KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 22. N:0 7. 1,39 



The following year Gekstaeckeh described tlicj genus as tbllovvs: 



»Kopf plump kuglig ^ewölbt öder vorn abgeflacht. Männliclie Fuhler mit .sehr laiiger, fa- 

 denförmiger, weibliche mit kurzer, engiiliedri.yer Geissel. Kiefertaster mit wchmal sichelförmigem 

 Endgliede. Sieben freie und am Länge wenig verschiedene Mittelleibisnnge. Beine mit deutlich 

 abgesetztem Hiiftgliede, bald nicht von auffallend verschiedener Länge, bald die beiden vorderen 

 Paare beträchtlicb kurzer und die drei hinteren ansehnlich länger als das dritte und vierte. Die 

 beiden ersten Paare entweder gleich allén folgenden mit einfacher Endklaue öder mit scbwacb 

 ausgebildeter Greifhand. Die Spaltbeine der drei vergrösserten vorderen Hinterleibsringe mit 

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

 Mittelleibs bauchiger als die Männchen.» 



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

 niale 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 GiLEiS, aeknowledging 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 O. F. Muller^) from the description and 

 drawing of Hans Str0m, and possibly also from specimens collected by Ström. This spe- 

 cies Avas however not recognized by subsequent authors for raore 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 beloAv as Hyperia galba. Then comes 

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

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

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

 was simply applied to the tigure of Str0m's »Marflue under gopler», which was reproduced 

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

 only a synonym for Hyperia medusarum, O. F. Mulleu. The following year Säbine^) 

 described Talitrus Cyaneae^ which doubtless is synonymous with Hyperia medusarum, 

 O. 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 Guérin-Méneville^) belongs not to Hy- 

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



In 1838 Kroeyer described a new species Lestrigonus exulans fi'om Greenland; it is 

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



') O. F. MuLLEE. Zoologise Danicse Prodromus, p. 196. 



^) A. G. Desmaeest. »Malacostracés." Dictionnaire des Sciences naturelles. Torne 28™^, p. 347. 

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

 p. ccxxxiv. 



*) P. E. GuÉRiN Méneville. Iconographie du Kégne Animal de Georges Cuvier. Crustacés, p. 22. 



