History of British Entomostraca. l''3'3 



" Shell^subovate, glabrous, ciliated at the margin, sublinear at 

 ■aperture. Valves rather convex, brown, with three white fasciae 

 — the posterior one lunated, middle one oblique, anterior one arched 

 — or, it may be described, valves white on dorsal margin, bound by 

 a brown belt, with two oblique brown spots in the disc." — Muller. 



Sp. IV. Cypris vidtia, Plate V. Fig. 1 . Testa subglobosa, fas- 

 ciis tribus nigris transversis instructa. 



Habitat. Pond at Greenwich. Canal at Rugby, Warwickshire. 

 Synonimes, Cypris vidua, Muller, Zool. Dan. prod. p. 199, No. 2384. 1776. 

 Cypris vidua, Muller, Entomost. p. 55, tab. iv. fig. 7-9. 1785. 

 Men. vidua, Gmelin, Syst. Nat. 3002, No. 42- 1788. 

 Mon. vidua, Manuel, Encyc. Method. Hist. Nat. Tom. vii. p. 726, No. 36, pi. 



264. f. 24-6. 1792. 

 Mon. viduatus, Fabricius, Entom. Syst. Tom. ii. p. 496. 1793. 

 Cypris vidua, Latreille, Hist. Nat. Gen. et Part, des Crust. &c. Tom. iv. p. 245. 



1802. 

 Mon. vidua, Rees' Cyclopedia, Art. Monoculus. 1819. 

 Mon. vidua, Jurine, Hist, des Monoc. &c. p, 175, pi. 19, fig. 5-6. 1821. 

 Cypris vidua, Desmarest, Cons. Gen. sur les Crust, p. 385. 1825. 



Neither the figure given by Muller, nor that by Jurine, is quite 

 correct. The shell is of a somewhat globular form, a little sinuated 

 on under margin ; beset all round with dense, fine, short hairs ; of 

 a dull white colour, very distinctly marked by having three black, 

 somewhat zig-zag fasciae, running transversely across the shell, the 

 most anterior of the three being the smallest. The posterior mar- 

 gin is rather narrower than the anterior, ("though Muller makes it 

 the contrary,) but not so much so as is represented by Jurine. An- 

 terior feet provided with long filaments. 



Sp. V. Cypris Monacha, Plate V. Fig. 2. Testa antice trun- 

 cata, albo et nigro notata. 



Habitat — Old Canal near Rugby, Warwickshire — Newham Loch, Northum. 

 berland — Dr Johnston. 

 Synonimes, Cypris monacha, Muller, Zool. Dan. prod. p. 199, No. 2390. 1776. 

 Cypris Monacha, Muller, Entomostraca, p. 60, tab. v. fig. 6-8. 1785. 

 Monoc Monachus, Gmelin, Syst. Nat. 3003, No. 44. 1788. 

 Mon. Monachus. Manuel, Encyc. Method. Hist. Nat. Tom. vii. p. 727, No. 41, 



pi. 266, f. 34-P. 1792. 

 Mon. Monachus, Fabricius, Entom. Syst. Tom. ii. p. 497. 1793. 

 XHypris Monacha, Latreille, Hist. Nat. Gen. et Part, des Crust. &c. Tom. iv. p. 247. 



1802. 

 Monoc. Monachus, Fees' Cyclop. Art. Monoculus. 1819 



Monoc. Monachus, Jurine, Hist, des Monocles, &c. p. 173, pi. 18, f. 13-14- 182L 

 Cypris Monacha, Desmarest, Cons. Gen. sur les Crust, p. -384, pi. 55, f. 7. 1825. 



VOL. II. NO. 8. K 



