Upogebia pugettensis (Dana, 1852)

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 141

Upogebia pugettensis (Dana, 1852)

( Fig. 33F–J)

Gebia pugettensis Dana, 1852: 19 .

Upogebia pugettensis . — Holmes 1900: 157. — Rathbun 1904: 153. — Schmitt 1921; 115, fig. 77. — Johnson & Snook 1927: 327, fig. 274 (part). — Haig & Abbott 1980: 579, fig. 24.1 (part). — Hart 1982: 52, fig. 12. — Ricketts et al. 1985: 393, fig. 305 (part). — Williams 1986a: 35, fig. 13. — Jensen 1995: 78, fig. 160. — Sakai 2006: 75. — Kuris et al. 2007: 648.

Diagnosis. Rostrum broadly triangular, flanked by shorter frontal process at each side; apex obtuse, length shorter than antennular peduncle; lateral borders with 3–5 conical teeth, short subapical pair remote from apex; 0–2 dorsal teeth near midlength on each side. Row of 11 or 12 teeth on ridge lateral to gastric region of carapace, surface mesial to these rows armed with small tubercles or teeth; anterolateral margin with short ocular tooth, extension of epistome in lateral view bearing 1–3 tiny distal teeth. Shoulder of carapace lateral to cervical groove armed with about 20 tiny teeth, thalassinidean line continuing to posterior margin of carapace. First segment of antennular peduncle with sharp tooth at distoventral end of inner border. Second segment of antennal flagellum with small distoventral tooth, scale small, oval. Chelipeds equal. Ischium with small tooth on lower border, merus with upper margin curved, small spine near carpal end, setae, 5 or 6 small teeth on ventrolateral border, 4 spines on ventromedial border; carpus with lateral longitudinal furrow, strong tooth on mediodistal border, 4–10 small teeth nearby, small tooth on distal margin, larger tooth at mediodistal margin, also small tooth at distoventral corner; palm of chela with setose lines, rows of small teeth, setae, mediodistal sharp spine at base of dactyl; fixed finger directed ventromesially, with 1 conical tooth on cutting edge; dactyl slightly curved, upper surface ridged, bearing rows of setae, lateral surface with row of 6 or 7 blunt tubercles, 2 or 3 smaller tubercles near them, 2 low teeth on cutting edge. Pereopod 2 not chelate, merus with tiny tooth on superior margin, carpus with small distal teeth, fringe on setae along lower margins of segments. Pereopods 3–5 setose, decreasing in size, dactyls with spinules on flexor margins. Abdomen rather broad, pleura usually without ventral teeth. Telson widest at anterior end, with low dorsal carina on each side of median furrow. Uropods slightly exceeding telson, bearing dorsal ribs, minute marginal spines, protopod bearing small tooth. Total lengths 75–112 mm, males smaller than females.

Color in life. Deep olive, brown, deep blue to dirty bluish white. The color may depend on the feeding habits of the individual.

Habitat and depth. Burrows in muddy beaches, mud flats, sloughs or estuaries, intertidal to shallow subtidal zones near shore.

Range. Sawmill Bay, Alaska to Morro Bay , California. Type locality Puget Sound .