CYPRIS. 155 



Hah. Yetholm Loch ; neighbourhood of London ; 

 Rugby, &c. ; common from May to January. 



0. CYPRIS MINUTA. Tab. XVIII, figs. 7, 8. 



Ci'PEis MINUTA, Baird, Trails. Berw. Nat. Club, i, 99, t. 3, f. 9, 1835, 

 and ii, 152 ; Mag. Zool. and Bot., i, 136, t. 5, f. 11. 

 M. Edwards, Hist. Nat. Crust., iii, 403. 

 MONOCULUS OVUM (?), Jurine, Hist. Nat. Monoc., 179, 1. 19, f. 18, 19. 



Shell oval, broader posteriorly than anteriorly, elevated 

 and rounded on upper margin, slightly sinuated on under 

 edge, of a light-brown colour, with a tinge of green. The 

 valves are smooth and shining in the centre, and beset all 

 round with short hairs. This is the smallest of all the 

 species I have yet met with, and approaches very near to 

 Monoc. ovum of Jurine, except that he says his species is 

 perfectly smooth, whereas this is beset all round the shell 

 with fine hairs. 



Hal). Yetholm ; neighbourhood of London, &c., 

 summer months. 



7. CYPRIS JOANNA. Tab. XVIII, fig. 5. 



CYPRIS JOANNA, Baird, Trails. Berw. Nat. Club, i, 99, t. 3, f. 8, 1835, 

 and ii, 152 ; Mag. Zool. and Bot., i, 136, t. 5, f. 12. 

 M. Edwards, Hist. Nat. Crust., iii, 403. 



Shell rounded ovate, narrower anteriorly than pos- 

 teriorly, of a brown colour, with an orange mark across 

 the back of shell and the lower margin. Shell beset all 

 round with rigid hairs, and covered with minute black 

 points or dots. Approaches the C. pilosa of Miiller, but 

 is smaller, and is otherwise distinguished from it by the 

 orange mark across the back, and by not being glabrous, 

 but marked all over with black, roughish-looking points. 

 It is a little longer than C. minuta. 



Had. Pool of water on one of the Laminermuir hills, 

 near Abbey St. Bathans, Berwickshire, August 1835. 



