1880.] NATURAL SCIENCES OF PHILADELPHIA, 191 



Grapsus thukuJiar Owen. In Beechey's Voyage, Zoology, p. 80, Tl. 



XXIV, f. 3 (1839). 

 Graps>is paniUelus Randall. .Jour. Acad. Nat. Sci., Phila. viii, p. 



127 (1839). 

 Metopograpsus messor, timkuliar, eydouxi et intermedius Edw. Ann. 



Sci. Nat., Ill, XX, p. 165 (1853). 



Carapax slightly narrowed behind, plications and rugse more 

 or less distinct. Frontal lobes rather prominent, frontal margin 

 sinuate, smooth or crenulate at the angles. Meros of chelipeds 

 with the posterior surfiice rugose, the anterior margin expanded 

 and distally truncate, a few spinose teeth near the base and 

 several on the truncate margin. Carpus externall}' rugose, inter- 

 nallj' with a prominent bifid or quadrifid tubercle. Hands with 

 oblique folds above and below, and a longitudinal ridge on the 

 lower outer surface. Fingers sub-excavate. Last joint of male 

 abdomen but slightly narrower than penult joint. 



Sandwich Is. ! (Nuttall, Pease, Jones, Wilkes' Expedition); Tahiti! 

 (A.J. Garrett); Avstralia / (E. Wilson); Mauritius/ (Guerin); 

 Aden; ! Natal! (Dr. T. B. AVilson) ; Indian and Pacific Oceans 



(Auct.) 



M. latifrons Edwards ex White. 



Oi'apsus latifrons White, in Jukes' Voyage of the Fly, ii, p. 337, PI. II, 



f. 2 (1847j. 

 Metopograpsus latifrens et maculatus'Eidw., Ann. Sci. Nat. Ill, xx, pp. 



166 and 165, PI. VII, f. 1 (1853). 

 Metopograpsus pictus A, M.-Edw., Ann. Soc. Ent. France, vii, p. 283 



(1867) ; Nouv. Arch, du Mus., ix, p. 289, PI. XIII, f. 2 (1873). 



Carapax narrowed behind, plications indistinct ; frontal lobes 

 granulate on the edge. Front broad, nearly straight, mai'gin 

 denticulate. Chelipeds similar to those of M. messor. Base of 

 last joint of male abdomen much narrower than the extremity of 

 penult joint. 



Batavia, ! (Dr. "Wilson); Singapore (White); Java (Edw); New Cale- 

 donia (A. M.-Edw.). 



M. oceanicus Jacq. et Lucas. 



Metopograpsus (Grapsus) oceanicus Jacqiiinot et Lucas, Voyage Astro- 

 labe et Zeelee, Crust., p. 73, PI. VI, f. 9 (Text 1853, Plates 1842-53). 



Metopograpsus quadridentatus Stimpson, Proc. Acad. Nat. Sci. Philadel- 

 phia, 1858, p. 102. 

 Pulo Han (J. et L.); near Hong Kong (Stm.) ; Nicobar Is. (Heller). 



