Pagurus samuelis (Stimpson, 1857)

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 192-193

publication ID

1175­5334

DOI

https://doi.org/10.5281/zenodo.5255240

persistent identifier

https://treatment.plazi.org/id/C5657B52-FF23-B3D3-44D1-FA55C9720AD8

treatment provided by

Felipe

scientific name

Pagurus samuelis (Stimpson, 1857)
status

 

Pagurus samuelis (Stimpson, 1857) View in CoL

( Fig. 45C–G, Pl. 10A)

Eupagurus samuelis Stimpson, 1857a: 86 View in CoL . — Stimpson 1860: 90, pl. 1, fig. 8.

Pagurus samuelis View in CoL . — Holmes 1900:144. — Rathbun 1904: 160, pl. 5, fig. 7. — Schmitt 1921: 139, pl. 16, figs. 2, 3. — Johnson & Snook 1927: 334, figs. 281, 284a. — McLaughlin 1974: 166, figs. 41, 42; 1976: 24. — Haig & Abbott 1980: 584, fig. 24.10. — Hart 1982: 132, fig. 48. — Ricketts et al. 1985: 37, fig. 22. — Jensen 1995: 65, fig. 120. — Lemaitre & Castaño 2004: 79. — Kuris et al. 2007: 649, pl. 326 F.

Diagnosis. Rostrum triangular and low, longer than lateral projections of carapace. Eyestalk stout, cornea not dilated; ocular scale pointed. Major cheliped shorter than pereopods 2, 3; carpus, hand with granules, lateral margins beaded; fingers broad. Minor cheliped barely longer than carpus of major cheliped, ventral margin of merus with strong teeth; carpus, chela with granules. Pereopods 2, 3 stout, dorsal margins with stiff setae, dactyls stout, curved; propodus, dactyl of left pereopod 3 with spines, granules ventrally. Telson asymmetrical proximal to left lateral groove, terminal margin with very shallow concavity, teeth. Uropods asymmetrical. Carapace length to 19 mm.

Color in life. Greenish brown to olive with red granules. Fingers of chelae with orange apices. Pereopods 2, 3 with prominent blue band in adult, bands of blue and white in juvenile. Antennal flagellum red, carapace with white stripes. Crabs close to molting may be colored blue. Hart (1982) gave a more detailed description of the living color.

Habitat and depth. Rocks, tide pools and jetties, high intertidal zone.

Range. Nootka Sound, British Columbia to Point Eugenia, Baja California, Mexico. Type locality Tomales Bay , California. Reports from Japan and Russia should be referred to a sibling species, Pagurus geminus McLaughlin, 1976 .

Remarks. This is the best-known intertidal hermit crab of California and Oregon. It is abundant along the outer coastline and just inside the mouths of larger bays and harbors, such as San Francisco Bay and Los Angeles Harbor. It usually inhabits shells of Tegula spp. Slipper shells ( Calyptraeidae ) may live inside the aperture of the shell or on top of it.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Paguridae

Genus

Pagurus

Loc

Pagurus samuelis (Stimpson, 1857)

Wicksten, Mary K. 2012
2012
Loc

Pagurus samuelis

Kuris, A. M. & Sadeghian, P. & Carlton, J. T. 2007: 649
Lemaitre, R. & Castano, C. 2004: 79
Jensen, G. C. 1995: 65
Ricketts, E. F. & Calvin, J. & Hedgpeth, J. W. & Phillips, D. W. 1985: 37
Hart, J. F. L. 1982: 132
Haig, J. & Abbott, D. 1980: 584
McLaughlin, P. A. 1974: 166
Johnson, M. E. & Snook, H. J. 1927: 334
Schmitt, W. L. 1921: 139
Rathbun, M. J. 1904: 160
Holmes, S. J. 1900: 144
1900
Loc

Eupagurus samuelis

Stimpson, W. 1857: 86
1857
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