Pinnixa tubicola Holmes, 1894

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

Pinnixa tubicola Holmes, 1894

( Fig. 59F, G; Pl. 15C)

Pinnixa tubicola Holmes, 1894: 569 , pl. 20, figs. 17, 18; 1900: 91. — Rathbun 1904: 187; 1917: 165, fig. 103, pl. 36, figs. 5–8. — Weymouth 1910: 57, text fig. 4. — Schmitt 1921: 265, pl. 43, figs. 5–8. — Johnson & Snook 1927: 394. — Schmitt et al. 1973: 122. — Scanland & Hopkins 1978: 636, figs. 1D–F, 2D–F.— Garth & Abbott 1980: 617, fig. 25.39. — Hart 1982: 238, fig. 99. — Ricketts et al. 1985: 82. — Zmarzly 1992: 709, fig. 16. — Jensen 1995: 31, fig. 43. — Campos- Gonzalez 2007: 645, pl. 322 C1.

Diagnosis. Carapace subcylindrical, 2.5 times wide as long in female to twice as wide as long in male, transverse depression behind gastric region, from which carapace curves sharply downward; outer portion of anterolateral margin defined by ridge. Chelipeds small, hand oblong, fingers hooked at apices, inner margins meeting when closed, immovable finger curved upward distally; lower margin of palm convex. Pereopod 2 slender with slender dactyls equal in length to propodi. Pereopod 3 longer, stouter than pereopod 2, with relatively stouter dactyls. Pereopod 4 stout, little longer than pereopod 3, with short, stout dactyls. Pereopod 5 similar to but shorter than third, not exceeding end of merus of pereopod 4. Propodi of pereopods 3, 4 inflated, only slightly longer than wide. Length of carapace 4 mm.

Color in life. Golden brown with spots of bluish gray or white on dorsal surface, lighter, uniform in color on ventral surface ( Schmitt 1921).

Habitat and depth. Sand or mud, symbiotic with polychaetes, often living in male-female pairs; intertidal zone to 57 m.

Range. Prince Rupert, British Columbia to Blanca Bay , Baja California; unverified reports from "Alaska.” Type locality not specified; type material from Trinidad (Humboldt County), Cape Mendocino , and Bodega Bay , California .