92 Bulletin, Vanderhilt Marine Museum, Vol. Ill 



of the sixth segment is denticulate ; the caudal fan is much like that 

 of P. guttatus. 



The eyes are large ; the stalk constricted just below the cornea. 

 The antennular segment is ornamented with a pair of submedian 

 spines on its distal margin and a second pair behind the first pair, 

 about midway the length of the segment. 



The antennulae are smooth and have the first articles slender, 

 elongated, cylindrical; the second and third articles short, subequal, 

 the two considered together about as long as the first article; the 

 whips slightly unequal, the thicker the shorter, but a little longer than 

 the entire peduncle. 



The antennae have the peduncular articles much thicker proximally 

 than those of guttatus; the upper and outer surfaces of all three ar- 

 ticles covered with stout, sharp, forward-directed spines; the whips 

 are thick, tapering, setose, about one and one-third to one and one-half 

 times as long as the body. 



The five pairs of legs are each monodactyl, the dactyl tufted with 

 short, stubby bristles. 



Synonymy. — Palinurus argus Latreille, Ann. Mus. Hist. Nat. Paris., 

 vol. 3, p. 593, 1804 ; Nouv. Diet. Hist. Nat., vol. XVII, p. 296.— 

 Olivier, Encycl. Meth., vol. VIII, p. 663, 1811. — Lamarck, Hist, 

 des Anim. sans Vert., vol. V, p. 210, 1815. — Desmarest, Consid. 

 gen. sur les Crust., p. 185, 1825. — H. Milne Edv^ards, Hist. Nat. 

 Crust., vol. II, p. 300, 1834. — Heller, Reise Freg. Novarra, 

 Crust., p. 95, 1865 (Analytical table). — M. J. Rathbun, Ann. 

 Inst. Jamaica, vol. 1, art. 1, p. 44, 1897 ; Rapport Betreffende een 

 voorloopig onderzoek naarden tostand van de visscherij, Kolonie 

 Curasao, 1907, p. 326. 

 Panulirus argus White, List Crust. Brit. Mus., p. 69, 1847. — Smith, 

 Trans. Conn. Acad. Arts and Sci., vol. 2, p. 39, 1869. — Rankin, 

 Ann. N. Y. Zool. Soc, vol. XI, p. 536, 1900.— Spence Bate, Rept. 

 Voy. ''Challenger," Macrura, vol. 24, p. 76, 1888.— M. J. 

 Rathbun, Bull. U. S. Fish. Comm., vol. 20, pt. 2, p. 98, 1901.— 

 Verrill, Trans. Conn. Acad. Arts and Sci., vol. XI, p. 705, fig. 

 56, and pi. XCIV, fig. 1, 1902 ; The Bermuda Islands, vol. 1, p. 

 293, fig. 56, pi. XCIV, fig. 1, 1902 (habits and life history).— 

 Verrill, Trans. Conn. Acad. Arts and Sci., vol. 26, p. 7, pi. 1, 

 fig. 1, pi. 2, figs. 1 and 2 ; pi. 3, figs. 1 and 2, pi. 3A, figs. 2-6, pi. 8, 

 figs. 2, 2a, pi. 9, fig. 1, also text fig. 1, 1922. 



