330 CRUSTACEA OF NORTHUMBERLAND AND DURHAM 



1901. Bosmina obtusirostris, Lilljeborg, I.e., p, 237, 



pi. xxxii., figs. 4-13, pi. xxxiii., figs. 1-12, pi. xxxiv., 



figs. 1-12, pi. xxxv., figs. 1-9, pi. xxxvi., figs. 1-12, 



pi. xxxvii., figs. 1-7. 



Tarns on the Humbles, Northumberland (G. S. B.) N. 



Fam. 3.— MACROTHRICID^ 



Ilyocryptus soRDiDUS (Licvin). 



1863. Acantholeberis sordida, Norman, Ann. and Mag. Nat. 



Hist., ser. 3, vol. ii., p. 4 (separate copy), pi. xi., 



figs. 6-9; and Tyneside Nat. Field Club, vol. vi., p. 55, 



pi. vi., figs. 6-9. 



1867. Ilyocryptus sordidus, Norman and Brady, I.e., p. 368. 



Eastern lake at Belsay, and diteh on the south side of the 

 railway between Hexham and Corbridge (G. S. B.) ; pond of 

 the deserted colliery at Bishop Middleham, and in the Forge 

 Dam at Sedgefield (A. M. N.) N.D. 



Macrothrix laticornis (Jurine). 



1867. Macrothrix laticornis, Norman and Brady, I.e., 



p. 360, pi. xxiii., figs. 4, 5. 



1901. Macrothrix laticornis, Lilljeborg, I.e., p. 338, pi. liv., 



figs. 6-13. 



East lake at Belsay, Northumberland, at Fardingslake, and 



in the Glebe Engine Pond, Sunderland (G. S. B.). All these 



localities are now either built over or otherwise spoiled. N.D. 



Macrothrix hirsuticgrnis Norman and Brady. 



1867. Macrothrix hirsuticornis, Norman and Brady, I.e., 



p. 361, pi. xxiii., figs. 6, 7. 

 1 90 1. MacrotJirix hirsuticornis, Lilljeborg, I.e., p. 346, 

 pi. Iv., figs. 6-14. 

 The types of this species were taken by G. S. B. in 1864 

 in a slow -running stream at Ashburn, Sunderland. D. 



Drepanothrix dentata (H. a. Euren). 



1867. Drepanothrix haniata, Brady and Norman, I.e., 

 p. 264, pi. xxii., figs. 5-7. 



