1870.] ARACHNIDA FROM KERGUELEn's LAND, 263 



the cephalothorax, and about double its length ; its fore extremity is 

 conterminous in its breadth with the cephalothorax, but is constricted 

 laterally near the middle, the hinder extremity being rounded and 

 obtuse ; its upper surface is furnished with a few long pale hairs or 

 bristles. 



Several examples of this minute but most interesting Arachnid were 

 found under stones in Kerguelen's Land by Mr. Eaton. Unfortunately, 

 from their extreme delicacy and small size, they had suffered severely 

 from the action of the strong spirit in which they were immersed. 



Order Araneidea. 



Fam. Agelenides. 



Gen. nov. Myro. 



Cephalothorax oval, roundly truncated before, and moderately 

 constricted on its lateral margins at the caput. Upper convexity 

 moderate; profile-line slopes vei'y gradually in a slightly curved line 

 from the hinder slope to the ocular region ; clypeus unusually narrow, 

 almost obsolete. Spinners short, those of the inferior pair longest 

 and strongest. 



Eyes eight, unequal in size and forming a rather large and some- 

 what oval area, enclosed by two longitudinal curved rows of three 

 eyes each ; the curves directed from each other ; within this area, 

 and towards its fore part, are two minute eyes near together in a 

 transverse line. 



Legs not greatly different in relative length, which is 4, 1, 2, 3. 

 Each tarsus terminates with three claws. 



Maxillce large, curved towards the labium, much and roundly pro- 

 tuberant on the outer sides towards their extremity, which is rather 

 obliquely truncated ; the palpi issue from unusually near their lower 

 extremities. 



Labium rather more than half the length of the maxillae, very 

 difficult to be seen clearly ; but its form is apparently oblong, slightly 

 rounded at the apex. 



Myro kerguelenensis, sp. n. (Plate XIX. fig. 5.) 



Adult male. Length nearly 2^ lines. 



The cephalothorax is of a yellow brown colour, the margins 

 surrounded with a fine black line ; the normal grooves and indenta- 

 tions are well marked, and suffused with dusky black, giving the thorax 

 somewhat the appearance of radiating markings ; the ocular region 

 is furnished with some bristly black hairs ; and some longer and finer 

 ones are distributed along the central longitudinal line to the hinder 

 slope. 



The eyes are unequal in size and form a largish hexagonal area on 

 the fore part of the caput close to its fore margin ; they may be de- 

 scribed either as in two longitudinal curved rows of three eyes each, 

 with two minute ones in a transverse line towards the fore extremity 

 of the enclosed area, or as four pairs, a hinder pair, two fore lateral 

 pairs, and a fore central pair ; those of the hinder pair are sepa- 



