6G lil'.lTISH ENTOMOSTKACA. 



Goeze, in the ' Naturforscher,' 1775, describes the 

 same species, under the name which Swaininerdam had 

 given to it, the Pulcx arborescens ; and Sulzer, in his 

 ' Abjekiirzte Geschichte der Insectcn,' 1776, gives a very 

 indifferent figure of what he calls Monoculus jjft/r.r, but 

 \\ hich is evidently the Da^lmia r<-//tla. 



M filler, in his paper on the Cypris, in the ' Philoso- 

 phical Transactions' for 1771, has enumerated several 

 species of Daphuia as occurring in Norway and Denmark, 

 but under the general name of Monoculus. In 1776, 

 however, he established the genus Daplmc, in his 'Zoologize 

 Danicse prodromus,' and enumerated eight species, only 

 three of which had ever been noticed before his time. 

 In his ' Entomostraca,' 1785, he adds one other species, 

 gives figures of all the nine, and a lengthened description 

 of each. He changes the generic name from Daphne to 

 Daphnia, which latter name has been adopted by suc- 

 ceeding authors, and alters the specific names of two 

 species, though without good reasons for doing so. 



De Geer, in vol. vii of his * Memoires pour servir a, 

 1'Histoire des Insectes,' 1778, gives a good many details 

 concerning this family, pointing out two or three errors 

 into which Swammerdani had fallen, and giving \ery 

 accurate descriptions of SOUK; portions of their anatomy. 

 He describes at length, and figures very nicely and \\itli 

 considerable faithfulness, four different species, two of 

 which, previous to this, had only been noticed by Muller, 

 in his ' Zoolog. Dan. prodrom.' 



Blumenbach, in his ' Handbuch der Naturgeschichte,' 

 1770, mentions one species, they;///-",/'; and Eichhorn, 

 in his ' Beytrage zur Naturgeschichte der kle'mslrn 

 Wasserthiere,' 1781, gives a tolerable figure of the same 

 species. 



< iinelin, in his edition of the ' Systema Natnne,' 1783, 

 gives all llie nine species of M filler, and adds to them the; 

 Monofuliix ])<'(/i<-i'//ix, which Miiller had already formed 

 into a genus by itself, the Poll/ /tin' mnx. 



Manuel, in the 'Encyclopedic methodique,' 



