Land, Fresh- Water, and Marine Crustacea. 315 



estuary. As the colour of these Copepods is bright red they 

 are easily noticed, but the colour quickly disappears when 

 they are preserved in alcohol. 



Genus (40) Rhynchothalestris, G. 0. Sars, 1905. 



76. Rhynchothalestris rufocincta (Norman). 



1880. Thalestris rufocincta, Norman (MS. name), in G. S. Brady, 



I. c, vol. ii. p. 125, pi. lvii. figs. 1-9. 

 1905. Rhynchothalestris rufocincta, G. O. Sars, Crust, of Norway, 



vol. v. p. 120, pis. lxxiii., lxxiv. 



Hah. — In pools between tide- marks about Joppa and 

 GL-anton, 1887, frequent, and subsequently in various other 

 parts of the estuary, but more common in the littoral zone 

 than in deep water. 



77. Rhynchothalestris helgolandica (Claus). 



1863. Thalestris helgolandica, Claus, I. c. , p. 131, pi. xvii. tigs. 



12-21. 

 1880. ,, ,, G. S. Brady, I. c, vol. ii. p. 123, pi. 



lxi. figs. 9-14. 

 1905. Rhynchothalestris helgolandica, G. O. Sars, Crust, of Norway, 

 vol. v. p. 121, pi. lxxv. 



Hah. — Washed from some seaweed obtained while dredg- 

 ing in Largo Bay in April 1891. Also obtained in dredged 

 material collected off the north-east end of Inchkeith in 

 May 1901. 



Genus (41) Microthalestris, G. O. Sars, 1905. 

 78. Microthalestris forficula (Claus). 



1863. Thalestris forficula, Claus, I. c, p. 131, pi. xvii. figs. 7-12. 

 1894. ,, forficuloides, T. and A. Scott, Ann. and Mag. Nat. 



Hist. (6), vol. xii. p. 142, pi. ix. figs. 4-9. 

 1905. Microthalestris forficula, G. O. Sars, I. c, vol. v. p. 123, pi. 

 lxxvi. 



Hah. — In pools near low-water between Leith and Porto- 

 bello, not very common. The part of the shore where the 

 specimens were chiefly obtained was opposite Seafield, where 

 there is a good deal of mud. 



VOL. xvi. 2 F 



