Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371
Author
Wicksten, Mary K.
text
Zootaxa
2012
2012-07-04
3371
1
307
journal article
11755334
Pachycheles pubescens
Holmes, 1900
(
Fig. 36C
, Pl. 7F)
Pachycheles pubescens
Holmes, 1900: 110
. —
Rathbun 1904: 168
. —
Schmitt 1921: 117
, pl. 33, fig. 4; fig. 112. —
Johnson & Snook 1927: 350
. —
Haig 1960: 162
, pl. 34, fig. 3. —
Haig
et al
. 1970: 23
. —
Gonor & Gonor 1973: 225
, figs. 2–5. —
Haig & Abbott 1980: 589
, fig. 24.19. —
Hart 1982: 102
, fig. 35. —
Ricketts
et al
. 1985
: fig. 31 (larval stages). —
Jensen 1995: 74
, fig. 148. —
Kuris
et al
. 2007: 648
, pl. 326 C.
Diagnosis.
Front trilobate in frontal view, with small tuft of setae. Carapace slightly broader than long, strongly convex from front to back, plicate on posterolateral regions, punctate elsewhere. Chelipeds unequal. Merus of chelipeds with flattened granules, anterior margin with strongly projecting subtriangular lobe. Carpus with broad lobe on anterior margin, cut into 3 or 4 uneven, serrate teeth, lobe, remainder of carpus covered with granules. Entire surface of chelipeds thickly covered with short plumose setae. Fingers slightly gaping
in major
cheliped; gape thickly covered with short setae. Pereopods 2–4 with fringes of plumose setae. Telson with seven plates. Carapace length to
18 mm
.
Color in life.
Carapace white, dappled with brown, gray, purple; may have blue, tan comma-shaped mark on each branchial region. Chelipeds covered by mud-colored setae. Pereopods 2–4 with merus blue, brown, propodus and dactyl with distal white bands (
Hart 1982
).
Habitat and depth.
Rocky coasts, usually intertidal but as deep as
55 m
.
Range.
Queen Charlotte Is.
,
British Columbia
to
Thurloe Head
,
Baja California
,
Mexico
.
Type
localities
Drake's Bay
,
Farallon Is.
and
Humboldt County
, California
.