30 THE BRACHYURA. ° 
lines fringed anteriorly by hairs lying flat on the carapace, and averaging 
half the width of the space between ridges. Lateral borders parallel and 
entire. 
Front a little over half width of carapace, steeply inclined, its free edge 
slightly sinuous and as a whole convex. Middle pair of suprafrontal lobes 
very prominent and elongate, separated from each other and from the 
lateral lobes by broad, deep, hairy furrows. 
Chelipeds of ¢ unequal, much stouter than legs, 1} x as long as carapace, 
and roughened by striae fringed with hair, those on the arm smooth, those 
on the wrist granulated, short and curved; those on the outer face of the 
palm coarsely granulate and longitudinal, except near the top, where they 
are broken into short lines or tubercles. Inner border of ischium and merus 
denticulate; inner tooth of wrist stout, sharp-pointed. Fingers narrowly 
gaping, each with a tooth on the basal half much larger than the other teeth ; 
that on the dactylus is proximal to that on the pollex. 
Legs smoothly striated, the striae fringed; those on the merus joints 
transverse, those on the carpal and propodal joints longitudinal. Last three 
joints bristly and sparsely long-hairy. Merus with a subterminal spine on 
the anterior margin, and 3 or 4 spines at the distal end of the posterior 
margin. Second leg longest, twice as long as carapace. 
Dimensions : — 3, length 18 mm., width 19.5 mm. 
Type locality : —Fakarava Id., Paumotus; outer reef; Oct. 12, 1899; 12 
(Cat. No. 32,844, U.S. N. M.). 
This species is near P. plicatus (Milne Edwards),' but is distinguished at 
once by its parallel sides, coarse striation, and great hairiness. 
Pachygrapsus minutus A. Milne Edwards. 
Pachygrapsus minutus Rathbun, Bull. U.S. Fish Comm. for 1903 (1906) part 3, 840. 
Ponape, Caroline Ids.; reef; Feb. 11, 12, 1900; 6 ¢,1¢9. 
Pachygrapsus longipes Rathbun. 
Pachygrapsus longipes Rathbun, Bull. U.S. Fish Comm. for 1903 (1906) part 3, 840, 
pl. 8, fig. 7. 
Fakarava Id., Paumotus; outer reef; Oct. 12, 1899; 1¢ 
Kusaie, Caroline Ids.; reef; Feb. 8, 1900; 341 2. 
Ponane Caroline Ids.; reef; Feb. 11, 12, 1900; 2 9 
1 Hist. Nat. Crust., 1837, 2, 89. 
