THE CRUSTACEA OF NEW JERSEY. 443 



distally acute fingers dentated on interior margins. Ambulatory 

 legs short, joints compressed and (merus joints especially) some- 

 what dilated, penultimate joints ciliated on superior margins, and 

 with spinuliferous inferior margins, and short spinuliferous 

 dactyli compressed. 



Probably a single world-wide species, living on floating weed 

 in temperate and tropical seas. 



Planes minutus (Linnfeus). 



Plates 140 and 141. 



Gulf-ivced Crab. 



Cancer minutus Linnxus, Syst. Nat., Ed. X, 1758, p. 625. Pelagic, living in 



incus. 

 Grapsus minutus Latreille, Hist. Nat. Crust, VI, 1803, p. 68. The Ocean, in 



fucus. 

 Nautilograpsus minutus Milne-Edwards, Hist. Nat. Crust., HI, 1837, p. 90. 



High seas. 

 De Kay, N. Y. Fauna. Crust., VI. 1844, p. 15. Off New York harbor. 



Gibbes, Proc. Amer. Assoc. Adv. Sci., Ill, 1850 (1851), p. 182. Gulf 



Stream from Gulf of Mexico to New York. 



Stimpson, Proc. Acad. Nat. Sci. Phila., 1858, p. 103. In North Atlantic 



Ocean, common in Sargassum. 



S. I. Smith and O. Harger, Trans. Conn. Acad., Ill, 1874. p. 26. N. 



Lat. 41.°, W. Long. 65°. 



Kingsley, Proc. Acad. Nat. Sci. Phila., 1880. p. 202. Gulf Stream, 



mundane. 



Heilprin, Proc. Acad. Nat. Sci. Phila., 1888. p. 320. (Shelly Bay, 



Bermuda.) 



Howe, Bull. U. S. F. Com., XIX. 1899 (1901), p. 240. N. Lat. 39°-40°, 



W. Long. 70°, at tiie surface. 

 Planes minutus White, List Crust. Brit. Mus., 1847, p. 42. Gulf of Florida 



and .\tlantic Ocean. 

 Grapsus cinereus (nee Bosc) Say, Journ. .\cad. Nat. Sci., I, 1817, p. gg. Gulf 



Stream. 



Description. — Carapace quadrate, surface rather evenly con- 

 vex, front lateral edge slightly convex, also slightly converging 

 posteriorly, and witli notch short space below anterior terminal 

 angle, which sharp and triangular, though not projecting far be- 

 yond hind edge of orbit. Surface of carapace with very indis- 

 tinct hollow broken trans\-er?e plicre. becoming oblique on 



