286 REV. T. R. R. STEBBING ON STALK-EYED CRUSTACEA MALACOSTRACA 



Tribe CARIDEA. 



1852. Caridea (part), Dana, U.S. Expl. Exp., vol. xiii. p. 528. 



Family Pal^emonid^e. 



1819. Palxmonidx (part), Leach, in Samouelle's Entomologist's Compendium, p. 96. 



1852. Palsejiioninse (subfam.), Dana, U.S. Expl. Exp., vol. xiii. p. 569. 



1888. Palsemonidiv, Bate, Rep. Voy. " Challenger," vol. xxiv. pp. 711, 778. 



1890. ,, Ortniaun, Zool. Jahrb., vol. v. p. 512. 



1894. ,, Alcock and Anderson, J. Asiat. Soe. Bengal, vol. lxiii. part 2, No. 3, p. 17. 



1897. ,, Ortmann, Revista do Mnseo Paidista, N. 2, p. 186. 



1901. „ Rathbun, U.S. Fish. Coram, for 1900, vol. ii. p. 123. 



1902. ,, de Man, Abliandl. Senckenh. Gesellsch., vol. xxv. part iii. p. 763. 



1906. ,, Kemp, Fisheries, Ireland, 1905, p. 127. 



1907. ., Borradaile, Ann. Nat. Hist., ser. 7, vol. xix. p. 472. 

 1912. ,, de Man, Ann. Soc. Zool. Be/gique, vol. xlvi. p. 197. 



Those who study the authorities above cited will find that different views have 

 been and to some extent still are held as to the proper contents of this family. 

 The material, however, on this occasion at my disposal does not require, and would 

 not facilitate, any thorough discussion of the subject. 



Genus Leander, Desmarest. 



1849. Leander, Desmarest, Ann. Soc. Entom. France, ser. 2, vol. vii. pp. 87, 91. 



1860. „ Stimpson, Pr. Ac. Sci. Philad., vol. xii. p. 40 (109). 



1888. ,, de Man, Arch. Naturg., vol. liii. p. 559. 



1888. Palsemon, Bate, Rep. Voy. " Challenger," vol. xxiv. p. 781. 



1890. Leander, Ortmann, Zool. Jahrb., vol. v. p. 513. 



1893. ,, Stebbing, Hist. Crust., Internat. Sci. Ser., vol. lxxiv. p. 246. 



1901. Paleemon, Rathbun, U.S. Fish. Comm. for 1900, vol. ii. pp. 123, 125. 



1906. Leander, Kemp, Fisheries, Ireland, 1905, p. 127. 



Leander squilla (Linn.). 



1758. Cancer squilla, Linn., Systema Naturae, ed. 10, p. 632. 



1798. Paleemon squilla, Fabricius, Suppl. Eat. Syst., p. 403. 



1884. Leander squilla, Czerniavsky, Mat. zoogr. Pont, comp., fasc. ii. p. 48 (with synonymy). 



1890. ,, „ Ortmann, Zool. Jahrb., vol. v. p. 522, pi. xxxvii. fig. 15. 



1906. „ „ Kemp, Fisheries, Ireland, 1905, pp. 129, 132, pi. xx. fig. 3, a-e. 



Czerniavsky supplies a vast bibliography and names two varieties. Kemp gives 

 a synoptic view of the characters which separate this species from L. serratus 

 (Pennant) and L. adspersus (Rathke). In the latter two the palp of the mandible is 

 three-jointed, while in L. squilla, as discovered by Calman, it is two-jointed, a 

 feature which it shares with L. tenuirostris (Say). The rostrum is armed above with 

 from seven to ten teeth, below with three, or rarely two or four, and has a bifid apex. 

 The telson agrees with that described later on for L. affinis. In the first antennae 

 the shortest fiagellum has the number of free joints subequal to that of the coalesced, 

 in the specimen examined the number being in each case eleven, and the two sets 

 equal in length. Kemp speaks of the shorter ramus as fused to the longer for about 



