[547] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 253 



PANOPEUS HERBSTII Edwards, (p. 472.) 



Op. cit., vol. i, 403, 1834; Smith, Proceedings Boston Soc. Nat, Hist., vol. xii, p. 

 276, 1859. 



Long Island Sound to Brazil/ but not common north of Xew Jersey. 

 It is readily distinguished from the following species, by the tubercle on 

 the subhepatic region, just below the first lobe of the antero-lateral 

 border of the carapax ; by the postorbital tooth being separated from the 

 second tooth of the antero-laterar margin by a rounded sinus; and by 

 the dactylus of the larger cheliped having a stout tooth near the base 

 within. 



f PANOPEUS DEPRESSUS Smith. Plate I, fig. 3. (p. 312.) 



Loc. cit., p. 283, 1859. 



From Cape Cod to Florida, and often carried with oysters much 

 farther north. It is, perhaps, native in Massachusetts Bay. 



, PANOPIUS SAYI Smith, (p. 312.) 



Loc. cit,, p. 284, 1859. 



Associated with the last, and having the same range. It is easily dis 

 tinguished from the last species by its narrower, more convex, and 

 swollen carapax, and by the more projecting and arcuate front. The 

 terminal segment of the abdomen of the male is also quite different in 

 the two species; in P. Sayi it is broader than the preceding segment, 

 about two-thirds as long as broad, the edges slightly concave, and the 

 tip abruptly triangular, while in P. depressus it is narrower than the 

 preceding segment, about three-fourths as long as broad, the edges con 

 vex, and the tip broadly rounded. 



PANOPEUS HARRISII Stimpson. (p. 313.) 



Loc. cit., p. 55, 1859. Piltimnns Harrisii Gonld, op. cit., p. 326, 1841. 



Massachusetts Bay to Florida. 

 .. OARCINUS GRANULATUS (Say, sp.) (p. 312.) 



Cancer yrannlatus Say, loc. cit., p. 61, 1817. Cardnus ma nas Gould, op. cit., p. 

 321 ; DeKay, op. cit., p. 8, PI. 5, figs. 5, 6. (?) Cardnus mccnas Leach, Edwards, 

 &c. 



Cape Cod to Xew Jersey, and perhaps much farther south. Our 

 species may, very likely, be the same as the Cardnus mcunas of Europe, 

 but its not extending north on our own coast throws some doubt upon 

 this until there has been a careful comparison of specimens from the 

 two sides of the Atlantic. 



. PLATYONICHUS OCELLATUS Latreille. Plate I, fig. 4. (pp. 338, 533.) 



Encyclopedic methodiqne, tome xvi, p. 152 ; DeKay, op. cit., p. 9, PI. 1, tig. 1, PI. 

 5, fig. 7. Cancer ocellatus Herbst, Krai/ben und Krebse, Band iii, erstes Heft, 

 p. 61, PL 49, fig. 4, 1799. Portunus plcins Say, loe. cit,, p. 62, PI. 4, fig. 4, 

 1817. 



Cape Cod to Florida. 



