FISHERY BULLETIN: VOL. 81. NO. 4 



FIGURE 2.— Major chela showing straight line drawn between angle 

 at juncture of fixed finger with anterior margin of palm and tip; cusps 

 of some teeth raised above line in this example (Panopeus lacustris). 



Table 1. — Basic statistics for length percent 

 width of carapace in six species of Panopeus 

 from the western Atlantic Ocean. 



areolations of the carapace and its transverse lines of 

 granules are less distinct than in that species. The 

 chelipeds, however, are more smoothly granulated 

 than in P. lacustris, recalling the surface of chelae in 

 the simpsoni-herbstii group; but the tooth pattern of 

 the fixed finger has a striking similarity to that of 

 P. obesus. 



Panopeus herbstii H. Milne Edwards, 



s.s. 



Figure 3 



Cancer panope. — Say 1817:58, pL 4, fig. 3 (mis- 

 identified). 



Panopeus herbstii H. Milne Edwards 1834:403.— 

 Lucas 1840:90.— Gibbes 1845:63, 69.— 1850b:175 

 (part, not Key West material). — Leidy 1855:149. — 

 Smith 1869a:276 (part, the South Carolina and E. 

 Florida material). — 1869b:34 (part, list). — Coues 

 1871:120.— Kingsley 1878:318 [3] (part).— 

 1880:393 (part).— A. Milne Edwards 1878- 

 1880:308 (part), pi. 27, fig. 2, 2a. — R. Rathbun 

 1884:772 (part).— Benedict and Rathbun 



TABLE 2. — Linear regression analysis for width (x) and length (v) in millimeters of the car- 

 apace for samples of five species of Panopeus from the western Atlantic Ocean. 



Color. — Occasionally with random spots on external 

 side of palms. 



Known range. — Region of Rio de Janeiro, Brazil, to 

 Florianopolis, Brazil (and probably southward). 



Name. — The specific name is derived from the Latin 

 "australis," southern, and "obesus," in reference to 

 its similarity to P. obesus. 



Remarks. — Panopeus austrobesus has carapace 

 dimensions and outstanding anterolateral teeth that 

 almost exactly match those of P. lacustris, although 



1891:358 (part), pi. XIX, fig. 1, pi. XXIII, figs. 

 10(?), 12.— Rathbun 1905:6.-1930:335 (part, 

 forma typica), text figs. 52, 53; pi. 156, figs. 1-2. — 

 Fowler 1912:404, pis. 122-123.— Hay and Shore 

 1918:437 (part), pi. XXXIV, fig. 9.— Lunz 

 1937:13 (part).— McDermott and Flower 1952 

 2:48-49. — Williams 1965:196 (part), fig. 180.— 

 1974:34, fig. 97 (key).— 1984:412, fig. 326 

 (part).— Williams and Wigley 1977:11 (part, 

 distribution).— Gosner 1971:543, 550 (key), fig. 

 21.61A.— Van Engel and Sandifer 1972:160 

 (list).— Felder 1973:pl. 9, fig. 21.— Young 

 1978:182 (list).— Holthuis 1979:159 (selection 



866 



