KONGL. SV. VET. AKADEM1ENS HANDL1NGAR. BAND. 22. N:0 7. 139 



The following year Gerstaecker described the genus as follows: 



»Kopf plump kuglig gewolbt oder vorn abgeflacht. Mannliehe Ffthler mit sehr langer, fa- 

 denf'ormiger, weibliche mit kurzer, enggliedriger Geissel. Kiefertaster mit schmal sichelformigem 

 Endgliede. Sieben freie und am Lange wenig verschiedene Mittelleibsringe. Beine mit deutlich 

 abgesetztem Huftgliede, bald nicht von auffallend verschiedener Lange, bald die beiden vorderen 

 Paare betrachtlich kurzer und die drei hinteren ansehnlich langer als das dritte und vierte. Die 

 beiden ersten Paare entweder gleich alien f'olgenden mit einfacher Endklaue oder mit schwaeh 

 ausgebildeter Greifhand. Die Spaltbeine der drei vergrosserten vorderen Hinterleibsringe mit 

 langen, geisselformigen Aesten. Weibchen sehr viel plumper und besonders im Bereich des 

 Mittelleibs bauchigrer als die Mannchen.» 



B 



As synonyms to Hyperia he gave Hiella, Straus, and Lestrigonus, M. Edw., as 

 male forms, and Metoecus, Kroeyer, and Tauria, Dana, as female forms. 



In 1887 I gave a short generic diagnosis, which was quoted by Stebbing in the 

 following year. 



In 1888 too Giles, acknowledging Hyperia and Lestrigonus to be one and the same 

 genus, claimed Lestrigonus as the proper name for the genus, though without giving 

 his reasons. 



The first described species belonging to Hyperia was, as I have already said, 

 Cancer Medusarum. It was named in 1776 by 0. F. Muller 1 ) from the description and 

 drawing of Hans Strom, and possibly also from specimens collected by Strom. This spe- 

 cies was however not recognized by subsequent authors for more than hundred years, 

 and the name was made a synonym for various other species of Hyperia and allied 

 genera, as will be seen from the more detailed account of it below under »Hyperia me- 

 dusarum». The next new species was Cancer Gammarus galba, described by Montagu 

 in 1813 from the coast of Devonshire, recorded below as Hyperia galba. Then comes 

 the name Hyperia Sueurii, Latreille, first published by Desmarest in 1823 2 ) but 

 never, as far as I know, accompanied by any specific description. From the quotations 

 of Latreille, Desmarest, and H. Milne Edwards, I am inclined to believe that the name 

 was simply applied to the figure of Strom's »Marflue under gopler», which was reproduced 

 by Latreille as mentioned above (p. 134), and in this case Hyperia Sueurii would be 

 only a synonym for Hyperia medusarum, 0. F. Mullek. The following year Sabine 3 ) 

 described Talitrus Cyanea?, which doubtless is synonymous with Hyperia medusarum, 

 0. F. Muller. The next addition was Hiella Orbignyi, named by Straus Durckheim in 

 1829, this is in my opinion, a synonym of Hyperia galba, Montagu. 



In 1830 H. Milne Edwards founded two new species Hyperia Latreillei, and 

 Lestrigonus Fabrei, the latter recorded below as Hyperia Fabrei. 



Hyperia pedestris described in 1836 by Guerin-Meneville 4 ) belongs not to Hy- 

 peria but is a Paraphronima, as proved above (p. 24). 



In 1838 Kroeyer described a new species Lestrigonus exulans from Greenland; it is 

 probably synonymous with Hyperia galba, but as the original description is very in- 



') 0. P. Muller. Zoologiae Danicse Prodromus, p. 196. 



2 ) A. G. Desmarest. »Malacostraces.» Dictionnaire des Sciences naturelles. Tome 28 me , p. 347. 



3 ) E. Sabine. "Invertebrate Animals», in A supplement to the appendix of Captain Parry's voyage, etc., 

 p. ccxxxiv. 



4 ) F. E. Guerin Meneville. Iconographie du Regne Animal de Georges Cuvier. Crustaces, p. 22. 



