80 
fam. Sergestidae. 
1852. Sergestidae. Dana, U.S. Expl. Exp., Vol. XIII., p. 601. 
1876. Sergestiden. Claus, Untersuch. Crustaceen-Systems, p. 35. 
1881. Sergestidae. Bate, Ann. Nat. Hist., Ser. 5, Vol. VIII., pp. 
L71,.5O3- 
1882. Sergestidae. S.1. Smith, Bull. Mus. Comp. Zool. Harvard, 
Vol. X.,-p. 96: 
1888. Sergestidae. Bate, Challenger Macrura, Reports, Vol. 
XXIV., p. 345. 
1889. Sergestidae, Chun, Sitzungsber. K. Preuss. Akad. Wiss., 
P- 347 (537). 
1891. Sergestidae. Wood-Mason and Alcock, Ann. Nat. Hist., 
Ser. 6., Vol. VII., p. 190, and Vol. VIII., p. 353. 
1893. Sergestidae. Stebbing, History of Crustacea, p. 221. 
1893. Sergestidae, Ortmann, Decap. und Schizop. Plankton— 
Exp:; p20: 
1895. Sergestidae. Faxon, Mem. Mus. Comp. Zodl. Harvard, 
Vol. XVII. p. 208. 
1896. Sergestidae. H. J. Hansen, Proc. Zool. Soc. London, p. 
936. 
1898. Sergestidae. Ortmann, in Bronn’s Thierreich, Vol. V., 
Lieferung 50, p. 1121. 
1gor. Sergestidae. Alcock, Indian Macrura and Anomala of the 
Investigator, p. 47. 
1903. Sergestidae. Hansen, Proc. Zool. Soc. London, p. 52. 
For a clear understanding of the present state of science in 
regard to this family, Hansen’s two papers above cited are of 
primary importance. Ortmann, defining it in 1898, rightly 
speaks of the chelate structure as more or less reduced, but gives 
rather a wrong impression, when he goes on to say that it is 
‘‘almost entirely suppressed on the first and second pairs of 
peraeopods,” and that “on the third pair the chela is minute 
or there also entirely wanting.” But in the dominant genus 
Sergestes the first peraeopods have no chela, while the second 
and third pairs are on a level, both possessing chelae, though 
minute ones. 
Gen. Sergestes, Milne-Edwards. 
1830. Sergestes, Milne-Edwards, Ann. Sci., Nat., Vol. XIX., p. 
348 (in French, Sergeste, p. 346). 
1831. Sergestes. Latreille, Cours d’Entomologie, p. 384. 
