BRANCHIPODIDiE. 261 



Montagu describes the upper pair of antennae, when the 

 Nebalia moves, to be in constant motion, as well as the ab- 

 dominal feet, while the lower pair are usually motionless 

 and brought under the body. 



Gen. 137. NEBALIA, Leach. 



Nebalia bipes, O. Fabr. sp. — Body ovate, of a pale- 

 yellow colour ; lower antennae as long as the body. 



Length three- eighths of an inch. 



Hab. Devonshire, west coast of Ireland, Shetland Islands. 

 (Baird, 1. c. p. 38.) 



Otho Fabricius says that the female carries her eggs 

 beneath the thorax during the whole winter ; these begin 

 to hatch in April, and appear in May, when they are very 

 lively, and adhere to the mother. The adult is not very 

 active. On our coast they are found under stones, lying 

 on mud amongst hollows of rocks. 



Fam. BUANCEIPOBIBjE, Baird. 



The body without carapace ; two pairs of antennae, the 

 lower in the male prehensile ; the eyes two, on peduncles (in 

 the young there is but one eye) ; eleven pairs of feet, all 



