Upogebia macginitieorum Williams, 1986

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 140

Upogebia macginitieorum Williams, 1986

( Fig. 32J–M)

Upogebia macginitieorum Williams 1986: 30 , fig. 11. — Campos & de Campos 1989: 176. — Sakai 2006: 74. — Campos- Gonzalez 2007: 38. — Campos-Gonzalez et al. 2009: 1249, fig. 1a,b.

Diagnosis. Rostrum triangular, straight, longer than eyestalk, with pair short subapical teeth followed on each side by 4 small conical teeth; dorsal teeth near midlength continuing with teeth, tubercles over anterior dorsal part of carapace. Two divergent spiny ridges extending from rostrum to posterior half of carapace. Gastric region posteriorly smooth, cervical groove deep, continuous, lateral groove (thalassinidean line) continuing to posterior margin of carapace. Postocular spine obsolescent or absent. Antennular peduncle shorter than antennal peduncle. Third maxilliped with epipod. Chelipeds nearly equal, setose. Ischium with 1 spine, merus with spinules on inferior margin, carpus bearing sharp teeth along posterior margin. Palm of chela broad, fixed finger with 1 large tooth on cutting edge, dactyl curved, overlapping fixed finger. Pereopod 2 very stout, dactyl blunt, not chelate, merus without medioventral tooth. Pereopods 3–5 decreasing in size, setose, with simple dactyls. Abdomen smooth, pleura narrow, pubescent. Telson rectangular, with median indentation, transverse anterior ridge, low lateral ridges. Uropods with tooth on protopod, exopod with 3 dorsal ridges, without transverse suture; endopod with 1 ridge. First pleopod absent in male, biramous in female, other pleopods biramous. Male carapace length 20.7 mm, female carapace length 22.1.

Color in life. Dull grayish to bluish, appendages with whitish to yellow tinge, tail fan with yellow to orange edge.

Habitat and depth. Clay banks, high intertidal zone.

Range. Santa Catalina I. and Newport Bay to Tortugas Bay, Baja California, Mexico. Type locality Tijuana Slough, California .

Remarks. This species has been confused with U. pugettensis in older literature.