KONGL. SV. VET. AKADBMIENS HANDLINGAR. BAND. 22. N:0 7. 301 



mieres: son premier article est aussi loDg que les trois premieres des pattes precedentes; il a a 

 peu pres la meme forme. Le second est tres-court, plus large a son extremite; il donne inser- 

 tion au troisieme (= carpus) qui est de la longueur des deux premieres reunies, presque aussi 

 large dans toute sa longueur. Le quatrieme (=-■ metacarpus) est beaucoup plus e^roit, presque 

 aussi long que les precedens reunis, aplati, de la meme grosseur dans toute sa longueur; il est 

 arme en dedans, ou du cote qui regarde la tete, d'un range d'epines d'egale largeur, perpendi- 

 culaires, et qui lui donnent Faspect d'un long peigne; le dernier article ou le tarse est. tres-petit 

 et en forme d'ongle ou de crochet. — — — L'abdomen est compose de cinq segmens; les trois 

 premiers sont grands, dilates sur les cotes, replies en dessous, et termines posterieurement et de 



chaque cote par une petite epine. Le quatrieme article donne insertion posterieurement 



a deux appendices aplatis, composes d'un article basilaire ayant le double de sa longueur et 

 portant a son extremite deux lames aigues.» 



In 1839 H. Lucas gave an extract of Guerin's description. 



In 1840 H. Milne Edwards gave a fresh description of the species. The following 

 passages are to be recorded: 



»Les pates des deux premieres paires sont petites. Les premieres se terminent par un 

 ongle styliforme, et les secondes par une petite main didactyle tres-imparfaite. Le bord poste- 

 rieur et inferieur de l'antepenultieme article de celles des deux paires suivantes, est arme d'une 

 rangee d'epines assez fortes. L'avant-dernier article des pates de la cinquieme paire est beau- 

 coup plus long que les precedens, grele, cylindrique et garni sur le bord anterieur d'un grand 

 nombre de petites pointes, fines, allongees et placees perpendiculairement les unes a cote des 

 autres comme les dents d'un peigne. » 



In the precious collection of Hyperids from the »Musee d'Histoire naturelle» in Paris 

 so generously intrusted to me for examination by Professor Alphonse Milne Edwards 

 there is a glass marked simply: »Themisto, Les Malouinesv, and containing a male and 

 three female specimens, which are the types for the description I am going to give below. 

 Of course I am not able to ascertain that one of them is the type specimen of 

 Guerin, but it seems very likely that they are taken at the same occasion as his specimen, 

 and that they are the types for the independent description given by H. Milne Edwards 

 in 1840, as there are no other specimens from this locality in the collection. Moreover 

 the few specific characteristics which are to be picked out from Guekin's description 

 agree with these specimens. There is also in the same collection another glass contain- 

 ing many individuals of the present species taken by Mr. Reveillere some twenty degrees 

 West of the Falkland Islands. Of the other Southern species Euthemisto antarctica this 

 collection contains no specimens from the Southern Atlantic, except the above (p. 296) 

 recorded specimens of y>Themisto Guerinii», taken at the latitude of La Plata. Thus I 

 think that I have good reasons for supposing the present species to be the true Euthe- 

 misto Gaudichaudii, Guerin. 



The male. 



PI. XIII, fig. 44-46. 



The body is dorsally carinated, often showing projecting, sharp-pointed angles at the 

 hind margin of the last three perseonal segments and of all the pleonal. The head and 

 perseon together are nearly as long as the pleon and urus together. 



