36 CARL B0VALLIU8, AMPHIPODA IIYPERIIDEA. I. 2. PARAPHRONIJIIDiE. 



as long as tlic iiiricv vairius, finely seiTatcd on the lowcv part of the inner margin; the 

 raini are equal in length; the outer i'anius is sniooth on the outer margin, serrated on 

 the inner; the inner raraus is shorter than the breadth of the pcdnncle, serrated on both 

 margins. Glands as in Paraphroniina gradlis. 



The telson is snjall, triangulär, half as narrow as the ])eduncle of the last })air of 

 uropoda. 



Genus 2. EUDAIRA, H. MILNE EDWARDS,') 1830. 



Diagn. Corpus gracile, leviter coiiipressuiii, rctrorsuin angiistius. Pedes j^erad primi et secundi pa- 

 rium carpiis clilatatos gerentes. Carjjiis pcdiim secundi paris valde productus, simiil cum 

 metacarpo chelaui formans. Pedunculi pedum uri, elongati, Jineares, ramis longis, acutis 

 instructi. 



The hodij is slender, somewhat coiiij)res8ed, narrovving backwavd. The carpi of the first and 

 second pairs of perwopoda are dilated. The carpus of the second pair is very produced, 

 together with the raetacarpus forming a chela. The peduncles of the uropoda are elongate, 

 linear, with long, sharp-pointed rami. 



Syn. 1830. Daira, 11. MILNE EDWARDS. — »Extniit de Recherclies pour seivir ä 



rHistoire iiaturelle des Crustacés 

 araphipodes». Ann. Se. Nat. Torne 

 20:rae, p. 392. 



» » — Histoire Naturelie des Aiiimaux sans 



veitébres par J. B. P. de Lamarck, 

 2:me Éditiou par G. P. Deshayes 

 et H. MiLNE Edwards. Torne 

 5:me, p. 305. 



» )) H. LucAS. 1840.-) Histoire Naturelle des Crustacés, des 



/ Arachnides et des Myriapodes, p. 



235. 



» » H. MiLNE Edwards. 1840. Histoire Naturelie des Crustacés. 



Torne 3:me, p. 83. 



» » H. LucAS. 184U. »Daira», Dictiounaire universel d'His- 



toire Naturelle, dirigé par d'Or- 

 bigny. Torne 4:me, p. 592 bis. 



') I cite the narae of the first founder of a genus after a corrected form of his original generie name, 

 as here Eudaira, H. Milnf, Edwards, because, I think that the definition of a generic division is of a greater 

 importance to science than the more or less carefully elaborated form of the name, originally chosen by the founder 

 for designating it. As such corrections I regard the rectification of wrong writing or spelling, or the applying 

 of one of some few prefixes where the original name may be found preoccupied, as such prefixes I propose »eu» 

 »para» and »pseudo»; but when the original preoccupied name is composed of more than four syllables, or already 

 possesses one of these prefixes, I think it better from practical reasons to give a new name. 



^) In 1851 appeared the same work only with a new title, the letterpress is the same (see the bibliography. 

 Part, III). 



