’s RIKS MU SEUM V AN NATUURLIJKE HISTORIE — — ~ LEIDEN. 185 

projecting distal end of the border. At the inner side of this row some 
subparallel short rows of granules run forward in an_ obliquely-longitu- 
dinal direction. In Ses. taeniolata there is also a continuous Peni ae 
row near the upper border of the palm, but this row is composed o 
numerous teeth, placed closely together, so that the whole is comb- ie 
pectinated and a the same structure as the crests which characterize the 
subgenera Parasesarma and Chiromantes. The inner surface of the palm 
in Ses. palawanensis shows some rather sharp granules, continued partly 
on to the inner surface of the immobile finger; parallel with the base 
of the movable finger there is a straight, continuous row of 6—7 gra- 
nules, which however do not form a projecting crest. The same trans- 
verse row occurs in the Q of Ses. taeniolata, but in the of this species 
there is a very marked, much projecting crest at the inner surface of 
the palm, which crest is somewhat excavated anteriorly and denticulate 
along its free margin. The fingers of Ses. palawanensis are narrowly 
gaping; the movable finger is slightly curved, and inner and outer sur- 
face are, like those of the immobile finger, perfectly smooth and shining, 
with a few small pits. The back is milled transversely (f. 2a) by 
numerous small grooves, the elevations, separated by these grooves, are 
horny-coloured and very much resemble those of Ses. taeniolata, but they 
are comparatively much smaller, fewer in number (I counted about 
34 transverse tubercles in my specimen of Ses. palawanensis, whereas 
Miss Rathbun observed about 25 of them; in Ses. taeniolata, however, 
these tubercles number more than 40) and they are only developed 
on the proximal two-thirds of the finger, leaving the distal 
third free; in Ses. taeniolata the whole upper border of the finger is 
milled up to the tip, in the Q as well as in the ©. 
The walking legs, with their very broad meropodites, are similar to 
those of Ses. taeniolata, the hairy covering of the propodites and the 
dactyli is also the same '). 
Dimensions of the single specimen (9): 
Distance between external orbital angles. . . . . . . . 33.— mm. 
5 4 epibranchial teeth < .°9. 9... Sra Aly aera fy (a) ak 
Breadth of carapace above base of second pair of Salstie legs 29.— , 
encthy oie carapace tnmeuser Noman Bilics te. * - Seager OO. COU. 
OSteriOusmargin Ol iCana pace wvemecne? fet ts = | 2) ay kare h en ee 
ISTREORIO OCB ERO le, Aye EU nWicc | ict SACRO con uct 8 \prsugl lo — 
1) In the specimen here figured the last leg on the right side seems to be regenerated, as 
it is more slender in its mero-, carpo- and propodite than that of the left side. 
