[547] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 253 
PANOPEUS Herpsti 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 New 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-lateral margin by a rounded sinus; and by 
the dactylus of the larger cheliped having a stout tooth near the base 
within. 
PANOPEUS DEPRESSUS Smith. Plate I, fig. 3. (p. 312.) 
~ Loe. 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.) 
Loe. 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.) 
Loe. cit., p. 55, 1859. Pilumnus Harrisit Gould, op. cit., p. 326, 1841. 
Massachusetts Bay to Florida. 
CARCINUS GRANULATUS (Say, sp.) (p. 312.) 
Cancer granulatus Say, loc. cit., p. 61, 1817. Carcinus menas Gould, op. cit., p. 
321; DeKay, op. cit., p. 8, Pl. 5, figs. 5, 6. (2) Carcinus menas Leach, Edwards, 
&e, 
Cape Cod to New Jersey, and perhaps much farther south. Our 
species may, very likely, be the same as the Carcinus menas 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. 
PLALTYONICHUS OCELLATUS Latreille. Plate I, fig. 4. (pp. 338, 533.) 
Encyclopédie méthodique, tome xvi, p. 152; DeKay, op. cit., p. 9, Pl. 1, fig. 1, Pl. 
5, tig. 7. Cancer ocellatus Herbst, Krabben und Krebse, Band iii, erstes Heft, 
p. 61, Pl. 49, fig. 4, 1799. Portunus pictus Say, loc. cit., p. 62, Pl. 4, fig. 4, 
1817. 
Cape Cod to Florida. 
