CRUSTACEA OF NORTHUMBERLAND AND DURHAM 375 



TiSBE FURCATA (Baird). 



1850. Canthocamptus fnrcatits, Baird (i), p. 210, pi. xxv., 



figs. I, 2, pi. XXX., figs. 4-6. 



1880. Idya furcata, Brady (3), vol. ii., p. 172, pi. Ixvii., 



figs. I-II. 

 1906. Tisbe furcata, Norman and Scott (7). p. 183. 



A very common species in tidal pools : much less frequent 

 in the open sea. Very widely distributed, and correspondingly 

 variable in minor characteristics. N.D. 



Thalestris longimana Claus. 



1863. Thalestris longimana, Claus (2), p. 130, pi. xviii., 



figs. I-II. 



1880. Thalestris longimana, Brady (3), vol. ii., p. 136, 



pi. Ix., figs. 1-13. 



A very conspicuous species owing to its generally beautiful 



coloration, but never occurring in any great abundance. Not 



uncommon between tidemarks all along the coast. N.D. 



Thalestris brunnea G. O. Sars* 



1905. Thalestris brunnea, G. O. Sars (6), vol. v., p. 108, 



pi. Ixiii. 



Specimens taken at Roker on the roots of Laminari^e, and 



doubtfully referred by Dr. Brady to T. rnfo-violascens Claus, 



are considered by Professor Sars to belong to a species newly 



described by him under the specific name brunnea. D. 



Parathalestris Clausi (Norman). 



1905. Parathalestris Clausi, G. O. Sars (6), vol. v., p. iii, 

 pis. Ixv., Ixvi. 



Syn. : Thalestris Clausi, Brady and Norman. 



This is one of the commonest of British Harpacticidae, 

 being often found plentifully in pools of the littoral zone, as 

 well as in the open sea. N.D. 



Parathalestris hibernica (Brady and Robertson). 



1873. Tiialestris hibernica, B. and R., Ann. and Mag. Nat. 

 Hist., ser. 4, vol. xii., p. 135, pi. viii., figs. 17-19. 



