CYPRIDiE. 
143 
Desmarest, in his * Consid. gen. sur les Crust./ 1825, 
although he gives a very good account of the different 
genera, taken chiefly from Straus and Jurine, with an 
account of twenty-one species, takes no notice of him 
either; but Latreille, in the last edition of the ‘Regne 
Animal/ 1829, notices his memoir, with all due approba- 
tion, and has thus contributed much to disseminate the 
knowledge of his researches. Up to that period we know 
of no original memoir upon this genus having been pub- 
lished in this country; Leach’s article on the Crus- 
tacea, in the ‘Edinburgh Encyclopaedia/ containing no 
details whatever, and only taking notice of one or two 
species. 
In 1 835 I published a description of nine new species 
in the ‘Trans. Berw. Nat. Club / and in 1837, in the 
‘ Magazine of Zoology and Botany/ I gave two additional, 
all natives of this country. In the ‘ Transactions of the 
Entomological Society/ vol. i, Mr. Templeton has de- 
scribed two new species in the Mauritius ; and Koch, in 
the ‘ Deutschlands Crustaceen/ 1837, 1838, has described 
and figured no less than twenty-one new species, though 
I am of opinion that several of them had been previously 
described, and others are mere varieties. In 1841, Mr. 
Haldeman, in the ‘Proceedings of the Acad, of Nat. Sc. 
at Philadelphia 5 has shortly described and figured in 
outline two others, found in America. M. Lucas describes 
another found by him in Algeria. 
Anatomy and Physiology. — Ramdohr, Jurine, and 
Straus all differ in many respects in describing the ana- 
tomy of the genus Cypris, both as regards the nomen- 
clature and the use of the parts. The last author who 
has described them anatomically is M. Edwards ; and as 
his definition of the organs of locomotion, &c. are more 
consonant with our knowledge of other Entomostraca, 
we shall follow him, taking the details, however, chiefly 
from Straus, whose memoir stands pre-eminent amongst 
those of his fellow-labourers. 
