*s RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN. 153 
not yet twice as long as broad. Carpo- and propodites are short, and 
covered at anterior and posterior margins with very short hairs, among 
which are placed some longer hairs, but the latter only at the hind 
margins of the propodites. The dactyli are short, with acute tips. 
This species is exceedingly alike Ses. recta Randall of America, and 
I own to be at a loss to indicate any important point of difference 
between the two species. Comparing the specimens at my disposal I 
can only say, that in Ses. eydouxi the inner surface of the palm presents 
only irregularly placed granules, whereas in Ses. recta there is a somewhat 
elevated and rather well-defined group of such granules near the base of 
the dactylus; besides, in the former species the upper (anterior) border 
of the meropodites of the walking legs is only rough, whereas in the 
latter species this border is distinctly and sharply crenulate, up to the 
subdistal tooth. In the shape of the abdomen of the © I have found no 
differences whatever between the two species. | 
Dimensions of Ses. eydouxi (all {): 
2 3 
Distance between external orbital angles . . 31.— 28.— 23.5 mm. 
Breadth of carapace above base of penultimate | 
parol less 7. . hu 12996-12175 , 
_ Length of carapace in ne dia fine PC OTR Oe LR 
BBreadih of front. . . . ee ME een ea 
Length of posterior margin of earapacensn en. EST 1275 P20. 
Horizontal length of chela (palm +immobile finger) 30.— 25.5 18.— , 
Eleishb of palm .:. : . SAE NÉS, TA TO DO 
Length } of meropodite of Henten, pair: 23 20.— 145 , 
Breadth J of legs — 122" 11.5 0775 5, 
Breadth of posterior He penultimate segment 9.— 8.25 6.75 „ 
Length of abdomen 475 4— 35 , 
The dimensions of the largest G' nearly exactly agree with those of 
the type specimen measured by de Man (1892). 
43. Sesarma (Parasesarma) fasciata Lanchester. 
1900. Sesarma fasciata Lanchester. Proc. Zool. Soe. London, 1900, p. 
158, pl. 47 f. 12.— Singapore. 
44, Sesarma (Holometopus) festae Nobili. 
1901. Sesarma (Holometopus) festae Nobili. Boll. Mus. Torino, t. 16 
n°. 415 p. 42 — Tumaco and Esmeraldas (Ecuador). 
