ACTAEA HELLERI. 



9f 



men are more or less punctate, the basal joints of it, like those 

 of the oval female abdomen, being somewhat granular. 

 The anterior legs are of the same size, both in the male 

 and in the female, the arms not projecting beyond the 

 lateral margins of the carapace ; the outer surface of the 

 carpopodites is provided with similar tubercles as on the 

 carapace , like also the rounded upper surface and the outer 

 surface of the hands, though these conical tubercles be- 

 come smaller near the inferior margin and disappear at 

 last entirely. The upper surface of the strongly curved 

 mobile finger is armed with sharp small tubercles , the in- 

 ternal margins of both fingers being armed each with a 

 strong basal tooth , on both sides of which a small tuft 

 of stiff yellow hairs is found as well on the mobile as on 

 the immobile finger (and not only on the latter, as is 

 described by Mr. Milue Edwards) ; the ends of the fingers 

 are acuminated and the internal surface of the hands is 

 minutely granulated. Ambulatory legs compressed, the 

 three terminal joints being armed with sharp small tuber- 

 cles , and the external surface of the meropodites of the 

 posterior legs as also the under margins of the meropodites 

 of the other legs are granulated. 



Our specimens are of a beautiful red colour, enhanced 

 especially on the upper surface of the carapace by the 

 dark red colour of the conical tubercles : the ends of the 

 black fingers are white, and the black colour extends in 

 the male from the immobile finger over the lower half of 

 the outer and inner surface of the hands, but not in the 

 female. The whole upper surface of the carapace, as 

 also the outer surface of the legs is covered with nume- 

 rous tolerably long and finely yellowish coloured hairs. 



Breadth of carapace in the male 25 mm. 



Length > > > » » 16 mm. 



Breadth » » » » female 21 mm. 



Length » » > » » 14 mm. 



Actaea helkri may be easily distinguished by its entire, 

 undivided anterolateral margins, the sharp conical tuber- 

 Note» trom the Leyden IVLuseuin, Vol. 111. 



