I09 



Metasesarma H. Milne-Edwards. 

 1S53. Metasesarma H. Milne-Edwards. Arch. Mus. Paris, t. 7, p. 158. 



A detailed account of all the species of this genus and of Sesarma, Sarmatium and 

 Clistocoeloina has been given by me in "Zool. Med. j\Ius. Leiden, v. 3, 191 7, p. 127 — 260, so 

 that a rapid glance over the species belonging to the said genera may be sufficient and no 

 key is needed. 



1. Metasesarma rousseauxi H. Milne-Edwards. 



Literature: Tesch, Zool. Med. Mus. Leiden, v. 3, 1917, p. 212. 



Stat. 19. Labuan Tring, west coast of Lombok. i 9 ^^^^ ^ggs and 3 very young (^ . 

 Stat. 61 a. Adonara Island, east of Flores. i O with eggs and a cT juv. 



The 9 apparently attain maturity at very different age or they will pass through several 

 breeding periods: the 9 from Stat. 19 has a length of carapace of about 15 mm., that from 

 Stat. 61^ is only 10 mm. long. The carapace is yellowish, with some scarlet-red markings and 

 the front darkish-red ; the chelae are whitish. 



2. Metasesarma aubryi A. Milne-Edwards. 



Literature: Tesch, Zool. Med. Mus. Leiden, v. 3, 1917, p. 211. 



Stat. 133. Lirung, Talaut Islands. 2 cT, i 9 with eggs. 



Stat. 180. Pulu Kelang, between Ceram and Buru, i 9 "ot ad., in river. 



The carapace of the adult cf is of a beautiful violet colour and the chelae are brightly 

 red, with the fing-ers whitish. 



't>^ 



Sesarma Say. 



1 8 17. Sesarma Say. Journ. Ac. Nat. Sc. Philadelphia, 18 17, p. 442. 



This genus is distributed through all tropical seas and contains more species than all the 

 remaining genera of Grapsidae taken together. Four subgenera are accepted : HolometopHS 

 H. Milne-Edwards, Sesarma Say, Parasesarma de Man and Chirotnantes Gistel (= Perise- 

 sarma de Man). 



I. Sesarma (Holometopus) elongata A. Milne-Edwards. PI. 5, Fig. 2. 



Literature: Tesch, Zool. Med. Mus. Leiden, v. 3, 1917, p. 149. 



Stat. 169. Atjatuning, west coast of New Guinea, i cf juv., on reef. 

 Stat. 174. Bay of Waru, north-east coast of Ceram. I O ad., on reef. 



The apparently very rare species i^ at once distinguished by the remarkably foliaceous 

 meropodites of the walking legs, by the very short dactyli and by the row of transverse tuber- 

 cles on the back of the movable finger of the chela. De M.\n ^) has examined the original 



l) Notes Leiden Mus., v. 14, 1S92, p. 256. 



109 



