26 



compressis, articulo secundo lato apice acuminata, basalt uni- 

 dentato ; segmento caudali setigero ; ovario quadrilaterali. 



Long. 6 lin. 



Pro Synonymis vide "Baird's British Entomostraca," et adde : — 



Eulimene albida, Latreille, Nouv. Diet. d'Hist. Nat. x. 535 ; Cuv. 

 Regn. An. 2nd edit. iv. 178; Desmarest, Cons. gen. Crust. 394; 

 Risso, Hist. Nat. Eur. Merid. v. 165; Lamarck, Hist. Nat. An. s. 

 Vert. 2nd edit. v. 199 (note); M. Edwards, Hist. Nat. Crust, iii. 

 371 ; White, Catalogue of Crustacea, Brit. Mus. 



Artemia Eidimene, Leach, Diet. Sc. Nat. xiv. 543. 



Hab. In salinis ad " Lymington," in Anglia ; prope "Montpellier," 

 in Gallia; in Mediterraneo, prope "Nice," &c. 



This species, which seems to have been first observed by M. 

 Schlosser, in the salt-pans at Lymington, is nearly white, slender, 

 and about half an inch in length. The abdomen is long, fully as 

 long as the body, and the caudal segment is simply divided into two 

 small lobes, which give origin to several short setae. The inferior 

 antennae in the male are divided into two articulations, the basal one 

 of which has on its inner edge at about half of its length, a short, 

 stout, conical tooth. The terminal joint is broad, bends nearly at a 

 right angle about the middle of its length, and terminates in a sharp 

 point. In the female these organs resemble closely those of the pre- 

 ceding genus. The ovarian bag is large, of a quadrilateral shape, 

 somewhat pointed at the two sides, and opens at both sides to allow 

 the ova to escape. 



The genus Eulimene was founded by Latreille to receive a small 

 crustacean which was found by M. Cuvier amongst some marine 

 animals which he had received from Nice. The chief character by 

 which he distinguished the genus was the extreme shortness of the 

 abdomen, which he considered terminated almost immediately after 

 the last pair of feet in a swollen, semiglobular lobe filled with a 

 blackish matter, and having sjiringing from it a long thread-like body, 

 of a dark colour also, and which he conjectured might be an oviduct. 

 In the British Museum are many specimens of this little animal, 

 received by Dr. Leach from M. Cuvier, and labelled by Dr. Leach 

 himself, "Artemia Etdi?nene, from Nice, given bv M. Cuvier." From 

 a careful examination of this species I consider it specifically identical 

 with the Cancer salinus of Linnaeus, the Artemia salina of Leach. 

 The specimens in the Museum are all females, and upon comparing 

 them with specimens of Artemia salina from Lymington, no differ- 

 ence is perceptible, except that the specimens from Nice are rather 

 whiter in colour and have the ovarian bag and abdomen of a darker 

 hue. It is undoubtedly this dark-coloured ovarian bag that was 

 mistaken by Latreille for the termination of the body, and the " long 

 filament like an oviduct " which springs from it, is in reality the 

 abdomen. The difference in colour evidently depends upon the food 

 of the animal, the alimentary canal of the specimens from Nice being 

 filled with a dark -coloured matter, thus giving the abdomen a blackish 

 hue, while those from Lymington have the canal filled with matter 

 of a brownish tint. In the second edition of the ' Regne Animal,' 



