18 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Genus SESARMA Say. 
Sesame: Say, .Four. Phila. Arad. Sri., i, 76, 1817. 
Carapace thick, quadrate; lateral margins straight, and entire or toothed. External maxillipeds 
with an oblique piliferous ridge crossing ischium and merits; the merits elongate, its apex rounded. 
Antenme entering the orbit. 
Key to the Porto Rican subgenera of the genus S 'esarma. 
A. Lateral margins with a tooth behind the orbital angle Srtarmn 
A'. Lateral margins entire olometopus 
Subgenus SESARMA Say. 
Lateral margins of carapace with a tooth behind orbital angle. No pectinated ridges on upper 
surface of the palm. 
Sesarma (Sesarma) curagaoense de Man. 
Sesarma cnrai/aoensis de Man, Notes Leyden Mus., xiv, 257, pi. x, f. 6, 1892. 
Carapace wide; superior frontal lobes faintly marked; lateral teeth prominent and separated by 
a deep notch. Surface finely punctate and with scattered bunches of fine pubescence. Eyes reaching 
the extremity of the outer angle of the orbit. Propodus of cheliped in male very short and deep; 
dactylus strongly arched. 
Dimensions of male: Length, 12.2 mm.; anterior width, 15.1 mm.; posterior width, 14.9 mm.; 
superior frontal width, 8.9 mm. ; length of propodus of cheliped, 12 mm. ; greatest depth of same, 7.8 mm. 
Curasao; Jamaica; Cuba. One male was taken in Porto Rico, but is without indication of 
special locality. 
Subgenus HOLOMETOPUS Milne Edwards. 
Holometopus Milne Edwards, Ann. Sei. Nat. (3). xx. 187 (153), 1853. 
Lateral margins of the carapace entire. No pectinated ridges on the upper surface of the palm. 
Sesarma (Holometopus) ricordi Milne Edwards. 
Sesarma ricordi Milne Edwards, Ann. Sci. Nat. (3), xx, 183 (149), 1853. 
Carapace broader than long, and broader posteriorly than anteriorly. Granules of anterior and 
antero-lateral regions few and small, and scarcely visible to naked eye. Front about 3.5 times as 
wide across the superior lobes as it is high; sides concave. Appendages of first abdominal segment 
transversely arcuate and fringed with hair. Carpus of chelipeds rugose. Hands smooth to eye, showing 
numerous line granules under the lens. Ambulatory legs long and slender, merus of third pair being 
3 or more times as long as broad in adults, less than 3 times as long as broad in small specimens. 
Dimensions of male: Length, 14.4 mm.; anterior width, 15.5 mm. ; posterior width, 15.2 mm.; 
width of front on a level with the superior orbital lobes, 8.3 mm. 
Florida Keys to Sabanilla and Trinidad; Bermudas ( Verrill) . Porto Rico: Puerto Real; Boqueron 
Bay; Hucares; Ensenada Honda, Culebra. It is probably this species which Gundlach reports from 
Bayamon as Sesarma cinerea. 
Genus CYCLOGRAPSUS Milne Edwards. 
Cyclograpsus Milne Edwards, Hist. Nat. Crust., ji, 77, 1837. 
Carapace anteriorly deflexed; sides arcuate, entire; front about half the width of carapace. 
Antennae not excluded from orbit. Merus of external maxillipeds about as long as the ischium; its 
external angle well marked, the palpus articulating with the anterior margin; merus and ischium 
crossed by an oblique piliferous ridge. 
Cyclograpsus integer Milne Edwards. 
Cyclograpsus integer Milne Edwards, Hist. Nat. Crust., ji, 79, 1837. 
Carapace for the most part smooth and punctate; granulate near front and antero-lateral angle. 
Lateral margins marked by a raised granulate line. Inferior border of orbit separated from external 
angle by a deep cut; no postorbital furrow. Merus of chelipeds with a faint subterminal lobe on 
