Pagurus trigonocheirus
Creators
Description
Pagurus trigonocheirus (Stimpson, 1858)
(Fig. 2)
Eupagurus trigonocheirus Stimpson, 1858: 249; 1907: 211, pl. 26 fig. 2.
Pagurus trigonocheirus. — Makarov, 1938b: 109; 1962: 109.— Kim, 1973: 234, text-fig. 55, pl. 6 fig. 35.— McLaughlin, 1974: 233, figs. 59, 60, pl. 1 figs. 1, 2.— Miyake, 1982: 126, pl. 42 fig. 4.— Asakura, 2006: 42, figs. 48–50.
Material examined. 2 males, 3 females, 4 juveniles (LEMMI), Russian Far East, Sea of Japan, Peter the Great Bay, opposite the Vostok Bay, depth 60–100 m, sandy-gravel bottom, Agassiz trawl, coll. I. Marin, 29 May 2014; 2 males, 3 females, 2 juveniles (LEMMI), Russian Far East, Sea of Japan, Peter the Great Bay, opposite the Ussuri Bay, depth 85 m, sandy-gravel bottom, Agassiz trawl, coll. I. Marin, 30 May 2014.
Morphological diagnostic features. The species can be clearly separated from the related congeners (Pagurus rathbuni (Benedict, 1892), Pagurus townsendi (Benedict, 1892), Pagurus dalli (Benedict, 1892) and Pagurus pubescens Krøyer, 1838) by the presence of a prominent concavity and well-marked crest on the minor (left) pereiopod I (cheliped) (Fig. 2 c, d), the absence of bristle setae on the distolateral margin of carpus of major (right) pereiopod I (see Fig. 2 e) and bright white spots on the carpo-propodal articulation of the chelipeds and ambulatory pereiopods in living specimens (Fig. 2 a).
Records from the Sea of Japan. Sublittoral, 50– 150 m. North of Mikuni (Fukui-ken), north and north-east of Noto (Yokoya 1933), Oshoro (Igarashi 1970) and Toyama Bay, Japan (Asakura 2006); east coast of Korea (Kim, 1973); the Peter the Great Bay, Russia (present study) (Fig. 1).
General Distribution. Subtidal to 497 m. Bering Sea, the Chukchi Sea, Aleutian Islands and Kamchatka coastline, Kuril Islands, Sakhalin, the Sea of Japan, Korea, the Pacific coasts of northern Japan southward to Inubo-zaki (Makarov 1938b, 1962 (as P. pubescens)); McLaughlin 1974; Miyake 1982; Asakura 2006; Komatsu & Komai 2009; Komai et al. 2015). Note that such wide distributions need to be verified for the reasons discussed above.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- LEMMI
- Event date
- 2014-05-29 , 2014-05-30
- Family
- Paguridae
- Genus
- Pagurus
- Kingdom
- Animalia
- Order
- Decapoda
- Phylum
- Arthropoda
- Scientific name authorship
- Stimpson
- Species
- trigonocheirus
- Taxon rank
- species
- Verbatim event date
- 2014-05-29 , 2014-05-30
- Taxonomic concept label
- Pagurus trigonocheirus (Stimpson, 1858) sec. Marin, 2020
References
- Stimpson, W. (1858) Prodromus descriptionis animalium evertebratorum, quae in expeditione ad Oceanum Pacificum Septentrionalem, a Republica Federata missa, Cadwaladaro Ringgold et Johanne Rodgers ducibus, observavit et descripsit. VII. Crustacea Anomura. Proceedings of the Academy of Natural Sciences of Philadelphia, 1858, 225 - 252. https: // doi. org / 10.5962 / bhl. title. 51447
- Stimpson, W. (1907) Report on the Crustacea (Brachyura and Anomura) collected by the North Pacific Exploring Expedition, 1853 - 1856. Smithsonian Miscellaneous Collections, 49, 1 - 240. https: // doi. org / 10.5962 / bhl. title. 51448
- Makarov, V. V. (1938 b) Rakoobraznyey. Anomura. In: Shtakel'berg, A. A. (Ed.), Fauna SSSR. New Series. Series 16. 10 (3). Academii Nauk, Moscow and Leningrad, pp. i-x + 1 - 324, pls. 1 - 5. [in Russian]
- Makarov, V. V. (1962) Crustacea, Anomura. In: Fauna of the USSR. X (3). Program for Scientific Translation, Jerusalem, Published for the National Science Foundation and Smithsonian Institution, Washington D. C., pp. 1 - 278, pls. 1 - 5. Israel [English translation of Makarov 1938 b]
- Kim, H. S. (1973) Anomura and Brachyura. Illustrated encyclopedia of fauna and flora of Korea, 14, 1 - 694.
- McLaughlin, P. A. (1974) The hermit crabs (Crustacea Decapoda, Paguridea) of Northwestern North America. Zoologische Verhandelingen, 130, 1 - 396.
- Miyake, S. (1982) Japanese crustacean decapods and stomatopods in color. I. Macrura, Anomura and Stomatopoda. Hoikusha Publishing, Osaka, 261 pp. [in Japanese]
- Asakura, A. (2006) Shallow water hermit crabs of the families Pylochelidae, Diogenidae and Paguridae (Crustacea: Decapoda: Anomura) from the Sea of Japan, with a description of a new species of Diogenes. Bulletin of the Toyama Science Museum, 29, 23 - 103.
- Yokoya, Y. (1933) On the distribution of decapod crustaceans inhabiting the continental shelf around Japan, chiefly based upon the materials collected by S. S. Soyo-Maru, during the year 1923 - 1930. Journal of the College of Agriculture, Imperial University of Tokyo, 12, 1 - 226.
- Igarashi, T. (1970) A list of marine decapod crustaceans from Hokkaido, deposited at the Fisheries Museum, Faculty of Fisheries, Hokkaido University. II. Anomura. Contribution from the Fisheries Museum, Faculty of Fisheries, Hokkaido University, 12, 1 - 15.
- Komatsu, H. & Komai, T. (2009) Thalassinidea, Anomura and Brachyura (Crustacea: Decapoda) from Northeastern Japan collected during the " research on deep-sea fauna and pollutants off Pacific Coast of Northern Japan " Project. In: Fujita, T. (Ed.), Deep-sea Fauna and Pollutants off Pacific Coast of Northern Japan. National Museum of Nature and Science Monographs, 39, pp. 581 - 613.
- Komai, T., Saito, Y. & Myorin, E. (2015) A new species of the hermit crab genus Pagurus Fabricius, 1775 (Crustacea: Decapoda: Anomura: Paguridae) from shallow coastal waters in Japan, with a checklist of the East Asian species of the genus. Zootaxa, 3918 (2), 224 - 238. https: // doi. org / 10.11646 / zootaxa. 3918.2.4