OXYSTOMATOUS AND ALLIED CRABS OF AMERICA J 53 



Cangrejo Tortugas Parra, Dcscripcion de diferentcs piezas de historia natural 



las mas del ramo maritimo, p. 137, pi. 51, fig. 2, 1787. 

 Cancer mediterraneus Hekbst, Versuch einer Naturgeschichte der Krabben und 



Krebse, vol. 2, p. 150, pi. 37, fig. 2, 1794 (type locality, Mediterranean Sea 



[probably incorrect]) . 

 Persephona latreillii Leach, Zoological miscellany, vol. 3, p. 22, 1817 (locality 



not given) [West Indies (Bell)].i^ 

 Persephona lamarckii Leach, Zoological miscellany, vol. 3, p. 23, 1817 (locality 



not given) [West Indies (Bell)].!^ 

 Guaia punctata Milne Edwards, Histoire naturelle des Crustaces, vol. 2, p. 127, 



1837 (type locality, Antilles). — Desbonne and Schramm, Crustaces de la 



Guadeloupe, etc., p. 53, 1867. 

 Persephona guaia Bell, Trans. Linn. Soc. London, vol. 21, p. 292, 1855; name 



substituted for Guaia punctata. 

 Persephona punctata Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7, p. 70, 



1859 (part: synonymy but not localities). — Rathbtjn, Ann. Inst. Jamaica, 



vol. 1, p. 38, 1897; Bull. U. S. Fish Comm. for 1900, vol. 20, pt. 2, p. 87, 



1901 (part).— Boone, Bull. Vanderbilt Mar. Mus., vol. 2, p. 54, pi. 10, fig. B, 



1930. 

 Persephone punctata von Martens, Arch, fiir Naturg., vol. 38, p. 113, 1872. 



In a revision of P. punctata it was found that the form inhabiting 

 the United States is different from that in the West Indies and South 

 America; there are a few instances of overlapping and therefore the 

 latest laiown form is made a subspecies of the typical or southern 

 form. 



Diagnosis. — Granulation fine. Subhepatic angle a broad blunt 

 tooth. Only 3 spines on carapace. 



Description. — Carapace globular, with three sharp, stout, recurved 

 spines, one at either end of posterior margin and one median just 

 above posterior margin. On the upper surface of carapace are small 

 granules of unequal size, numerous but not crowded and barely 

 visible to the naked eye. Regions of carapace ill defined. Front 

 broadly bidentate, the spiniform angles of the branchial channels 

 can be seen beyond it in a dorsal view. Behind tip of front the antero- 

 lateral boundary of carapace is formed by the side wall of the sub- 

 hepatic region, which is continuous with upper surface of carapace 

 and bounded below by a line of granules, which ends posteriorly in 

 a shallow, blunt, obtuse-angled prominence or tooth. Between 

 hepatic and branchial regions there is a very shallow and ill-defined 

 sinus in margin. Above it the branchial margin begins and is marked 

 by a line of fine, crowded, bead granules extending as far as the pos- 

 terior margin, which is on a lower level and more coarsely granulate. 

 Chehpeds rather stout, about 1.75 times the length of carapace in 

 adult male. Arm cylindrical, tuberculate, and granulate, more 

 coarsely above than below, and proximally than distally. Wrist 

 and hand much smoother, very finely granulate above and below, 



" "It is also remarkable that Leach should have been unaware that those specimens were originally in 

 the Sloanian Collection, and therefore brought from the West Indies." Bell, Trans. Linn. Soc. London, 

 vol. 21, p. 293, 1855. 



