376 A. E. Verrill — Decapod Crustacea of Bermuda. 



Portunus Sayi (Gibbes) Eathbun. 



Portunus pelagicus Bosc, Hist. iiat. des Crust., p. 319, pi. v, fig. 3, 1805. 

 Lupa pehujica Say, Jour. Acad. Nat. Sci. Pliilad., i, p. 97, 1817. DeKay, 



Nat. Hist. New York, Crust., p. 11, pi. vi, fig. 8, 1844 («on Linn, spec, nee 



Fabr.). 

 Lujm Sayi Gibbes, Proc. Amer. Assoc. Adv. Sci., 8d meeting, p. 178, 1850. 



Dana, U. S. Expl. Exped. Crust., p. 278, pi. xvi, fig. 8, 1852. Stimpson, 



Proc. Acad. Nat. Sci. Pliilad., 1858, p. 38. 

 Nej^tunus Sayi Stimpson, Ann. Lye. Nat. Hist. New York, vii, p. 220 (92), 



1860; Bulletin Mus. Comp. Zool., i, p. 147, 1870. A. Milne-Edw., Nouv. 



Arch, du Mus. d'Hist. Nat., x, p. 317, pi. xxix, figs. 2, 2a, 26, 1861. Smith 



and Harger, Trans. Conn. Acad., iii, p. 26, 1874. Kingsley, Proc. Acad. 



Nat. Sci. Philad., 1878, p. 3i9, 1878; op. cit., for 1879, p. 398. A. M.-Edw., 



Miss. Sci. Mex., v, p. 210, 1879. Smith, these Trans., v, p. 121, 1879. 

 Portunns Sayi M. J. Ratlibun, Bull. Labr. Nat. Hist. Univ. Iowa, p. 276, 



1898 ; A.mer. Nat., xxxiv, p. 140, 1900. 

 ? Neptunus Juisfatus W. Stone, in Heilpriu's Berm. I., p. 147 {non Linne sp.). 



Figure 25. Plate XVIII, Figure 1. Plate XXI, Figure 1. 



This has the anterior ambulatory legs longer, and decidedly more 

 flattened and fringed more strongly with long h.airs on the distal 



Figure 25. — Portunus Sayi, }., ^^^t. size. Drawing by J. H. Emerton, from 

 nature. 



joints than any other of our allied species, and its swimming legs 

 are long and thick, in accordance with its more strictly oceanic 

 habits. The merus and carpal joints of the swimming legs, also, are 

 smooth, ovate, and thickened, and the basal joints are longer than 

 usual. It is an active swimmer. The carapace is smoother than in 

 the other Bermuda species. In addition to these characters, it has, 

 as other diagnostic characters, four small, but nearly equally promi- 

 nent and regular frontal teeth; the inner ones rather smaller and 



