REPORT ON THE AMPHIPODA. 1567 



the third pair scarcely curved outwards, reaching a little beyond the rami of the first 

 pair, pectinate on both margins ; the much smaller outer ramus pectinate on the inner 

 margin, more than half the length of the inner ramus. 



Telson rather narrower at the base than in Lycsea vincentii. 



Length, three-tenths of an inch. 



Locality.— Station 108, August 27, 1873 ; off St. Paul's Rocks; lat, 1° 10' N., 

 long. 28° 23' W.; surface ; surface temperature, 78°. One specimen, male. 



Remark. — The specific name is taken from the place of capture. 



Lycsea pidex, Marion. 



1874. Ltjcxa pulex, Marion, Ann. d. Sci. Nat., ser. 6, t. i. p. 13, pi. ii. fig. 2. 



Locality. — Station 351, April 12, 1876 ; Atlantic, off coast of Africa ; lat, 9' 9' N., 

 long. 16° 41' W. ; surface; surface temperature, 81 0, 8. 



Remarks. — The specimen is in bad condition. The third uropods agree better with 

 those which Glaus figures for Lycsea robusta than with Marion's figure of these organs, 

 but as Claus himself regards Marion's species as the young of his own Lycsea robusta, 

 it seems correct to adopt Marion's specific name. 



Genus Paralycsea, Claus, 1879. 



1879. Parahjcxa, Claus, Die Gattungen und Arten der Platysceliden, pp. 32, 40. 



1886. ,, Gerstaecker, Bronn's Klassen und Ordnungen, Bd. v. Abth. ii. p. 486. 



1887. ,, Bovallius, Systematical List of Amph. Hyper., BLhang till K. Svensk. 



Vetensk.Akad. Handl., Bd. 11, No. 16, p. 33. 

 1887. „ Claus, Die Platysceliden, pp. 56, 63. 



For the shorter definition of the genus, see Note on Claus, 1879 (p. 493). Claus' 

 fuller description is to the following effect : — 



" The shape to a certain extent intermediate between Lycsea and Eupronoe. Anterior 

 antennae concealed in a deep frontal groove, in the male resembling those in Lycsea. 

 Hinder antenna? in the male with short thick basal joint and very long terminal joint. 

 Oral cone strongly projecting, with compact mandibles and widely divided maxillipeds. 

 Both pairs of gnathopods simple and elongate. Third perasopods elongate, with elongate 

 oval laminar first joint. Fourth perseopods much shortened, with broad almost triangular 

 laminar first joint. Fifth perseopods reduced to a narrow curved little laminar first joint, 

 succeeded by the rudimentary remnant of the limb bent hook-like. Peduncle of the 

 first pah' of uropods long and broad, that of the second pair somewhat shorter, the leaf- 

 like inner ramus coalesced with the peduncle." 



