’s RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN. 207 
are referable to the present species, as the upper border of the mobile 
finger is described as being “coarsely crenulate’, whereas no mention is 
made of the characteristic 9—10 tubercles, disposed at regular distances 
in a longitudinal groove on this finger, as denoted by Hilgendorf and 
de Man. 
116. Sesarma (Sesarma s.s.) thelxinoë de Man. 
1908. Sesarma thelxinoë de Man. Rec. Ind. Mus., v. 2 prt. 2 n°. 22 p. 
181, pl. 11 — Port Blair (Andamans). 
117. Sesarma (Sesarma s.s.) tiomanensis Rathbun. 
1913. Sesarma tiomanense Rathbun. Proc. U. 8. Nat. Mus., v. 46 p. 355, 
‚pl. 31 f. 1—3 — Pulo Tioman (Malay Peninsula). 
118. Sesarma (Sesarma s.s.) trapezoidea Guérin. 
1837. Sesarma trapezoidea (Guérin) H. Milne-Edwards. Hist. nat. Crust., 
t. 2 p. 74 — no locality. | | 
1853. Sesarma trapezoidea H. Milne-Edwards. Ann. Se. nat., (8) t. 20 
p. 186 — locality unknown. | 
1868. Sesarma oblonga v. Martens. Monatsbers Ak. Wiss. Berlin, 1868, 
p. 611 — Philippines. 
1887. Sesarma trapezoidea de Man. Zool. Jahrb. Syst., Bd. 2 p. 654 and 
678 — description of type-specimen of Milne-Edwards and of that 
of v. Martens. 
1889. Sesarma trapezoidea de Man. Zool. Jahrb. Syst., Bd. 4 p. 426, pl. 
9 f. 7 — Fiji Islands. 
1889. Sesarma trapezoidea var. longitarsis de Man. Zool. Jahrb. Syst., 
Bd. 4 p, 427, pl. 10 f. 8 — Fiji Islands. 
1890. Sesarma trapezoidea de Man. Notes Leyden Museum, v. 12 p. 96 
— Amboyna and Pacific. 
1894. Sesarma trapezoidea Ortmann. Zool. Jahrb. Syst., Bd. 7 p. 719 — 
Queensland. 
1899. Sesarma (Sesarma) trapezoidea Nobili. Ann. mus. civ. stor. nat. 
Genova, (2) t. 20 p. 510 — Mentawei Islands. 
1902. Sesarma trapezoidea Schenkel. Verhandl. naturforsch. Gesellsch. 
Basel, Bd. 13 p. 545 — Lolak River (Celebes). 
1902. Sesarma (Sesarma) trapezoidea de Man. Abhandl. Senckenb. Ge- 
sellsch., Bd. 25 Heft 3 p. 532 ') — Halmaheira. 
1907. Sesarma (Sesarma) trapezoideum Rathbun. Mem. Mus. comp. Zool. 
Harvard Coll., vo 35 1 2p. 33. Tahiti. 
1) In this paper de Man recognized his subspecies Zongitarsis to be only an individual variation. 
