*s RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN. 179 
As de Man already observed, this subspecies is distinguished by the 
number and the disposition of the tubercles on the upper border of the 
movable finger, as these tubercles are more numerous and more crowded 
than in typical specimens. 
83. Sesarma D obesa Dana. 
1851. ue obesum Dana. Proc. Ac. Nat. Se. Philadelphia, 1851, p. 
250 — Balabac Strait (N. Borneo). 
1852. Sesarma obesum Dana. U. S. Expl. en Crust., p. 356, pl. 22 
| f. 10 — same locality. | 
1887. Sesarma obesa de Man. Zool. Jahrb. Sint Bd. 2 p. 643 —- no 
new locality. 
84. Sesarma (Holometopus) obtusifrons Dana. 
1851. Sesarma obtusifrons Dana. Proc. Ac. Nat. Se. Philadelphia, 1851, 
p. 250 — Sandwich Isles. 
1852. Sesarma obtusifrons Dana. U. S. Expl. Exp., Crust., p. 355, pl. 
22 f. 9 — same locality. 
1887. Sesarma obtusifrons de Man. Zool. Jahrb. Syst., Bd. 2 p. 644 — 
no new locality. 
1895—98. Sesarma (Sesarma) obtusifrons de Man. Zool. Jahrb. Syst., Bd. 
mop. tot. Bd. 10, pl. 29. f.31 — Atjeh. 
1907. Sesarma (Holometopus) obtusifrons Rathbun. Mem. Mus. comp. 
Zool. Harvard Coll., v. 35 n°. 2 p. 35 — Niue. 
85. Sesarma (Holometopus) occidentalis Smith. 
1870. Sesarma occidentalis Smith. Transact. Connecticut Ac., v. 2 p. 158 
— Acajutla (west coast of Central America). 
1897. Sesarma (Holometopus) occidentalis Rathbun. Proc. Biol. Soc. Was- 
hington, v. 11 p. 90 — no locality. 
1901. Sesarma (Holometopus) occidentalis Nobili. Boll. Mus. Torino, t. 16 
n°. 415 p. 42 — Tumaco. 
86. Sesarma (Sesarma s.s.) ocypoda Nobili. 
1899. Sesarma ocypoda Nobili. Ann. mus. civ. stor. nat. Genova, (2) t. 
20 p. 513 — Benkoelen (Sumatra). 
1902. Sesarma (Sesarma) ocypoda de Man. Abhandl. Senckenb. Gesellsch., 
Bd. 25 Heft 3 p. 525, pl. 19 f. 10 — description of type-specimens. 
86a. Sesarma (Sesarma s.s.) ocypoda gracillima de Man. 
1902. Sesarma (Sesarma) ocypoda var. gracillima de Man. Abhandl. Senc- 
kenb. Gesellsch., Bd. 25 Heft 3. p. 522, pep 19 f. 9 — Baram 
River (Borneo). — 
