THE BOPYRIDJE 411 



Palcegyge Sorrei, Giard and Bonnier, 1888, on the 

 freshwater species Palcemon dispar, von Martens. 



Palcegyge Sonnieri, Max Weber, 1892, on Palcemon lar y 

 Fabricius. 



Palcegyge fluviatilis, Max Weber, 1892, on Palcemon 

 lampropus, de Man. 



Palcegyge de Hani, Max Weber, 1892, on Palcemon, 

 pilimanuSj de Man. 



Palcegyge affinis (Sars, 1882), on Pandalus leptorliyn- 

 chus, Kinahan. 



Palcegyge Hoyli, Giard and Bonnier, 1890, on Pandalus 

 annulicornis (i.e. Montagm), Leach. 



Pseudione, Kossmann, 1881, has the ' maxillipeds of the 

 male quite rudimentary.' 



Pseudione callianassce, Kossmann, 1881, on Callianassa 

 subterranea (Montagu). Since Giard and Bonnier refer 

 this species to their Palcegyge, and also, as just observed, 

 look forward to a subdivision of that genus, questions of 

 priority will be best arranged by retaining Pseudione for 

 one of the sections. 



Pseudione Hyndmanni (Bate and Westwood, 1867), on 

 Eupagurus bernhardus (Linn.). This is described in the 

 'History of British Sessile-eyed Crustacea' as Phryxus 

 Hyndmanni. Moreover, the Phryxus fusticaudatus of Bate 

 and Westwood is, according to the often quoted authori- 

 ties, the phryxoid stage of the same species. By phryxoid 

 stage is meant the form of the female immediately follow- 

 ing the cryptoniscian stage. 



Pseudione Fraissei (Kossmann, 1886), on Clibanarius 

 misanthropus, Risso. 



Pseudione Dolvrni (Giard and Bonnier, 1890), on Cal- 

 lianassa truncata, Giard and Bonnier. This parasite was in 

 one instance found on each side of the host. 



Pseudione insignis (Giard and Bonnier, 1890), on 

 Municla rugosa (Fabrieius). 



Pseudione confusa (Norman, 1869), on Galathea dispersa r 

 Bate. This was erroneously assigned at first to Galathea 

 intermedia, Lilljeborg, and described by Bate and West- 

 wood as Phryxus galathece, and supposed by them to be 



