1880.] NATURAL SCIENCES OF PHILADELPHIA, 153 



35. Gelasimus tangieri Eydous. PI. x, f. 30. 



Oelasimus taiigieri Eydoux, Magazin de Zoologic, 1835, clvii, PL XVII; 

 Edw., Ann. Sci. Nat., 1852, p. 151, PI. IV, f. 21; Heller, Crustaceeu 

 des siidlichen Europas, p. 101 (1863j. 



Carapax transversely nearly flat, the sides of the branchial 

 regions strongly arcuate ; above everywhere granulate ; lower 

 margin of orbit bimarginate. Meros of larger cheliped externally 

 roughened, the upper margin produced into an arcuate crest 

 which is fringed with hairs, the lower margin with two rows of 

 tubercles. Carpus elongate, externally with prominent tubercles, 

 an oblique ridge on the inner surface with a slender obtuse spine 

 at about the middle. Palm margined above, and armed with 

 spiniform tubercles, externally with depressed tubercles, inferior 

 margin denticulate to the tip of the thumb ; internally a row of 

 tubercles near the base of the fingers, a second runs obliquely 

 upward from the lower mai'gin, meeting a third running backward 

 from the articulation of the finger, elsewhere internally smooth. 

 Fingers elevated, strongh' compressed. Dactylus Avith the upper 

 margin and outer basal surface tuberculate ; the rest of the outer 

 surface finely granulate. Occludent margins of both fingers with 

 three rows of tubercles, the margin of the finger regularly arcuate, 

 that of the thumb with a prominence near the middle, Meral 

 joints of the ambulatory feet denticulate above and below. 



Tangier! Guerin's Collection (Eydoux's Types); West Africa! (Du- 



chaillu); [?] Bahia ! E. Wilson (Phila. Acad.); Cadiz and Coasts of 



Morocco (Edwards). 



Edwards' figure is very poor. 



36. Gelasimus perlatus Herklots, PI, s, f, 25. 



Gelasimus perlatus Herklots, Additamenta ad Famiam, p, 16 (1851'; 

 Edw., Ann. Sci. Nat., Ill, xviii, p. 151 (1852); Hilgendorf, Monats- 

 berichte Berlin. Akad., 1878, p. 806. 



Carapax arcuate in both directions, above with patches of 

 o-ranules more prominent on the anterolateral portions. Larger 

 cheliped much smaller than is usual in the genus. Meros granu- 

 late, the posterior margin rounded, the anterior produced in an 

 arcuate crest; carpus and hand externally granulate. Hand 

 cristate above, internally without tubercular ridges, fingers com- 

 pressed. 



Guinea! E. Wilson (Phila. Academy); Boutry, West Const of Africa 

 (Herklots); Loando, Chinchoxo, Liberia (Hilgendorf),. 



11 



