KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 22. N:0 7 

 Daira, II. MILNE EDWARDS, Dana. 



1852. Dairinia DANA » 



37 



1885. ? Paraphrunima, GLAUS. 



1852. United States Exploring Expedition. 

 Crustacea. Vol. 2, p. 981. 

 » » 1. c. p. 1442. (P. 1519 Daivilia.) 



Spence Bate. 1862. Catal. Amph. Crust. Brit. Museum, 



p. 309. 

 C. Bovallius. »On some forgotten genera among 



the Amphipodous Crustacea". Bih. 

 t. K. Sv. Vet. Ak. Handl. Bd. 10. 

 N:o 14, p. 8. 



The original generic diagnose of H. Milne Edwards runs as follows: 



»Tete grosse et renflee; antennes styliformes ct rudinientaires ; thorax conique, tres- 

 etroit posterieurement et ayant le premier segment tres-court; pattes des deux premieres 

 paires portant une main imparfaitement didactyle, dont le doigt mobile est forme par les 

 deux derniers articles; abdomen comme dans le genre Hyperie.» 



Daira was mentioned later by H. Milne Edwards and H. Lucas, as will be seen 

 from the list of synonyms above, and some few characteristics were added, but unfortu- 

 nately no drawing was given. In 1852 Dana quotes Daira and proposes for it the new 

 name Dairinia or Dairilia, Daira being preoccupied by Leach for a genus of crabs. 

 But as he totally misunderstood the diagnosis of Milne Edwards and applied the new 

 name on animals belonging to a widely distant family of Hyperids, the Lycwidte, the 

 name Dairinia must be rejected, and the original one, with a slight correction, restituted. 



From Paraphronima this genus is distinguished by the cheliform second pair of 

 peraeopoda. Most of the other characteristics quoted by Milne Edvards as generic have 

 probably only specific value, and are mentioned below in the description of the species. 



1. EUDAIRA GABERTII, H. MILNE EDWARDS, 1830. 



Diagil. Caput magnum, tumidum. Antenna: primi paris feminae, curtae subulatae. Segmentum pri- 

 mum percei brevissimum. Processus carpi pedum percei secundi paris metacarpo paullo 

 brevior. Pedes tertii ac quarti parium pedibus quinti ac sexti parium multo longiores. 



The head is large, tumid. The first pair of antennae in the female are short, subulate. The 

 first perceonal segment is very short. The carpal process of the second pair of peraeopoda 

 is a little shorter than the metacarpus. The third and fourth pairs are much longer than 

 the fifth and sixth. 



Colour. ? 



Length. 9 — 10 mm. 



Uab. »The Indian Ocean, captured by the officers of »La Chevrette» (H. Milne Edwards). 



