phoxus. 173 



Kroyera carinata, Spence Bate. — The joints from the 

 sixth to the tenth from the head strongly keeled. 

 Banff (Mr. Edwards). 



Gen. 7] . PHOXUS, Kroyer. 



Head produced into a beak; upper antennae with two 

 terminal filameuts ; mandible with a palpus ; jaw-feet sub- 

 cheliform ; last pair of legs very small. 



Phoxus Kroyerii, Spence Bate. — Upper antennae reach- 

 ing scarcely beyond the end of the beak; lower antennae 

 much longer. 



Plymouth (Mr. Bate). 



Phoxus Holbolli, Spence Bate. — The peduncle of the 

 upper antenna reaching quite to the end of the beak ; the 

 lower scarcely longer than the upper. 



Plymouth (Mr. Bate). 



Phoxus plumosus, Holboll. — Upper antennae reaching 

 beyond the lower; the penultimate segment of the pe- 

 duncle of the lower produced below into a scale-like pro- 

 cess ; hair on the animal plumose. 



Plymouth (Mr. Bate). 



