142 PROCEEDINGS OF THE ACADEMY OF [1880. 



ternally with crests as in G. cuUrimanus, but less prominent. 

 Digits rather broad, externally sulcata ; inner margin nearly 

 straight, irregularlj'^ dentate, two or three teeth larger than the 

 others (Stm.). 



Loo Ghoo (Stm.). 



10. Gelasimus forcipatus White. PI. ix, f. 9. 



Qelanmus forcipatus White, Catalogue Brit. Mus. Crust., p. 36, sine 

 descr. (1847) ; Voyage Samarang Crust., p. 50 (1848). Gelasimun 

 coarctatus Edwards, Ann. Sci. Nat., Ill, xviii, p. 146, PI. Ill, f. 6 

 (1853; ; Heller, Crustaceen Sud. Europas, p. 100 (1863) ; Alph. 

 Milne-Edwards, Nouv. Arch, du Mus. d'Hist. Nat., IX, p. 272, PI. 

 XII, f. 4 (1873). 



Carapax convex, naiTOwed behind. Meros of larger cheliped 

 externally granulate, its margins denticulate. Carpus granulate, 

 inner margin produced but without a prominent tooth. Palm 

 externally granulate, its upper border slightly margined, its lower 

 tuberculate ; on the inside a few tubercles in a curved line near 

 the base of the dactjdus, and an oblique line from the lower 

 margin runs up to the articulation with the carpus, dactylus 

 granulate at the base, otherwise the hand and fingers are smooth. 

 Thumb regularly tapering, with an external impressed line, its 

 occludent margin regularly arcuate, with genei'ally a prominent 

 tubercle near the middle. Dactylus with a prominent distal 

 dentate lobe. 



[?1 Odessa/ Guerin (Phil. Acad.). Philippines! Drs. Wilson and 

 Burroughs (Phil, Acad.). Australia! E. Wilson (Phil. Acad.). 

 Borneo (Adams and White). Odessa (Edw. ). New Caledonia, 

 (A. M.-Edw.). 



I have united these two nominal species from an actual com- 

 parison of specimens. In the collection of Guerin-Meneville now 

 in the possession of the Philadelphia Academy, is a specimen 

 labelled " Gelasimus coarctatus Edw., Cat. Mus., Paris, Odessa," 

 and which was probably one of the original specimens which was 

 the foundation of Edward's description. I am strongly inclined 

 to doubt of the authenticity of the locality " Odessa," as I have 

 been unable to find any other authority than that of Edwards. 

 Marcussen in his Fauna of the Black Sea (-Archiv. fur Natur- 

 geschichte xxxiii, pp. .358-363, 1867) does not mention it. His 

 subsequent paper and that of Uljanin, I have not seen. Heller 

 merely quotes from Milne-Edwards. 



