S28 J\vnv$i^Oo»%ec«/ Societ7J».^>:'s^^^^ 



may belong. His description is as follows : — ** Cotnes cephaliques 

 sans appendice pres du cote interne de leur base, pointues au bout et 

 sans dent sur le bord externe. Abdomen lisse, nageoires caudales 

 longues et etroites. Longueur environ 15 lignes. Ilabite les eaux 

 douces aux environs d'Odessa." 



2. Cancer paludomis, Miiller, Zool. Dan. ii. 10. t. 48. f. 1-8; 

 Herbst, Krabben, ii. 118. t. 35. f. 3-5. 



Most authors have assumed this species to be the same as the 

 Chirocephalus diaphanus. As M. Milne-Edwards very properly 

 observes, however, the figure of this species given by Miiller shows 

 no appearance of the complicated apparatus belonging to the male 

 antennae of Chirocephahis. There does not appear either to be any 

 antenniform appendage belonging to them, as in the genus Branchi- 

 pus, and the structure of the antennae themselves removes it also 

 from the genus Streptocephalus. ^ 



3. Some fragments of a species of Branchipode were brought byf 

 Sir John Richardson from Cape Krusenstern in N. America, col- 

 lected there l)y Mr. J. Rae in August 1849, along with the Apus 

 glacialis. They consist of portions of two males and two females. 

 The male antennse are two-joint?d ; the basal joint is thick, and has 

 at its lower part near its junction with the second a row of small 

 teeth ; the second joint is cylindrical and pointed. The female horns 

 or antennae are flat apparently, and have a short hooked spine at the 

 extremity. The caudal fins are rather long and fringed with long 

 cilia. In some respects this species resembles the figure of the Cancer 

 paludosus of Miiller, but the fragments are too much decayed in the 

 spirits to enable me further to describe it. It does not appear to 

 have either antenniform appendages or any apparatus attached to the 

 antenn£e of the male. . : -ii J 



Should these three species prove to be distinct, they may forod 

 another genus of this family, characterized by the want of these ap-f 

 pendages and the toothed or serrated basal joint of the male cephalia 

 horns. it 



Genus Streptocephalus ? *^ ^ -^'^^ 



2^ flu ^ j.x>f-ff:ijfT--r 



- 4. A figure of a species of Branchipode was exhibited at a meeting 

 of the Zoological Society by Dr. Nicholson in February 1851. The 

 figure was not sufficiently accurately made to enable the species or 

 genus to be made out. In all probability, however, it may prove to 

 be a species of Streptocephalus. It is a native of India and inhabits 

 freshwater ponds. 



Genus Artemia 1 ^^^^^lOa 



M. Audouin, in the Ann. de la Soc. Ent. de la France, v. Bull. 

 61, 1836, mentions a species of Artemia closely allied to /irt. salina, 

 as inhabiting the salt lakes of Egypt. In the Ann. des Sc. Nat. 

 2nd ser. vi. 230, he again mentions the fact, that numbers oi Artemice 

 have been found in the "lacs de natron " in Egypt; but no further 

 description has.eyer b.?ew.giye<^o£.tbjeni,,,,, .^ ,,. , „, , ^ ,,,, , ,,, 



