ENTOMOSTRACA.* 



Si/n. ENTOMOSTRACA, Miiller, Entomostraca, 1785. 



Latreille, Precis des Caractcres geuer. ; Hist . "N a i . 

 gen. et part, des Crustac. ; Genera Crustac. c! 

 Insectorum ; Cuv. Regne Animal. 

 Leach, Edinburgh Encyclop. ; Encyelop. Britann. ; 



Diet, des Sc. Nat., xiv. 

 Dumeril, Zoologie analytique. 

 Risso, Hist. Nat. des Crust, des Envir. de Nice. ; 



Hist. Nat. de 1'Eur. merid. 

 Desmarest, Consid. gen. sur les Crust' 

 /. E. Gray, Syuops. of Cont. of Brit. Mus., 1842. 

 ASPIDOSTRACA or ENTOHOSTRACA, and SlPHONOSTOMA, Burmeister, 



Organization of Trilobites (Ray Society's 

 edit.), p. 34. 

 MONOCULUS, Linnaeus, Syst. Nat., 1st edit., 1735 ; et edit, subseq. ; 



Faun. Suec., 1st edit., 17 K>. 



Fabricius, System. Entoniolog. ; Entomolog. Systemat. 

 Cucier, Tab. element. 

 Cuvier et Dumeril, Anatomic comparee. 

 Gcoffroy, Hist, abreg. des Ins. des Eiivir. dc Paris. 

 Manuel, Encyclop. method. 

 BRANcniOFTERES and ENTOMOSTRACES, Blaiimllc, Priuc. d'Auat. 



comp. 



LES MONOCLES, Jurine, Hist. Nat. desMonoc. des Envir. de (Jrui-u'. 

 CRUSTACES SESSILIOCLES, Lamarck, Syst. Anim. s. Vert., 1801. 

 BRANCUIOPODES, Lamarck, Hist. An. s. Vert., 1st edit., 1818. 

 Bosc, Man. de 1'Hist. Nat. des Crust. 



Character. -*$%& Entomostraca may be characterised 

 by their being all aquatic; by their being covered wit li 

 a shell or carapace, which is of a horny or coriaceous 

 texture, and formed of one or two pieces, in some ap- 

 proaching in appearance to a bivalve shell, in others being 

 in the form of a buckler, which completely or in great 

 part envelope's the body of the animal; by their haxinu; 

 branchia: attached either to the feet or organs of masti- 

 cation ; by their feet being jointed, and all more or less 



* From H-rn/dir, an ii;srct : and >^rr,<i\<n\ a 



