. Bulletin - United States National Museum. Science. THE SPIDER CRABS OF AMERICA 161 Measurements.âFemale, holotype, length of carapace inch ( mm.), width between tips of antero-lateral teeth inch ( mm.). (Stimpson.) Range.âKnoAvn only from the type-locality. Cape St. Lucas, Lower California, Mexico. The Peruvian specimen formerly supposed to be a variant of Stimpson's species is now considered a distinct species. EUPLEURODON PERUVIANUS Rathbun Plate 49, figs. 5 and 6 Ewpleurodon trifurcatus Rathbun, Proc. U. S. Nat. Mus., vol. 38, 1910, pp. 535 and 572 (part), pi. 49, fig. 5.
. Bulletin - United States National Museum. Science. THE SPIDER CRABS OF AMERICA 161 Measurements.âFemale, holotype, length of carapace inch ( mm.), width between tips of antero-lateral teeth inch ( mm.). (Stimpson.) Range.âKnoAvn only from the type-locality. Cape St. Lucas, Lower California, Mexico. The Peruvian specimen formerly supposed to be a variant of Stimpson's species is now considered a distinct species. EUPLEURODON PERUVIANUS Rathbun Plate 49, figs. 5 and 6 Ewpleurodon trifurcatus Rathbun, Proc. U. S. Nat. Mus., vol. 38, 1910, pp. 535 and 572 (part), pi. 49, fig. 5. Not E. trifurcatus Stimpson. Eupleurodon peruvianus Rathbun, Proc. U. S. Nat. Mus., vol. 64, art. 14, 1924, p. 2 (tj'pe-locality, north end of Ferrol Bay (Chimbote), Peru; holotype. Cat. No. 40462, ). Diagnosis.âOrbital arch provided with a preocular tooth. No small tooth on lateral margin between the two large teeth or lobes. ^Description.âCarapace pentagonal; depressions as in trifurcatus. A transverse row of tubercles across the gastric region above the depression, the inner pair larger than the outer pair; a large tubercle near the posterolateral angle; a smaller one in the branchio-cardiac furrow; a still smaller tubercle on the meso- gastric and the intestinal regions, and three on the cardiac region forming a triangle point- ing backward. Teeth and prominences of carapace setose. Lateral teeth or lobes re- curved,-blunt at tips; width of carapace at middle of antero-lateral lobes greater than at tip of lobes and appreciably less than width between tips of postero-lateral lobes. Ros- trum a third as long as the postfrontal part of the carapace and one-half as broad as long, fig. peruvi- lateral margins raised, extremity incised for anus, female holotype, maxil- ^ 1 c â 1 1 !⢠LIPED. The CARAPACE IS 10 mm, about one-iourth ol its length to lorm two long rounded lobes. Eyestalks flattened. The antennae reach nearly to end of rostrum. The ante
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