. Decapod Crustacea of Bermuda. Their distribution, variations, and habits. Decapoda (Crustacea). 380 A. E. Verrill—Decapod Crustacea of Bermuda. Achelous Sebae (H. ) Smith. Portunus sanguinolentus {pars) Lafcreille, Encyc. Method., pi. 272, fig. 6. {non Herbst sp. nee Stimpson). Lupa Sebce H. , Hist. Nat. Crust., i, p. 455, 1834. ISFeptunus Sebce A. , Arch. Mus. Hist. Nat., x, p. 329, pi. xxviii, figs. 2, 2a, 1861; Miss. Sci. Mex., v, p. 217, 1879. Achelous Seba; S. I. Smith, Crust. Brazil, these Trans., ii, p. 34, 1869 (Brazil). Portunus (Achelous) Seba; Eathbun, Brach.
. Decapod Crustacea of Bermuda. Their distribution, variations, and habits. Decapoda (Crustacea). 380 A. E. Verrill—Decapod Crustacea of Bermuda. Achelous Sebae (H. ) Smith. Portunus sanguinolentus {pars) Lafcreille, Encyc. Method., pi. 272, fig. 6. {non Herbst sp. nee Stimpson). Lupa Sebce H. , Hist. Nat. Crust., i, p. 455, 1834. ISFeptunus Sebce A. , Arch. Mus. Hist. Nat., x, p. 329, pi. xxviii, figs. 2, 2a, 1861; Miss. Sci. Mex., v, p. 217, 1879. Achelous Seba; S. I. Smith, Crust. Brazil, these Trans., ii, p. 34, 1869 (Brazil). Portunus (Achelous) Seba; Eathbun, Brach. and Macr. Porto Eieo, p. 46, 1901. Figure 27. This fine species grows to large size. It is easily recognized by an upright, acute spine on the basal joint of the posterior legs, and a small spinule on the outer distal angle of the raerus joint of the same legs ; and when recent by a pair of large round red spots on the flanks of the carapace. But these spots are liable to fade in alcohol, and in dry specimens exi^osed to light, becoming pale Figure 27.—Achelous Sebce, about }^ nat. size ; b, abdomen of male. A. After It is said to be the only species having an upright spine on the basal joint of the swimming legs. The chelffi have two distal dorsal spines, one behind the other. The middle two frontal teeth are a little more prominent than the outer ones, which are more acute. The inner orbital tooth is acute. The posterior lateral tooth is sharp, rather long, somewhat curved forward, and bears the small preceding tooth on the inijer basal portion. In life the carapace and legs are closely pubescent and the legs and chelipeds are fringed with longer red hairs. The merus of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Verrill, A. E. (Addison Emery), 1839-1926. New Haven : Yale
Size: 1959px × 1275px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectdecapodacrustacea
