NO. 2044. NEW PHILIPPINE CRABS— RATHBUN. 79 



look like granules or tubercles, but when they are removed the surface 

 is seen to be glossy and in the main smooth though a little uneven; 

 dactyli shorter than propodi, tapering to a very slender horny tip. 



Terminal segment of abdomen of female inserted up to its middle 

 in the sixth segment. 



S. tectum, in the absence of rugose lines on the postero-lateral por- 

 tions of the carapace, in the shining surface, lack of roughness or 

 granulation, coat of setae and hairs, resembles S. lanatum Alcock,^ 

 but the latter has a considerably wider carapace, with the tufts of 

 hair smaller, more numerous and more uniform. 



SESARMA (HOLOMETOPUS) LIMBENSE, new species. 



Type-locality. — ^Limbe Island, Gulf of Tomini, Celebes; November 

 12, 1909; 1 male (type), 2 females (1 ovigerous). 



Type.— Ca.t. No. 45920, U.S.N.M. 



Dimensions. — ^Male type, length of carapace 6.8 mm., width at 

 antero-lateral angles 7.7 mm., width at postero-lateral angles 7.2 

 mm., width of front 4.4 mm.; ovigerous female, length of carapace 

 11.7 mm., width at antero-lateral angles 12.9 mm., width at postero- 

 lateral angles 12.7 mm., width of front 7 mm. 



Carapace deeply sculptured; not only are the mterregional grooves 

 deep, but the grooves separating the postfrontal lobes are continued 

 halfway to the mesogastric region, and the branchial region shows 

 several areolets along its inner border. Surface punctate and shining, 

 with numerous very short and inconspicuous hairs. The antero- 

 lateral tooth projects forward but not outward. Where the foremost 

 of the oblique ridges joins the side margin, the latter is a little swollen. 

 The front is about 4 times as wide as high, surface concave, sides 

 converging below, lower margin shghtly sinuous, and in front view, 

 arcuate as well; a bunch of coarse granules near the middle of either 

 half. Postfrontal lobes somewhat obHque, outer pair sUghtly nar- 

 rower than inner pair. 



Arm without spine above; inner margin with a triangidar tooth 

 denticulated on the edge. Palm rather smooth, sparingly punctate, 

 with fine rugse near the wrist and sparse granules near the top ; upper 

 margin a smgle slightly angled, granulated line ruiming obliquely 

 backward and outward from the distal angle of the palm to the point 

 where it curves down to the articulation of the wrist. Within this 

 margin and forming part of the inner surface, although visible from 

 above, there are 2 or 3 granulated lines, the upper of which is, in the 

 male, parallel to the upper margin; the others are also oblique but 

 not parallel. The upper margin of the finger bears 8 or 9 scalari- 

 f orm tubercles in the male ; in the female the tubercles are low and 

 only 5 or 6 proximal ones are discernible. 



1 Journ. Asiatic Soc. Bengal, vol. 69, 1900, p. 418; Illus. Zool. Investigator, Crust., pt. 10, 1902, pi. 65, 



figs. 4, 4a. 



