Boone, Crustacea, Cruises of "Eagle" and ''Ara," 1921-28 169 



with broken rugae; the palm is short and thick, with an acute, sub- 

 distal tooth on the upper margin; the outer surface is covered by 

 transverse rugae, and has also two longitudinal carinae, in addition 

 to those on the upper and lower margins, making four carinae in all. 

 The fingers are almost as long as the palm, the upper one with three 

 longitudinal carinae, the lower finger with two carinae. The small 

 claw has the fingers regularly dentate, close-fitting ; the large one has 

 an elliptical gape and a large, sub-basal tooth on the upper finger. 

 The tips, or nearly half the fingers, are of a much darker color. 



The first, second and third ambulatories are slender, subequal, finely 

 hirsute ; the propodi are short and are ornamented with two longitud- 

 inal carinae on each lateral face in addition to the carinae of the an- 

 terior and posterior lateral margins; the dactyli are approximately 

 one and one-half times as long as the related propodi, and are very 

 slender, tapering, with two longitudinal carinae on each lateral face, 

 the tip acute; the lateral edges of the dactyli are fringed with setae. 



Synonymy. — Cancer corrugatus Pennant, Brit. Zool., vol. 4, p. 5, pi. 

 5, fig. 9, 1777. 



Portunus corrugatus Leach, Edinb. Encycl. Lond., vol. 7, p. 390, 

 1814; Trans. Linn. Soe. Lond., vol. XI, p. 315, 1815; Malac. Po- 

 dopth. Brit., pi. 7, figs. 1 and 2, 1815. — H. Milne Edwards, Hist. 

 Nat. Crust., vol. 1, p. 443, 1834. — DeHaan, Crust, in von Siebold, 

 Fauna Japonica, p. 40, 1835. — Bell, Brit. Stalkeyed Crust., p. 94, 

 1853. — ^A. Milne Edwards, Archiv. Must. Hist. Nat., vol. X, p. 

 401, pi. 26, fig. 3, 1861.— Heller, Crust, des Sudl. Europa, p. 86, 

 1863.— Miers, Proc. Zool. Soc. Lond., p. 33, 1879.— Voy. ''Chal- 

 lenger" Eept. Zool., vol. 17, p. 200, 1886.— J. Bonnier, Catal. des 

 Crust, de Concarneau, p. 26, 1887. — A. E. Ortmann, Zool. Jahrb. 

 Syst., vol. 7, p. 70, 1893. — ^A. Milne Edwards and Bouvier, Ex- 

 ped. Sci. du Travailleur et du Talisman, Crust. Decap., p. 64, 

 1900. — 0. Pesta, Die Decapoden fauna der Adria, p. 405, fig. 132, 

 1918 (and extensive synonymy). 



Portunus carcinoides Kinahan, Dubl. N. H. Review Proc. of Soc, 

 vol. IV, p. 66, pi. IX, fig. 3, 1857. 



Portunus strigilis Stimpson, Proc. Acad. Nat. Sci. Phila., p. 38, 1858. 

 A. Milne Edwards, torn, cit., p. 402, 1861. 



Portunus suh corrugatus A. Milne Edwards, Archiv. Mus. Hist. Nat., 

 torn, cit., p. 402, pi. 36, fig. 2, 1861, variety. 



