OXTSTOMATOUS AND ALLIED CRABS OF AMERICA 225 



third, fourth, and fifth carpus and at distal end of merus a few red 

 reticulations (color of red on carapace). (W. L, Schmitt.) 



Measurements. — Male, Tortugas (6G385), length of carapace 56.3, 

 width 59, length of carapace spine 31.5, length of meral spine 35. G mm. 



Range. — Florida Straits to Windward Islands; 135 to 197 fathoms. 



Material examined. — See table 73, page 228. 



Genus CYCLOES De Haan 



Cyclocs De Haan, Fauna Japonica, Crustacea, pp. 67, 68, 1837 (type, C. granulosa 



De Haan). 

 Cryplosoma Brulle, in Barker- Webb and Berthelot's Histoire naturelle des lies 



Canaries, vol. 2, pt. 2, Crust., p. 16, 1840 (tj'pe, C. dentaium Brulle, p. 17 = 



C. cristatum Brulle, pi. 1, fig. 2). 



Carapace heart-shaped or subcircular. Front narrow, emarginate. 

 Orbits large, oval, a distinct suture or a fissure in the roof and two 

 gaps in the floor, in one of which the slender basal-antennary article 

 is lodged. Eyes large, eyestalks short and thick. Antennules folding 

 obliquely. The external maxillipeds close the buccal cavity; the 

 antero-internal angle of the merus is prolonged obliquely forward to 

 form a prominent lobule above articulation of palp. The endostomial 

 efferent branchial channel is closed by lamellar processes from first 

 pair of maxillipeds. Chelipeds similar to those of Calappa. Ambu- 

 latory legs compressed and of moderate size. Third, fourth, and fifth 

 segments of abdomen in male fused, in female all are distinct. 



West and east coasts of America; east Atlantic, Indian, and Pacific 

 Oceans. 



CYCLOfiS B.4IRDn Stimpson 



Plate 69, Figures 3, 4 



Cyclois bairdii Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7, p. 237 [109], 

 1860 (type locality, Cape St. Lucas; cotypes, U.S.N. M. no. 2001). — Verrill, 

 Trans. Connecticut Acad. Sci., vol. 11, p. 18, pi. 2, figs. 1, 2, 1901. 



Mursia balguerii Desbonne, in Desbonne and Schramm, Crustac6s de la Guade- 

 loupe, etc., p. 52, pi. 4, fig. 20, 1867 (type locality, Guadeloupe; type not 

 extant) . 



Cyclois balguerii Stimpson, BuU. Mus. Comp. Zool., vol. 2, p. 152, 1871. 



Cycloes bairdii Rathbun, Proc. U. S. Nat. Mus., vol. 21, p. 610, 1898; Bull. 

 U. S. Fish Comm. for 1900, vol. 20, pt. 2, p. 85, 1901.— Verrill, Trans. Con- 

 necticut Acad. Sci., vol. 13, pi. 27, fig. 2, 1908. — Finnegan, Journ. Linn. Soc, 

 London, Zool., vol. 37, p. 613, 1931. 



Cycloes bairdii var. atlantica Verrill, Trans. Connecticut Acad. Sci., vol. 13, 

 p. 423, figs. 46, 47, 1908 (type locality, Bermuda; type in Yale Mus.). 



Diagnosis. — Broader than long. A small posterolateral spine 

 behind middle of carapace. A short deep furrow either side of middle 

 is continued forward less conspicuously to the median interorbital 

 groove. 



