42 Bulletin Vanderlilt Marine Museum, Vol. V 



prising two-thirds of the total length; with its inner proximal angle 

 rounded, its inner margins meeting, smooth ; its greatest width slightly 

 less than that of the exognath, its lateral margins converging slightly 

 distally; the merus is long, narrow, tapered distally with the distal 

 margin bluntly angled, almost rounded ; the palp is not exposed. 



The ehelipeds are subequal in the male and very long; the merus 

 being slender, subcylindrical, as long as the carapace and covered 

 with small, pearly granules. The carpus is about one-fourth as long 

 as the merus ; the propodus and fingers considered together are about 

 as long as the merus, but the propodus is more laterally compressed 

 and tapers somewhat distally; the fingers are two-thirds as long as 

 the palm and sharply deflected; they are slender, tapered, the tips 

 crossing, the cutting edges set with conical teeth, that alternate with 

 those of the opposite side and with numerous fine hairs in among the 

 teeth. The carpus, palm and fingers are finely granulose, but dis- 

 tinctly less so than the merus. 



The ambulatories are very delicate, slender, subsimilar, decreasing 

 in length from the first to fourth pairs. 



Eeferences: Cmicellus anatum terius Rumphius, G. E., Amboin. Kari- 

 teitk., vol. I, p. 27, pi. 10, fig. C, 1741. 



Cancer punctatus Herbst, Naturg. Krabben und Krebse, Bd. I., pt. 

 II, p. 89, pi. 2, figs. 15, 16, 1782. 



Leucosia fugax Fabricius, Ent. Syst. Suppl., p. 351, 1798. — Bosc, 

 Hist. Nat. Crust, et Ins., vol. VI, p. 119, pi. L, figs. 1, 2, 1825. 



Myra fugax Leach, Zool. Miscell. vol. Ill, p. 24, 1814-17. — Des- 

 MAREST, Consid. Crust, p. 169, pi. 28, fig. 2, 1825.— H. Milne 

 Edwards, in Cuvier's Regne Anim. t. II, Crust., pi. 25, fig. 3, 

 1829-44.— Hist. Nat. Crust, t. II, p. 126, 1837.— DeHaan, Faun. 

 Japon. Crust, p. 134, pi. 33, fig. 1, 1837. — Bell, Trans. Linn. Soc. 

 London, vol. 21, p. 296, 1855. — Cat. Leucosiidae British Museum, 

 p. 12, 1855. — Stimpson, Proc. Acad. Nat. Sci. Phila. vol. X, p. 

 160, 1858. — A. Milne Edwards, Nouv. Archiv. du Mus. Hist. Nat. 

 Paris, t. X, p. 45, 1874. — Hilgendorf, Monatsb. Konig. Preuss. 

 Akad. Wiss. Berlin, p. 811, 1878.— E. Nauck, Zeits. Wiss. Zool. 

 vol, 34, p. 48, 1880, (gastric teeth). — Richters, in Mobius, 

 Meeresfaun. Mauritius, p. 157, 1880. — Miers, Proc. Zool. Soc. 

 London, p. 10, 13, 1884.— Rept. Voy. H. M. S. "Challenger," vol. 

 17, p. 313, 1886.— Cano, Boll. Soc. Nat. Napoli, vol. Ill, p. 253, 

 1889.— MuLLER, Verb. Naturf. Ges. Basel, Bd. VIII, p. 472, 1886. 

 — Ortmann, Zool. Jahrb. Syst. vol. VI, p. 581, 1892. — Hender- 

 son, J. R., Trans. Linn. Soc. Zool. (2), vol. V, p. 412, 1893. 



