SPECIES OF MATUTA. 
67 
smooth and glabrous. Dorsal tubercles distinctly marked, 
each capped by a series of granulations. Lateral marginal 
spines acute, of moderate length and directed slightly forward. 
Antero-lateral border with about five smaU projections, fol- 
lowed by three large and prominent (especially the first and 
third) tubercles, in front of the lateral spines. Postero- 
lateral border with a raised finely beaded line, but without 
any trace of a postero-lateral tubercle. Front distinctly 
emarginate, the lobes rounded. Hand granidated externally, 
the upper border with three subequal, broadly conical, spines, 
below these, and on the outer surface, two rows of irregularly 
rounded tubercles. The external ridge in the male, with five 
granulated and pyramidal elevations, of which the second 
is large and conical, and the fourth is slightly larger than 
the third. Lower surface of the hand distinctly granulated, 
with two rows of tuberciilar processes (including that on the 
free border), separated by a shallow groove which is con- 
tinued on to the outer surface of the immobile finger. The 
hand of the female similar to that of the male. Outer 
surface of the mobile finger, smooth and rounded in both 
sexes. 
The markings on the carapace consist of minute reddish- 
brown spots — which with the aid of a lens may be seen in 
many cases to form incomplete rings — arranged so as to 
surround clear, somewhat circular, patches. In all the speci- 
mens examined, there is a light-coloured oval patch on the 
gastric region, between the two anterior dorsal tubercles. 
Length of carapace of a male, 25 millim. 
Breadth of carapace of the same (in front of the lateral 
spines), 25"3 millim. 
Remarks. — This species belongs to the second section of 
the genus, in which the hand of the male is armed with a 
ridge of tubercles or spines, on the outer surface and parallel 
to the lower border, and in which the mobile finger is smooth 
or but faintly striated externally. Its two nearest allies are 
