282 BRITISH ENTOMOSTRACA. 



Genus 1 — Dinemoura.* 



DiNEMOTjKA, Latreille, Cuv. Regne Anirn., iv, 197. 



— M. 'Edwards, Hist. Nat. Crust., iii. 

 DiNEMTJRA, Nordmann, Mikrog. Beitr. 

 DiNEMATUKA, Burmeister, Nov. Act. Acad. Nat. Cur., xvii. 



— Dana, Proc. Am. Acad. Arts and Sc. 1849, p. 60. 

 Pandarus, M. Edwards, Ann. Sc. Nat., xxviii. 



— Johnston, Loudon's Mag. Nat. Hist., viii. 



Character. — Lamellar elytraform appendages covering 

 the thorax, only one pair. Three first pairs of feet seti- 

 ferous ; the posterior foliaceous and membranous. 



Bihliograj^lncaJ History. — A species of this genus is 

 figured by Herbst, in the Berlin ' Gesellsch. Skrift./ 1780, 

 and described under the name of " See-laus vom Hemor- 

 fisch;" but the genus was first established by M. Latreille 

 (Cuv. Regne An., iv, 1829), to receive- the species of 

 Caligus described by Miiller under the name of Caligus 

 productus. It was not remarkably well characterised or 

 defined, being taken from the figure merely of that species, 

 as given by Miiller ; Ijut it has been adopted by succeed- 

 ing naturalists to a greater or less extent, and latterly 

 more distinctly defined and limited by M. Edwards, in his 

 ' Hist. Nat. Crust.' Burmeister, in the ' Nov. Act. Acad. 

 Nat. Cur.,' xvii, objected to the name, and proposed that 

 of Dinematura, as being more euphonious and more 

 grammatically constructed. Judging, however, from his 

 figures and descriptions, it is evident that his genus 

 Dinematura is quite different from the Dinemoura of 

 Latreille, taking the Caligus productiis as the type ; and 

 as M. Edwards very properly points out (1. c. iii, 4G3, 

 note), it is synonymous with the genus Nogaus of Leach, 

 already well defined by that author several years previously. 

 M. Edwards, in adopting this genus, as distinct from 

 Pandarus of Leach, points out distinct generic characters, 

 and sets it upon a better foundation than had heretofore 



* From (ii;, iwo ; vnna, a flircad ; and (^vpa, a tail. 



