ORDER DECAPODA — SESARMA. 15 
GENUS SESARMA. Say. 
Shield quadrilateral, elevated in front, where it is broad and curved downwards, reticulated 
or granulated on the sides. Orbits deeply notched below their outer angle. Third joint 
of the outer jaw-feet longer than the second, much longer than wide, ovate, slightly sub- 
truncate in front, and having an oblique crest on its outer surface. Tarsi styliform, hairy, 
and generally wanting spines. 
SESARMA CINEREA. 
Cancer cinereus. Bosc, Hist. Nat. des Crustacés, Vol. 1, p. 204, pl. 6, fig. 1. 
Ocypode ( Sesarma) reticulatus. Say, Jour. Acad. Nat. Sc. Vol. 1, p. 73, pl. 4, fig. 6. 
Sesarma cinerea. MILNE-Epwarps, Hist, Nat. des Crust. Vol. 2, p. 75. 
Description. Shell somewhat longer in its transverse diameter, with numerous minute irre- 
gular punctures, and with oblique scarcely elevated ruge on each side behind. Cheeks and 
sides of the body with numerous parallel longitudinal lines of granules, surmounted at regu- 
lar distances by perpendicular equal hairs ; beneath the lateral edge of the shield are about 
six short ciliate curves, disposed in a longitudinal series. Front deeply hollowed in the mid- 
dle. Thighs mucronate above near the tip, with minute aculee behind, which are wanting on 
the posterior ones. ‘Tarsi striate with six ciliate lines. Hands subequal, scabrous, with a 
moniliform edge above. 
Inhabits holes in salt-marshes, in the same manner with the preceding. It is found along 
the shores of the Southern States and among the Antilles, but I am not aware of its having 
been yet detected on the coast of this State. 
GENUS NAUTILOGRAPSUS. Milne-Edwards. 
The shield shortest in its transverse diameter, convex. Tarsi large and spinous. Third joint 
of the external jaw-feet not crested. Front lamellar, advanced, not bent over, but simply 
inclined downward : lateral edges of the shield thin. Legs short; the four posterior pair 
acute at their tips. 
NavTILOGRAPSUS MINUTUS. 
Cancer minutus. Lin. HEersst, pl. 2, fig. 32. 
Grapsus minutus. LATREILLE, Hist. Nat. des Crust, et des Ins. Vol. 6, p. 68. 
G. cinereus. Say, Jour. Acad. Nat. Sciences, Vol. 1, p. 99. 
Nautilograpsus minutus. Epwarps, Hist, Nat. des Crust, Vol. 2, p. 90. 
Description. Body small, subquadrate, depressed ; the anterior angles acute, with a sinus 
behind them on the edge. A small spine, more or less distinct, behind the external canthus. 
