1880.] NATURAL SCIENCES OF PHILADELPHIA. 149 



Carapax transversely nearly flat ; inferior margin of orbit 

 crenulate. Meros of larger cheliped smooth, angles rounded, 

 carpus the same with a few obsolete granulations on the upper 

 surface. Hand smooth, sub-marginate below, an oblique row of 

 tubercles on the inner surface, running up and back from near the 

 lower margin half way to articulation with the carpus, and two 

 sitttilar cuived lines near the articulation of the dactylus. Thumb 

 regularly tapering, a prominent tubercle near the middle, extremity 

 sub-excavate. Dactylus distally strongly curved, extending 

 slightly beyond the thumb. 



Australia! E. Wilson; Singapore! Dr. McCartee (Phila. Acad.); 

 Zanzibar! (C. Cooke) "N. W. Boundary Survey, A. Campbell, 

 Commr., Dr. C. B. Kennerly" ! (Peabody Acad.) ; Seas of India 

 and Asia (Edw.) ; Ceylon, Nicobars Madras (Heller); Mozam- 

 bique Inhambeni (Hilgendorf) ; Pondicherry (White) ; Valparaiso 

 (Edw. and Lucas) ; Vancouver (Bate) ; Lower California (Lock- 

 ington) ; Tahiti [^im.) \ Red Sea (Kossmann). 



25. Gelasimus laoteas DeHaan. PI. x, f. 28. 



Ocypode (Gelasimua) lacteus DeHaan, Fauna Japonica Crust., p. 54, 

 PI. XV, f. 5 (183.3). Oelasimus lacteus Edw., Ann. Sci. Nat., Ill, 

 xviii, 150, PI. IV, f. 16 (1852) ; Stm., Proc. Phila. Acad., 1858, 100; 

 Miers, Proc. Zool. Poc, 1879, p. 36. 



Carapax longitudinally strongly arcuate, transversely nearly 

 f.at; antero-lateral angles prominent; meros of larger cheliped 

 externally granulate, a constriction of the upper margin near the 

 articulation with the carpus, lower crenulate or even denticulate. 

 (Carpus externally smooth, inner edge acute denticulate ; hand ex- 

 ternally finely granulate, above more plainlj^ so ; a crenulated 

 ridge near the inner lower margin and one or two near the fingers. 

 Fingers elevated, strongly compressed, the thumb suddenly nar- 

 rowed near the apex. 



Japan! E. Wilson ; Pondicherry ! Dr. T. B. Wilson fPhila. Acad.) ; 

 Japan (DeHaan) ; China (Edw. Stm.). 



33. aelasimas splendidas Stm. 



Qelasiinus splendidus Stm., Proc. Phila. Acad., 1858, p. 99. 



Inferior margin of orbit crenulate, externally rounded. Larger 



hand nearly smooth, internally with an oblique tubercular crest. 



Crest at the base of the fingers nearly obsolete. Fingers long, 



slender, slightly denticulate. Thumb with the apex excavate 



(Stm.). 



Hong Kong (Stm.). 



