154 Bulletin Vanderbilt Marine Museum, Vol. VI 



spines, which on the inferior margin of the carpus, propodus and 

 dactyl become much more numerous. 



The third, fourth and fifth pairs of legs are similar, subequal, 

 very slender, with the merus slightly longer than the carpus ; the 

 propodus twice the length of the carpus ; the dactyl short, unguicu- 

 late, with a brush of bristles. These legs are finely setose. 



The pleopoda are biramous, subf oliacius, excepting the reduced 

 first pair, with the blades subequal. The first pair of pleopoda has 

 the inner branch pointed, only about half as long as the outer 

 branch. 



References : Polaemon lar, Fabricius, J., Ent. Syst. Suppl., 1798, 

 p. 402.— Ortmann, a., Zool. Jahrb. Syst., Bd. V, 1891, 

 p. 724. — DE Man, J. G., in Max Weber's Zool. Ergebn., Bd. 

 II, 1892, p. 445. — BORRADAILE, L. A., Proc. Zool. Soc. London, 

 1898, pt. 2, p. 1008 ; Dr. Willey's Zool. Results to New Britain, 

 New Guinea, Loyalty Isles and Elsewhere, 1895-97, pt. 4, 1900, 

 p. 409.— Lenz, H., Zool. Jahrb. Syst., Bd. XIV, 1900-01, p. 

 436. — DE Man, J. G., Senckenb. Naturf. Gesell. Frankfurt, 

 Bd. XXV, 1900-03, p. 774.— CowLES, R. D., Philippine Journ. 

 Sci., vol. IX, section D, Biology, 1914, p. 380, pi. 2, figs. 7, 7a-h. 



Palaemon ornatus, Olivier, A. G., Encyl. Meth., t. VIII, 1811, p. 

 660.— Edwards, H. M., Hist. Nat. Crust., t. II, 1837, p. 396. 



Palaemon (Eupalaemon) lav, NOBILI, G., Ann. Mus, S. Nat. 

 Genova, ser. 2A, t. XX, 1899-01, p. 240. ; Mem_. Torino R. Ace. 

 Sci., ser. 2, t. LVII, 1907, p. 361.— Lenz, H., in Voeltzkow's 

 Reise in Ost.-Afrika, 1903-05, Wiss. Ergebn., Bd. II, Syst., 

 1910, p. 567.— DE Man, J. G., Zool. Jahrb. Syst., Bd. 

 XXXVIII, 1915, p. 415.— Roux, J., Nova Guinea Zool., vol. 

 XV, livr. Ill, 1927, p. 322, Leiden; and Sarasin, F., Nova 

 Caledonie: Recherches Sci. en Nouvelle-Caldonie et aux lies 

 Loyalty. A. Zool., t. IV, 1925-26. 



Palaemon (Eupalaemon) carcinus (Fabricius) 

 Plate 39 



Type: Fabricius' type came from "America" and, if still 

 extant, is probably in the British Museum of Natural History. 



Distribution : This species is reliably known from India to 

 New Guinea and the Philippine Islands, where it is apparently 

 quite abundant. It has been recorded from the following localities : 



