50 BRITISH ENTOMOSTRACA. 



Hitherto it had been described either as the Cancer 

 salinus or the Gainmarus salinus, according as authors 

 chose to adopt the name given to it by Linnaeus or 

 Fabricms. Latreille, however, in the first edition of 

 ' Cuv. Regne Anim.,' 1817, describes it as a species of 

 Branchipus, referring it correctly to the Phyllopoda ; and 

 Leach, in the 'Diet. Sc. Nat./ 1819, following up the 

 arrangement, founded the genus Artemia to receive it, 

 in which it has remained ever since. 



More recently the Artemia salina has been studied with 

 care by Mr. Thompson, who, in the fifth number of his 

 'Zoological Researches,' 1834, informs us he received 

 some specimens of it from Lymington, and though the 

 adults all died, he succeeded in hatching the ova con- 

 tained in the brine, and bringing the young to maturity. 

 He readily distinguished the male from the female, and 

 has given a number of figures, illustrating the anatomy of 

 the adult animal, and the various changes which the young 

 undergo in their progress to maturity. 



More lately still, M. Joly, of Montpellier, having found 

 the species abundant in the salt-marshes in that neigh- 

 bourhood, and more especially in the salt-pits or reservoirs, 

 has devoted much attention to its study, and published a 

 lengthened description of its anatomy and habits in the 

 ' Ann. Sc. Nat./ 1840. It seems curious, however, that 

 he does not appear ever to have seen the males, and even 

 asserts that Schlosser must have mistaken the young in- 

 sect for the male, and that the horn-like antennae, which 

 he describes, must have been the provisional feet of the 

 young before they had assumed the adult form. Appa- 

 rently he had not seen the memoir of Thompson. In other 

 respects his paper contains the fullest description, with the 

 most copious and most accurate account of the manners 

 and habits of this little creature, that has been published, 

 and is concluded by a lengthened disquisition as to the 

 cause of the red colour which frequently distinguishes 

 them, and which tinges the whole water in which they 

 occur with the same hue 



