IN NORTHUMBERLAND AND DURHAM. J45 
in supplying food to the vast shoals of herrings and other gre- 
garious fishes, and in aiding to produce the phosphorescence of 
the sea, all contribute to place the history of these minute Crus- 
tacea among the most interesting of scientific investigations. 
The number of species included among the Entomostraca is 
certainly not large, but there cannot be a doubt a great many 
additional forms would be found in our island if they were pro- 
perly looked after. During the past year the researches of 
myself and of those friends who are kindly assisting me in pre- 
paring material for a catalogue of the Crustacea of our district 
have been rewarded by the discovery of several species new to our 
Fauna. Those from among them which belong to the family | 
Cypride, I am now about to describe. 
Fam. Cypride. 
Subfam. I. Cyprina, Dana. 
Genus Cypris, Muller. 
1. *Cypris PUNCTILLATA, n. sp. (Pl. III. figs. 11-14.) 
Forma subovalis; altitudo maxima ante medium sita; 
-margo dorsalis valde arcuatus, ventralis in medio 
incurvatus. Forma desuper spectata ovato, in medio 
latissima, extremitates versus eodem modo parum 
attenuata. Latitudo altitudoque fere equales. Basis 
lata, ad extremitates convexa, trans medium im- 
pressa atque concava. Valvarum superficies undique 
pilis obsita, cellulisque rotundatis numerosissimis 
excavata, antice et postice aculeis fimbriata. Margo 
valvarum interior antice et postice latus, lamellosus ; 
lamella sulco profundo excavata. Color saturate 
viridis. Long. .4 unc.; alt. s& unc. 
Habitat stagna limpida prope Sedgefield in regione 
Dunelmensi. 
Carapace subobovate; dorsal margin boldly arched; ventral 
margin incurved centrally; the highest part of the valves situ- 
ated a little before the middle. Surface everywhere clothed 
with long hairs, and sculptured with closely arranged roundish 
* These descriptions are published also among my “ Contributions to British Carcinology.” 
in the Annals of Natural History for the present month.—January, 1862. 
NOI Wo ENS 0G Q 
