AN OLD NAME REJECTED 415 



Argeia, Dana, 1852. In the female the side-plates of 

 the segments are developed into long lobes, but without 

 adhesive processes. The pleopods are short, not ramified. 

 In the male the pleon is unsegmented, and without ap- 

 pendages. 



Argeia 'purjettensis^ Dana, 1852, in Grangon munitus. 



Argeia depaiqoerata, Stimpson, 1857, in Grangon Fran- 

 cisGorum^ from San Francisco Bay. 



Bojn/rus, Latreille, 1804. In the female the bound- 

 aries of the pleon-segments are not visible in the centre of 

 the back ; the pleopods are pairs of simple rudimentary 

 plates. In the male the pleon has no lateral appendages. 

 Leach, in the Appendix to his 'Crustaceology,' 1814, makes 

 the strange remark that ' the genus Bopgrits is to be 

 altogether rejected from this article, as it belongs to the 

 class Vermes.' 



Giard and Bonnier give up the old name Bopyrus squil- 

 larum, Latreille, 1804, on the ground of the inextricable 

 confusion of the synonymy, Latreille's squillarum having 

 been indiscriminately applied to various species, and not 

 being the oldest name, since the misleading crcmgormn of 

 Fabricius dates from 1798, and Latreille himself appears 

 to have confounded Leander serratus (Pennant) and Leander 

 squilla (Linn.), so that, to start with, the name of the host 

 is as uncertain as the name of the parasite. 



Bopyrus Helleri, Giard and Bonnier, 1890, in Leander 

 squilla (Linn.), may, notwithstanding the above arguments, 

 be thought deserving of the old name squillarum. 



Bopyrus Fougerouxi, Giard and Bonnier, 1890, in Lean- 

 der serratus (Pennant), from which the ^Bop>yrus siiuiUarum^ 

 of the ' British Sessile-eyed Crustacea' was obtained. 



Bopyrus Rathkei, Giard and Bonnier, 1890, in Paloimon 

 rectirostris, Zadd ach . 



Bopyrus treillianiis, Giard and Bonnier, 1890, in Palce- 

 mon treillianus.^ Risso. 



Bopyrus xipliias^ Giard and Bonnier, 1890, in Pakemoii 

 xipMas, Risso. 



Bopyrus paloemonis, Risso, a doubtful species in Alpheus 

 sp. (?) 



