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



in that position. Bate says that the stouter flagellum of the first antennae is 

 " divided into about ten or twelve articuli," which agrees with the Scotia specimen, 

 that having eleven joints in one member of the pair and twelve in the other ; but in 

 both, contrary to Bate's figure, the two terminal joints are narrow, these and the 

 preceding joint being without filaments. Dana describes this flagellum as five- or 

 six-jointed, and figures it accordingly. He assigns twelve to fourteen joints to the 

 longer flagellum, Bate gives it twelve or fifteen, and our specimen shows seventeen. 

 Dana gives the length as varying from three-quarters of an inch to an inch, and this 

 agrees with the Scotia specimens. 



Localities.— Gutt weed, lat. 18° 43' N., long. 27° 46' W. ; 27° 23' N., 33° 06' W. ; 

 32° 11' N., 34° 10' W. ; Stations 532, 536, 538. 



Genus Latreutes, Stimpson. 



1860. Latreutes, Stimpson, Pr. Ac. Sci. Philad., vol. xii. p. 27 (96). 



1888. ,, Bate, Rep. Voy. " Challenger," vol. xxiv. pp. 576, 581. 



1890. „ Ortmann, Zool. Jahrb., vol. v. p. 505. 



1893. „ Stebbing, Hist. Crust., Internat. Sci. Ser., vol. lxxiv. p. 234. 



1893. ,, Ortmann, Ergelm. Plankton-Exp., vol. ii. G. b., p. 47. 



1901. „ Rathbun, U.S. Fish. Comm. for 1900, vol. ii. p. 114. 



1906. ,, Caiman, Ann. Nat. Hist., ser. 7, vol. xvii. pp. 31, 33. 



1907. „ de Man, Tr. Linn. Soc. London, vol. ix. part xi. p. 421. 

 1914. ,, Balss, Abhandl. K. Bayer. Ak. Wiss., vol. ii. part x. p. 46. 



Ortmann and Calman include part of Bate's genus Platybema under Latreutes, 

 and Bate's Platybema rugosus is transferred by Calman to a new genus Trachycaris 

 on the ground that Platybema was nullified through Bate's erroneous supposition 

 that de Haan's planirostris was in generic agreement with rugosus. Had he left 

 de Haan alone, his genus would have been unimpeachable. According to Ortmann, 

 1893, confirmed by Calman, 1906, Stimpson was in error in attributing an epipod to 

 each of the first four peraeopods instead of only the first three. It may be noticed 

 also that Milne-Edwards, in describing the type species, assigns only two subdivisions 

 to the wrist of the second perseopods, whereas there are three. 



Latreutes fucorum (Fabricius). 



1798. Palxmon fucorum, Fabricius, Suppl. Ent. Syst., p. 404. 



1837. Hippolyte ensiferus, Milne-Edwards, Hist. Nat. Crust., vol. ii. p. 374. 



1852. ,, ,, Dana, U.S. Expl. Exp., vol. xiii. p. 562. 



ferus, Stimpson, Pr. Ac. Sci. Philad., vol. xii. p. 27 (96). 



Bate, Rep. Voy. " Challenger," vol. xxiv. p. 583, pi. civ. fig. 1, d-i, k-m, q. 



Ortmann, Zool. Jahrb., vol. v. p. 507. 



Ortmann, Ergebn. Plankton- Exp., vol. ii. G. b., pp. 47, 60. 



Kathbun, U.S. Fish. Comm. for 1900, vol. ii. p. 114. 



Caiman, Ann. Nat. Hist., ser. 7, vol. xvii. p. 33. 

 1910. Hippolyte ensifera, Stebbing, Ann. S. Afr. Mus., vol. vi. part iv. p. 390. 



Bate says: " Palsemon fucorum, Fabricius (Suppl. Entom. Syst., p. 404), un- 

 doubtedly belongs to this genus." He was deterred from identifying it with the 



1860. 



Latreutes ensift 



1888. 



n n 



1890. 



)> 51 



1893. 



•1 1! 



1901. 



)) !) 



1906. 



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