190 ZOOLOGISCHE MEDEDEELINGEN — DEEL III. 

Specimens in the Museum: 
1, 19, Japan, Burger coll. (typ. affinis of de Haan) | 
1 o, Bezoeki (Java), Semmelink coll. 1865. mentioned 
1 (affinis), Padang. bij de Man 
1 ©, Macassar, Piller coll. | (1890). 
1S (affinis), Japan, v. Siebold. 
1, 19, Bay of Batavia, Buitendijk coll. 1906. 
De Man, who had occasion to compare typical specimens of Ses. wn- 
gulata and of Ses. affinis (1888, p. 169) declared them to be identical 
with Ses. quadrata; he regards Ses. aspera as ,probably a mere local 
variety of it”. There is in the present species a rather large variability 
in the number of transverse tubercles on the back of the movable fin- 
ger: the typical Ses. quadrata has 11—14 tubercles, Ses. aspera even 17 
tubercles, whereas there are only 7 in Ses. affinis and 8 in Ses. ungulata 
(de Man, 1. c. p. 170). 
95. Sesarma (Sesarma s.s.) polita de Man. 

1887. Sesarma polita de Man. Zool. Jahrb. Syst., Bd. 2 p. 654 
Archipelago and western part of Indian Archipelago. 
1888. Sesarma polita de Man. Journ. Linn. Soe. London, v. 22 p. 189, 
pl. 18 f. 7—9 — Sullivan Island (Mergui Arch.). 
1900. Sesarma politum Alcock. Journ. As. Soc. Bengal, v. 69 prt. 2 
p- 422 — same locality. 
Mergui 
Specimens in the Museum: 
1 o’, Mergui Arch. (co-type of de Man). 
96. Sesarma (Sesarma s.s.) pontianacensis de Man. 
1895—98. Sesarma (Episesarma) pontianacensis de Man. Zool. Jahrb. Syst., 
Bd. 9 p. 178, Bd. 10, pl. 30 f. 32 — Pontianak (West-Borneo). 
97. Sesarma (Holometopus) recta Randall. 
1839. Sesarma recta Randall. Journ. Ac. Nat. Se. Philadelphia, vy. 8 
p- 123 — Surinam. 
1869. Sesarma miillerii A. Milne-Edwards. Nouv. Arch. Mus. Paris, Bull. 
p- 29 — Desterro (Brazil). 
1897. Sesarma recta Ortmann. Zool. Jahrb. Syst., Bd. 10 p. 331, pl. 17 
f. 8 — Surinam and Brazil (description of typical specimen of 
Randall). 
nec Sesarma miilleri Miers. Brachyura Rep. ,,Challenger’, 1886, 
p. 270, pl. 21 f. 3 — Bahia (= Ses. rubripes Rathbun). 
