ADDITIONS TO L.M.B.C. COPEPODA. 99 



It was by no means easy to decide into which genus to 

 place this well-marked species, as it has strong points of 

 resemblance in common with the three genera, Pseudo- 

 calanus, Stephos, and Pseudocyclopia. With Pseudocyclo- 

 pia it agrees in all points excepting in the number of joints 

 in the anterior antennae, and the primary branch of the 

 posterior antennae, and, as in general appearance and in 

 the first four pairs of swimming feet, it strongly resembles 

 Pseudocyclopia, I have decided provisionally to place it 

 in that genus. Its fifth pair of feet, however, are more 

 like those of Stephos. 



In the Twelfth Annual Eeport of the Fishery Board 

 for Scotland, Mr. Thomas Scott has added a new species 

 belonging to this genus, recently found by him in the 

 Forth area. 



As the genus Pseudocyclopia forms a sort of missing 

 link between the families Calanidae and Misophriidae, 

 Scott has wisely constituted a new family, the Pseudocy- 

 clopiidae, for its reception. The species of Pseudocy- 

 clopia, described by Scott having respectively sixteen 

 and seventeen joints in the anterior antennae, he has 

 made that number a family character. The species here 

 described has, however, twenty joints in the anterior 

 antennae, and as it otherwise agrees in all respects with 

 the family characters of Pseudocyclopiidae, I would suggest 

 that the words " sixteen to seventeen jointed " be altered 

 to " sixteen to twenty jointed " as a character of this new 

 family. 



Family CyclopidvE. 



Cyclops magnoctavus, Cragin. 



One or two specimens of this brackish species were 

 found along with quantities of Temorella affinis and 

 Tachidius brevicornis in tow-net gatherings sent to me 



