History of British' Entomostraca. 1 37 



Sp. XIII. Cypris elongata.— Fhte V. Fig. 13. Testa alba, 

 cuneiforme, elongata. 



Habitat. Yetholm, Roxburghshire. 



Synon. Cypris elongata, Baird, Trans. Berw. Nat. Club, p. 99, pi. iii. f. 10. 



" Shell much broader at anterior than posterior extremity, which 

 is narrow and much elongated ; elevated on upper margin towards 

 anterior extremity, and sinuated on under margin more towards the 

 posterior extremity : white ; transparent ; hairy ; setae of antennae 

 five or six ; anterior feet furnished with setee." 



Sp. XIV. Cypris Westwoodii. — Plate V. Fig. 14. Testa reni- 



formi, viride, conica. 

 Habitat. Yetholm Loch, Roxburghshire. 

 Synon. Cypris Westwoodii, Baird, Trans. Bew/Nat. Club, p. 99, pi. iii.f. 12. 



" Shell much elevated and rounded on upper margin, and reni- 

 form on under — a little broader at anterior extremity ; green co- 

 loured ; semitransparent ; densely covered with pretty long hairs 

 all over ; second last joint of anterior feet furnished with a pencil 

 of long hairs ; posterior feet furnished with a setae at each articula- 

 tion." 



Sp. XV. Cypris gibbosa. — Plate V. Fig. 15. Testa rotundo- 

 ovata ; reniformi, gibbosa. 



Habitat. Ditch near Surrey Zoological gardens, London. 



Shell roundish ovate : elevated on upper margin, with a gib- 

 bosity or hump ; reniform on under margin ; body of shell smooth, 

 of a light-green colour, paler on anterior extremity ; beset with short 

 fine hairs all round the edges of shell ; nearly opaque ; filaments 

 of antennae and anterior feet beautifully plumose. Double the size 

 of C. Westwoodii, to which it approaches somewhat in shape of 

 shell. 



Sp. XVI. Cypris clavata. — Plate V. Fig. 16.* Testa oblonga, 

 clavata, laevi. 



Habitat. Pond near Copenhagen Fields, London. 



Body of shell smooth and shining, but beset round margin with 

 short hairs ; of a light grey colour, with an obscure dark-coloured 

 ray running from centre towards posterior extremity, which again 

 is distinctly marked with an orange-coloured spot, oblong, narrower 

 lit posterior than anterior extremity, which is rather flattened, mid- 

 dle of valves ventricose ; antennae and feet^rather short in compari- 

 son with size of shell, filaments of both plumose. This species ap- 



