Lophopanopeus leucomanus (Lockington, 1877)

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 241

Lophopanopeus leucomanus (Lockington, 1877)

( Fig. 56 C, D)

Xanthodes leucomanus Lockington, 1877a: 32 .

Lophopanopeus heathii Rathbun, 1900: 137 ; 1904: 182, pl. 7, fig. 9. — Weymouth 1910: 51, pl. 12, fig. 38. — Schmitt 1921: 243, pl. 37, fig. 1. — Johnson & Snook 1927: 387, fig. 342.

Lophopanopeus leucomanus . — Rathbun 1904: 182; 1930: 324, pl. 153, figs. 5, 9; pl. 154, fig. 4. — Schmitt 1921: 243, pl. 37, fig. 6, text fig. 145. — Johnson & Snook 1927: 386, fig. 341. — Jensen 1995: 20, fig. 10. — Kuris et al. 2007: 643.

Lophopanopeus leucomanus heathii . — Menzies 1948: 13, pl. 2, figs. 15, 16; pl. 5, fig. 34. — Garth & Abbott 1980: 610. — Ricketts et al. 1985: 169, fig. 137.

Lophopanopeus leucomanus leucomanus . — Menzies 1948: 10, pl. 2, figs. 9-14; pl. 5, fig. 35 (extensive synonymy). — Campos & de Campos 1989: 175.

Diagnosis. Carapace with anterior half irregularly roughened; granulated patch on hepatic region, front with shallow notch, 3 developed anterolateral teeth. Carpus of chelipeds smooth to pitted. Movable finger of major chela with strong basal tooth. Carpus of pereopods 2–5 slightly to strongly bilobed, without pubescence, propodus broad. Male carapace length to 12.2 mm.

Color in life. White, dark red, brown, gray or mottled; pereopods may have different color than carapace; fingers of chelae with dark color not extending back on palm. See Garth & Abbott 1980: figs. 25.25b–25.25f.

Habitat and depth. Among rocks, tide pools, among tube mollusks, intertidal zone to 200 m.

Range. Moss Beach , San Mateo County, California to Cedros I., Baja California, Mexico. Type locality Monterey, California .

Remarks. There are two subspecies of this species. The typical form, L. leucomanus leucomanus , ranges from Carmel to Cedros I.. The carpus of the cheliped bears a network of lines ("reticulating ridges"), which extend to the palm of the chela. The carpus of pereopods 2–5 is bilobed. Lophopanopeus leucomanus heathii ranges from Moss Beach to La Jolla, California. It does not have the reticulating ridges on the carpus, and the carpus of the walking legs is barely bilobed.