36 CARL BOVALLIUS, AMPHIPODA HYPERIIUEA. I. 2. PARAPHRONIMID^E. 



as long as the inner ramus, finely serrated on the lower part of the inner margin; the 

 rami are equal in length; the outer ramus is smooth on the outer margin, serrated on 

 the inner; the inner ramus is shorter than the breadth of the peduncle, serrated on both 

 margins. Glands as in Paraphroriima gracilis. 



The telson is small, triangular, half as narrow as the peduncle of the last pair of 

 uropoda. 



Genus 2. EUDAIRA, H. MILNE EDWARDS, 1 ) 1830. 



Diagll. Corpus gracile, leviter compressum, retrorsum angustius. Pedes percri primi et secundi pa- 

 rium carpos dilatatos gerentes. Carpus pedum secundi paris valde productus, siraul cum 

 metacarpo chelam formans. Pedunculi pedum uri, elongati, lineares, ramis longis, acutis 

 instruct i. 



The body is slender, somewhat coni])ressed, narrowing backward. The carpi of the first and 

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

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

 linear, with long, sharp-pointed rami. 



Syn. 1830. Daira, H. MILNE EDWARDS. »Extrait tie Recherches pour servir a 



l'Histoire naturelle des Crustaces 

 ampfiipodes». Ann. Sc. Nat. Tome 

 20:ine, p. 392. 



» » — Histoire Naturelle des Animaux sans 



vertebres par J. B. P. de Lamarck, 

 2:me Edition par G. P. Deshayes 

 et H. Milne Edwards. Tome 

 5:me, p. 305. 



» » H. Lucas. 1840.-) Histoire Naturelle des Crustaces, des 



Arachnides et des Myriapodes, p. 

 235. 



» • » H. Milne Edwards. 1840. Histoire Naturelle des Crustaces. 



Tome 3:me, p. 83. 



» » H. Lucas. 1840. »Daira», Dictionnaire universel d'His- 



toire Naturelle, dirige par d'Or- 

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



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

 as here Eudaira, H. Milne 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. 



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

 Part. III). 



