, E. N. (1974) Keys to the Marine Invertebrates of Puget Sound, the San Juan Archipelago, and Adjacent Regions. University of Washington Press, Seattle, 226 pp.", "Butler, T. H. (1980) Shrimps of the Pacific Coast of Canada. Canadian Bulletin of Fisheries and Aquatic Science, 202, 1 - 280."]}