154 U.S. NATIONAL MUSEUM BULLETIN 292 



Diagnosis. — Carapace strongly convex longitudinally, very broad, 

 distinctly less than two-thirds as long as wide, widest posterior to 

 tips of lateral teeth; posterolateral margin unusually convex; frontal 

 lobes feebly convex, not produced anterolaterally. Fingers of chelipeds 

 white, white portion of fixed finger not extending proximally to base 

 of finger. A medium-sized species, maximum carapace length in 

 midUne about 27 mm. 



Habitat. — Muddy shores, especially among mangroves and bur- 

 rowing in banks of tidal streams. 



Distribution. — New York to Estado de Sao Paulo, Brazil (Ber- 

 mudas, San Salvador I., Cuba, Jamaica, Hispaniola, Puerto Rico, 

 Saint Thomas, Saint Croix, Islas Los Roques, Curasao). 



Genus Panopeus 



56. Panopeus herbstii H. Milne Edwards 



Figures 46c, 47 



Panopeus Herbstii H. Milne Edwards, 1834, p. 403 [type-locality: North America]. 



Panopeus lacustris Desbonne in Schramm, 1867, p. 28 [type-locality: Guadeloupe]. 



Panopeus Herbstii var. obesus Smith, 1869a, p. 278 [type-localities: Egmont Key, 

 Florida, and Aspinwall (Colon, Panama)]. 



Panopeus Herbstii granulosus A. Milne-Edwards, 1880, p. 309 [type-locality: 

 Bahia (Salvador, Brazil)]. 



Panopeus crassus A. Milne-Edwards, 1880, p. 313, pi. 57: figs. 1, la [type-localities: 

 Bahia (Salvador) and Desterro (Florianopolis) , Brazil]. 



Panopeus Herbstii, var. or subsp. minax Verrill, 1908, p. 348, text-fig. 15, pi. 15: 

 fig. 2 [type-locality: Harrington Sound, Bermuda Islands]. 



Panopeus herbstii. — Rathbun, 1930, p. 335, text-figs. 52, 53, pis. 156, 157. — 

 WiUiams, 1965, p. 196, figs. ISO, 183m. 



Panopeus herbstii f. obesa. — Rathbun, 1930, p. 336, pi. 156: fig. 3. 



Panopeus herbstii f. crassa. — Rathbun, 1930, p. 336, pi. 157: fig. 3. 



Panopeus herbstii f. simpsoni Rathbun, 1930, p. 337, pi. 157: figs. 1, 2 [type- 

 locality: Apalachicola, Florida]. 



Diagnosis. — Carapace moderately convex longitudinally, mod- 

 erately broad, two-thirds or more as long as wide, mdest between tips 

 of posterior lateral teeth; posterolateral margin nearly straight; 

 frontal lobes sinuous, with anterolateral lobules. Fingers of cheliped 

 dark brown, color on fixed finger extending proximally slightly onto 

 palm. A medium-sized species, maximum carapace length in midline 

 about 39 mm. 



Habitat. — Marine and estuarine, frequently among mangroves and 

 burrowing in banks of tidal streams. 



Distribution. — Massachusetts to Uruguay (Bermudas, Green 

 Turtle Cay, Bimini Is., Eleuthera I., Cuba, Jamaica, Hispaniola, 

 Puerto Rico, Saint Croix, Saint Martin, Antigua I., Guadeloupe, 

 Barbados, Trinidad, Islas Los Roques, Bonaire, Curasao, Aruba); 

 Oahu, Hawaii (probably introduced). 



