I 



16 THE ENTOMOSTRACA OE 



than swimming in the water and crawling on the weeds. Hence it has escaped 



observation to some extent, and is not noticed in Dr. 

 Baird's ' History of the British Entomostraca.' In its 

 love of the mud and habit of crawling, it so much 

 resembles the Candona that I have been anxious to 

 verify Dr. Ramdohr's description of the species ; and 

 I find that it truly possesses the pencilled tufts charac- 

 teristic of the genus Cypris. See Woodcut, fig. 1- 

 1. Cypris gibba. (See also the figures by Fischer, Koch, &c.) 



aa. Upper pair of antenna. Cypris yibba occurs fossil in the Peat-marl of Cam- 



bb. Lower or pediform antennae. , . , , . , ~ r , .. , , , 



c. First pair of feet. bndgeshire before referred to (where, however, only 



young specimens were met with) ; in a Pleistocene deposit at Wear Farm, near the 

 Reculvers, described by Mr. Prestwich in the ' Quart. Journ. Geol. Soc.,' xi, p. 112; 

 and plentifully in the fluviatile deposits of Grays and Clacton, in Essex. 



From the association of a few marine or estuarine fossils (Balanus and Globulind) 

 with C. glbba in the Pleistocene sands near the Reculvers, it appears that this species 

 can inhabit brackish water. 



Genus — Candona, Baird. (Cypris, Auctorum.) 



Animal creeping ; (inhabiting fresh water and found on or in the mud ; generally 

 larger than Cypris;) eye single (coalesced); the upper pair of antenna? plumed; the 

 lower pair plumeless, merely setiferous and hooked. 1 Carapace like that of Cypris. 



No. 1. Candona reptans, Baird. Plate I, figs. 7 a — 7 e. 



Candona reptans, 2 Baird. Hist. Brit. Entom., p. 1G0, t. 19, fig. 3. 



— — Jones. Annals and Mag. Nat. Hist., 2d ser., vi, p. 27, t. 3, fig. 7. 



Cypris reptans, Liljeborg. Pe Crustaceis, &c, p. 123, t. xi, figs. 21 — 23; t. xii, figs. 7 — 9. 



INCH. 



Length, -^ Recent : Britain ; Europe. 



Post-tertiary : Berkshire ; Cambridgeshire ; Lincolnshire ; Essex. 

 Pleistocene : Essex. 



1 According to Liljeborg, in the species which he refers to Candona the second pair of maxillae are 

 without branchial appendages. 



2 Leach's Cypris viridis (' Edinb. Encycl.,' t. 221, fig. 2), and C. nephroides (' Encycl. Brit. Suppl.,' 

 20, figs. 1, 2), somewhat resemble Candona reptans (as pointed out to me by Dr. Baird) ; but it is 



impossible to come to a satisfactory determination from Leach's figures and notes. 



