102 TRANSACTIONS LIVEEPOOL BIOLOCxICAL SOCIETY. 



occurs between the 5tli and Gth joints. A long filament 

 springs from the 4th joint. Posterior antennae (fig. 5) two 

 jointed, the inner branch being composed of one joint 

 with three terminal setae. 



Hand and claw of the second foot jaw slender. First 

 joint of the inner branch of first pair of swimming feet 

 (fig. 7) about the same length as the entire outer branch, 

 the middle joint has two small setae on the inner side ; 

 the outer side of the outer joint is ciliated. Both branches 

 of the second, third and fourth feet (fig. 8) are three jointed. 

 The basal joint of the fifth pair of female (fig. 9) is triangular - 

 bearing three terminal sette : the second joint is long, slightly 

 oval, ciliated at each side and bearing four set^. The 

 fifth feet of the male (fig. 10) are very similar to those of 

 the female but are rather smaller, and not ciliated and 

 have fewer setae. The abdomen of the female is five 

 jointed, in the male four jointed. Caudal segments about 

 four times as long as broad and slightly tapering, termin- 

 ated by two long and several short setae. 



Several specimens of this species nearl}^ all females were 

 lately found in mud dredged from seven fathoms inside 

 Port Erin breakwater. Their extreme minuteness and 

 delicacy render dissection difficult and the mouth organs 

 I have not been able to make out clearly. 



Jonesiella fusiformis, Brady & Rob. (PI. XIX, lig. 8.) 



Length 1.25 nmi. Dredged off the Calf of Man in 20 

 fathoms and off' Puffin Island., 



Jonesiella hycence, Thompson, (PL XX, fig. 1.) 



Length 0.65 nnn . First dredged from steamer ' ' Hyaena ' ' 

 in Port Erin Bay, and since found there in considerable 

 number on a muddy bottom. It is described in Appendix 

 to 8rd Eeport on the Copepoda of Liverpool Bay. Proc. 

 L'pool Biol. Soc, 1888-9, Vol. Ill, p. 192. 



Bradi/a typica, Boeck. (PL XIX, fig. 8. h. c.) 



