’s RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN. 213 
1894. Metasesarma rousseauxi Ortmann. Zool. Jahrb. Syst., Bd. 7 p. 717 
— Samoah, Tahiti and Philippines. 
1895—98. Sesarma (Metasesarma) rousseauxi de Man. Zool. Jahrb. Syst, 
Bd. 9 p..138, Bd. 10 pl. 29 f. 28 (ext. maxilliped) — Atjeh and 
Penang. 
1899. Sesarma (Metasesarma) rousseauxi Nobili. Ann. mus. civ. stor. nat. 
Genova, (2) t. 20 p. 506 — Ceylon. 
1900. Metasesarma rousseauxii Alcock. Journ. As. Soc. Bengal, v. 69 
prt. 2 p. 427 — Andamans, Nicobars, Mergui Arch., Ganges Delta, 
Madras and Minnikoy (Laccadives). 
1902. Sesarma (Metasesarma) rousseauxit de Man. Abhandl. Senckenb. 
| Gesellsch., Bd. 25 Heft 3 p. 506 — Halmaheira. 
1905. Metasesarma rousseauxi Nobili. Ann. Mus. Hung., v. 3 p. 501 — 
Berlinhafen (German New Guinea). 
1910. Metasesarma rousseauxi Rathbun. Bull. Mus. comp. Zool. Harvard 
Coll., v. 52 p. 308 — Halmaheira, Waigeu and Manokwari 
(Netherland’s New Guinea). 
Specimens in the Museum: 
2 o', 2 ©, Atjeh, Storm coll. (examined by de Man 1895). 
6 SG, 3 ©, Amboina, Ludeking coll. 1863. 
to, 3 0, Bezian (?)-1831. 
1 Q, Aroe Islands, v. Rosenberg coll. 
1 9, New Guinea. 
1 {, 3 ©, Poeloe Weh (north of Sumatra), Buitendijk coll. Dec. 1910. 
3. Metasesarma trapezium (Dana). 
1852. Sesarma trapezium Dana. U. 8. Expl. Exp., Crust., p. 354, pl. 22 
f. 8 — Sandwich Islands. 
1861. Metasesarma trapezium Stimpson. Proc. Ac. Nat. Sc. Philadelphia, 
1861, p. 373 — description of type-specimens. 
C. Sarmatium Dana 1851 
— Metagrapsus H. Milne-Edwards 1853. 
1. Sarmatium birói Nobili. 
1905. Sarmatium birói Nobili. Ann. Mus. oo v. 3 p. 498 — Ste- 
phansort (German New Guinea). 
This species of which only the © is known is nearest related to S. 
punctatum A. Milne-Edwards, but, according to Nobili, the following points 
of difference are to be observed. 
