612 THE VOYAGE OF H.M.S. CHALLENGER. 



Remarks. — This species bears a close resemblance to that which Kroyer described 

 as Anonyx lagena, Anonyx aiopendiculosa and Anonyx amindla, and which Phipps had 

 already described as Cancer nvgax. Kr0yer gave the name ampulla under the erroneous 

 impression that his species was identical with Phipps' Cancer ampulla, and described it 

 with exact detail in his Naturhistorisk Tidsskrift, 2. R. i. 578-599. Though the name 

 ampulla is untenable for KrOyer's species, attention is well called to his admirable 

 description of it by the name given to the present kindred species. Anonyx ampulloides 

 differs from Anonyx nugax in that the eyes are not lageniform, flask-shaped ; the apical 

 border of the palp in the first maxillse is peculiarly divided ; the inner ramus of the 

 second uropods is not stiliform, but bent on one side and abruptly narrowed on the 

 other ; and in other small details. 



In the British Museum Catalogue of Amphipodous Crustacea, it is represented 

 on pi. xii. fig. 8, and the following account is given : — 



" Anonyx ampulloides, Stimpson, MS. 



"In general aspect this species resembles Anonyx lagena.; but close examination 

 shows the following distinctions : — 



" The inferior antennae are much longer than the superior. The first pair of 

 gnathopoda have the palm fringed with fine hairs, but not a comb-like margin. The 

 second pair of gnathopoda have the carpus slight, and much longer than the propodos ; 

 the dactylos quite rudimentary. Telson deeply divided, becoming almost a double 

 appendage. 



" Length half an inch. 



" I am indebted for this specimen to the kindness of the author, who brought it from 

 Japan." 



As I had myself chosen the name ampulloides for this Japanese species, before 

 observing its resemblance to the figures, in Mr. Spence Bate's Catalogue, of the species 

 no called by Stimpson, the identification seems fairly to be depended upon. 



Anonyx cicadoides, n. sp. (Pis. IV., V.). 



Rostral Margin forming an obtuse but definite angle ; the lobe of the head between 

 the upper and lower antennae rounded above and straight below. The three hinder 

 perseon-segments longer than those which precede, but much shorter than the three 

 segments of the pleon which follow them ; the fourth segment of the pleon with a dorsal 

 depression near its origin ; the fifth and sixth segments very small, the sixth with a 

 dorsal ridge or fold along either side of the back ; the infero-posterior angle of the third 

 pleon-segment much produced upwards. 



Eyes not made out ; in one of the specimens appearances suggest that they have 

 been present, of a long oval shape, near the front of the head. 



