Pinnixa tomentosa Lockington, 1877

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 256

Pinnixa tomentosa Lockington, 1877

( Fig. 59B, C)

Pinnixa tomentosa Lockington, 1877d: 156 . — Rathbun 1917: 141, pl. 30, fig. 8, text figs. 85, 86. — Schmitt 1921: 258, text fig. 153. — Schmitt et al. 1973: 121. — Scanland & Hopkins 1978: 636, figs. 1A–C, 2A–C. — Garth & Abbott 1980: 617. — Zmarzly 1992: 706, fig. 15. — Campos-Gonzalez 2007: 645.

Diagnosis. Carapace 1.7–2.5 times as long as wide, rounded, sloping toward margins; shallow depression behind gastric region, cardiac region swollen. Transverse depression behind margin of front; anterolateral margin with granulated line on branchial region. Carapace, pereopods setose. Hand of chela oblong, margins convex. Fingers with hooked apices, each with small tooth near midpoint, not gaping when closed. Pereopod 2 slender, short; pereopod 3 nearly as long as pereopod 4 but less stout, dactyls of pereopods 2, 3 slender, slightly curved. Dactyls of pereopods 4, 5 stout, short, not hooked. Pereopod 4 broad, propodus nearly square, pereopod 5 similar to pereopod 4 but much smaller, reaching to end of merus of pereopod 4. Female carapace length 7.5 mm, male smaller.

Color in life. Carapace mottled brown and cream, appendages light tan ( Scanland & Hopkins 1978).

Habitat and depth. Symbiotic with polychaetes, especially Chaetopterus variopedatus ; intertidal to 21 m.

Range. Monterey, California to Cape San Lucas, Baja California ; in Gulf of California at San Felipe, Point Cholla, and Angeles Bay. Type locality Angeles Bay, Gulf of California . Most records are from southern California .