THE JOUENAL 



OE 



THE LINNEAN SOCIETY. 



Reyisiou of the Idcteidce, a family of Sessile-eyed Crustacea. 

 By Edward J. Miers, F.L.S., F.Z.S. 



[Eead June 16, 1881.] 

 (Plates I.-III.) 



In the accoimt now laid before the Society of this interestiug 

 group I have, as iu previous memoirs*, restricted myself to thie 

 endeavour to elucidate the classification, definition, and distribu- 

 tion of the genera and species, whicli had become greatly confused 

 in consequence of the large additions to the literature of recent 

 years. Hence, it appeared, a revision was urgently needed. 



Introductovy RemarJcs on the Sistovy and Glassijicatiou of the 

 Idoteidce. 



Little need be said, by way of introduction, regarding the classi- 

 fications employed by the earlier autbors (sucb, for iDstance, as 

 Lcachf, DesmarestJ, and E;isso§), since the types with which tbey 

 were acquainted were but few, and tlie definitions of the generic 

 divisions employed by them are not generally of sufiicient 

 importance to allow of their employment in a natural system of 

 classification. 



* Eevision of the Hipindea in Joum. Linn. Soc. Zool. xiv. pp. 312-336 (1878). 

 On the SquilMcB, Ann. & Mag. Nat. Hist. (ser. 6) v. pp. 1 and 108 (1880). 



t Trans. Linn. Soc. xi. pp. 353, 364 (1815). 



\ ' Considerations generales sur les Crustaces,' p. 288 (1825). 



§ 'Hist, naturelle de I'Europe nieridiouale,' v. p. 107 (1826). 

 LINN. JOUEN. — ZOOLOGY, VOL. XVI. 1 



