Pinnixa weymouthi Rathbun, 1910

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 258

publication ID	11755334
DOI	https://doi.org/10.5281/zenodo.5255372
persistent identifier	https://treatment.plazi.org/id/C5657B52-FE9D-B212-44D1-FF5ECD050845
treatment provided by	Felipe (2021-08-24 08:22:12, last updated by Plazi 2023-11-04 15:45:02)
scientific name	Pinnixa weymouthi Rathbun, 1910
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Pinnixa weymouthi Rathbun, 1910 View in CoL

( Fig. 59D, E)

Pinnixa californiensis Weymouth, 1910: 56 View in CoL (part, see Rathbun 1917).

Pinnixa weymouthi Rathbun, 1917: 166 View in CoL , pl. 36, figs. 9,10, text fig. 104. — Schmitt 1921: 266, pl. 43, figs. 9, 10. — Schmitt et al. 1973: 124. — Garth & Abbott 1980: 618, fig. 25.40. — Zmarzly 1992: 710, fig. 17. — Campos-Gonzalez 2007: 646, pl. 323 C.

Diagnosis. Carapace smooth, sides subtruncate, anterolateral angels prominent; front advanced but deflexed, weakly bilobed; transverse depression in gastric region. Palm of chela with short coarse setae, scattered granules. Dactyl setose dorsally, longer than fixed finger, with small triangular tooth toward proximal end, row of small teeth near apex of dactyl. Fixed finger with triangular tooth at middle, small teeth opposite those of dactyl. Fingers with small gape proximally when closed. Pereopods 2–5 fringed with setae, with nearly straight dactyls.Ventral margin of propodus of pereopod 3 with 6 spines, that of pereopod 4, 5 with 4 spines. Pereopod 4 longest, thickest. Dactyl of pereopod 5 extending to carpus of third leg. Male carapace length 3.3 mm, female not reported.

Color in life. Yellowish white; see color photograph by Garth & Abbott (1980: fig. 25.40).

Habitat and depth. In polychaete tubes, low intertidal zone to 10 m.

Range. Monterey and Pacific Grove, California. Type locality Monterey Bay , California .

Remarks. Weymouth (1910) did not seem to know that Rathbun (19893) had used the name Pinnixa californiensis . That name now is considered to be a junior synonym of Pinnixa occidentalis . Garth & Abbott (1980) gave the only figure of this species that was based on a specimen other than the type material.

References

Campos-Gonzalez, E. (2007) Key to Pinnotheridae. In: Carlton, J. T. (Ed.) The Light and Smith Manual: Intertidal Invertebrates from Central California to Oregon. University of California Press, Berkeley, 4 th ed., 643 - 646.

Garth, J. S. & Abbott, D. (1980) Brachyura: the true crabs. In: Morris, D., Abbott, D. & Haderlie, E. (Eds). Intertidal Invertebrates of California. Stanford University Press, Stanford, California, pp. 594 - 630.

Rathbun, M. J. (1910) The stalk-eyed Crustacea of Peru and the adjacent coast. Proceedings of the United States National Museum, 38, 531 - 620.

Rathbun, M. J. (1917) The grapsoid crabs of America. Bulletin of the United States National Museum, 97, 1 - 445.

Schmitt, W. L. (1921) The marine decapod Crustacea of California. University of California Publications in Zoology, 23, 1 - 470.

Schmitt, W. L., McCain, J. C., & Davidson, E. D. (1973) Crustaceorum Catalogus. Part 3. Decapoda I, Brachyura 1. Fam. Pinnotheridae. Dr, W. Junk B. V., The Hague, the Netherlands, 160 pp.

Weymouth, F. W. (1910) Synopsis of the true crabs (Brachyura) of Monterey Bay, California. Leland Stanford Junior University Publications, University series 4, 1 - 64.

Zmarzly, D. (1992) Taxonomic review of pea crabs in the genus Pinnixa (Decapoda: Brachyura: Pinnotheridae) occurring on the California shelf, with descriptions of two new species. Journal of Crustacean Biology, 12, 677 - 713.