4 PROCEEDINGS OF THE NATIONAL. MUSEUM. vol.63. 



of right cheliped, with bases of fingers attached; Cat. No. 333436, 

 U.S.N.M. 



Measur'ernents. — Greatest length of pahn (from between the fin- 

 gers) 26, superior or shortest length 16, greatest height, at distal- 

 end 19.6, greatest thickness 12 mm. 



As shown by the measurements, this is a short, stout hand; the 

 distal end is vertical, the proximal end very oblique; the outer sur- 

 face is very convex in a vertical direction, slightly convex from end 

 to end ; the upper surface ends proximally in a thick lobe above the 

 articulation of the wrist ; there is a small hump also at the proximal 

 end where the hand is longest. The surface is partly overlaid by 

 a hard matrix, but the palm appears to be without ornamentation. 



A cross section of the fingers near their bases (pi. 2, fig. 7) is 

 broad-oval, a little higher than wide, the dactylus smaller than the 

 propodal or fixed finger. 



The onl}^ Zantho-psis known from the West Indies is Z. hartholo- 

 maeensis ^ from the Eocene of St. Bartholomew, which was described 

 from the carapace only. 



PANOPEUS, species indeterminable. 



Republic of Haiti : High bluff on left bank of River I'Ayaye about 

 1 km above trail crossing; Thomonde formation; lower Miocene 

 series; W. P. Woodring (9907) ; fragments of five fingers from the 

 clielae of a Panopevs; Cat. No. 333434. They might be any of the 

 three common Recent species in the West Indies. One specimen 

 is the proximal end of a dactyl showing the large, dark brown, 

 backward-pointing tooth of the major cheliped; two others are, 

 respectively, a dactyl and a fixed finger of a major cheliped, from 

 both of which the proximal portion is lacking ; the remaining two are 

 dactyls of a minor cheliped. 



A similar specimen was found in the Dominican Republic in the 

 Yaqui Valley at Cercado de Mao.' 



? PANOPEUS, species. 



Plate 1, figs. 4-6. 



Republic of Haiti: High bluff on left bank of River I'Ayaye, 

 about 1 km above trail crossing; Thomonde formation; lower Mio- 

 cene series; W. P. Woodring (9907); three dactyli from minor 

 chelipeds of a different species from the preceding, and not referable 

 to any of the West Indian species now existing; Cat. No. 333433, 

 U.S.N.M. 



Characterized by the superior ridge, the proximal end of which 

 begins inside the middle of the upper surface; it gradually slants 



» Publ. No. 291, Carnegie Inst. Washington, 1919, p. 176. » Idem., p. 179. 



