208 CARL BOVALLIUS, AMPHIPODA HYPERIIDEA. I. 2. HYPERIIDiE. 



flyperla Fnbrei, 



Lestrigomis Fabreii, H. MILNE EDWARDS. Spence Bate. 1862. Catal. Amph. Orust. Brit. Mu- 

 seum, p. 291. 



Hyperia Fahrei, » C. Bov.\llius 1887. »Systematioal list of the Ara- 



phipoda Hypenidea». Bih. 

 t. K. Sv. Vet. Ak. Halldi. 

 Bd. 11. N:o 16, p. 16. 



The original generic diagnosis of H. Milne Edwards in 1830 is quoted above (p. 

 135). The characteristics : »premier segment du thorax rudimentaire», et »aucune patte 

 n'est préhensile, mais celles de la seconde paire presentent une espéce de petite main 

 formée par rantépénultiéme artide», are purely specific, and referable to the species Le.stri- 

 gonus Fahrei vfh.\chihen had not any other dascription. His specific description of 1840 runs: 



»Les antennes swpérieures, plus longues que le corps, ont un pédoncule gros et coudé; le 

 premier artide est grand et cylindrique; le second est trés-court; le troisiéme, presque aussi 

 longue que le premier, s'amincit beaucoup vers le bout, et porte sur le bord inférieur une rangée 

 de grands poils; enfin le cinquiéme et le sixicme sont trés-petits; la tige terminale est extréme- 

 ment longue, filiforrtie, ayant presque la méme grosseur dans toute son étendue, et divisée en 

 un grand nonibre de petits artides. Les antennes inférieures ont ä peu prés la méme longeur, 

 es leur pédoncule est gros, coniqvie et composé de trois artides; enfin la tige terminale est gréle 

 et filiforme comme celle des antennes supérieures. Les palpes mandibulaires sont petits. Les 

 patés de la premiere paire sont trés-courtes et cylindriques; celles de la seconde paire, ont la 

 méme fornie que chez les Hypéries; enfin le premier artide des six derniéres est large et lamel- 

 leux. Ce petit crustacé, long d'environ cinq lignes, a été trouvé dans la mer des Indes par 

 M. Fabré». 



In 1852 Dana described under the narae Lestrigonus Fahrei an animal which how- 

 ever is not identical with H. Milne Edwards' species, as I have already said above (p. 

 140), atid which will be described below as the type for Hyperia Danai. When Spence 

 Bate in 1862 recorded Lestrigonus Fahrei he reproduced Dana's drawing and applied to it 

 the description given by H. Milne Edwards, and thus he failed to recognise the true species. 



Among all the forms of Hyperia which I have examined that described here below 

 most closely agrees with Lestrigonus Fabrei, H. Milne Edwards, and therefore I have 

 adopted the specific name Fabrei for it, the more so as there are speciraens of this species 

 in the collection of the »Musée du Jardin des Plantes» from Indian Sea, but without spe- 

 cific name. Of the other specimens of Hyperia in the same collection none agrees with 

 the original description of Lestrigonus Fahrei. 



In general appearance and some characteristics Hyperia Fabrei closely agrees with 

 H. luzoni, but is easily distinguished b}^ the small but distinct carpal process, and the 

 serrated, not notched hind margin of the metacarpus, of the first pair of perseopoda, and 

 by the telson being much shoi'ter than half the peduncle of the last pair of uropoda. 



The ra a 1 e. 



The hody is .slender; the head and peraäon together are much shorter than the 

 pleon and urus together. 



The head is very large, and nearly as long as the five fir.st personal segments 

 together; it is more than a third part deeper than long, the depth fully equalling the 



