


172 ZOOLOGISCHE MEDEDEELINGEN — DEEL It. 

1905. Sesarma meinerti Lenz. Abhandl. Senckenb. Gesellsch., Bd. 27 
Heft 4 p. 372. — Zanzibar. 
1910. Sesarma tetragonum Stebbing. 8. A. Crust., Prt. 5 p. 321 — South 
Africa. 
1913. Sesarma meinerti Me. Culloch. Rec. Austral. Mus., v. 9 n°. 3 p. 
322 — Cooktown (EK. Australia). 
Specimens in the Museum: 
¢, Celebes. 
Q, Nossi Bé, Pollen & vy. Dam coll. (examined by Hoffmann). 
co, Soela Besi. 
Seon oO. Pacitic: 
o', Java. 
oe Gl a | 
In the shape of the carapace and that of the lateral teeth this species, 
like Ses. smitht H. Milne-Edwards, has much in common with the genus . 
Sarmatium. 
De Man (1895, p. 167) called attention to the considerable variations 
in the shape of the carapace, the greatest breadth of which is propor- 
tionally much larger in the 9 than in the o’, and in the former sex 
the posterior margin of the carapace may exceed the breadth of the 
front, whereas in the © the reverse in the case. 
Among the dried specimens of Ses. taeniolata White in the Museum 
I found a large ¢' of the present species (from Java), but the carapace of this 
specimen presents such a curious resemblance to that of Ses. tweniolata, that, 
were it not for the characteristic features of the chelipeds and walking 
legs and the peculiar shape of the abdomen, it might easily be mistaken 
for the latter species. The carapace of this specimen is only feebly cur- 
ved in a longitudinal direction, nearly flattened; all the tufts of 
hair, though they may have been present, are now entirely rubbed off, 
the front is vertically deflexed, the shape of the postfrontal lobes is en- 
tirely the same as in Ses. taeniolata, the epibranchial teeth are acute, of 
the same shape as the outer orbital angles, and reach exactly as far 
outward; behind the epibranchial teeth the lateral mar- 
gins of the carapace converge distally. On the other hand, the 
chelipeds, the little enlarged meropodites of the walking legs, and the 
shape of the abdomen (the penultimate segment of which is only slightly 
broader at the base than long '), contrary to what is the usual case in 
this genus) entirely agree with the descriptions of A. Milne-Edwards, de 
Man, Alcock and others. 
1) Pfeffer found the same relation in his specimens, but Lenz appears to refute this statement. 
