20 



TERRESTRIAL CARBONIFEROUS ARACHNIDA. 



Length of humerus 13, of brachium 11, of back of hand 12, of movable 

 finger 12"5; width of band 7'5, of brachium 7. 



G. senior, the type of the genus Oyclophthalmus, certainly differs from G. 

 euglyptus in having the hand shorter, the movable digit being much longer than the 

 back of the hand. So far as size is concerned, the two Scorpions are much alike. 



:r 



Fig. 4,.— Oyclophthalmus euglyptus (Peach) ; copied from Trans. Roy. Soc. Edin., vol. xxx, pi. xxii, fig. 3 a, 

 nat. size. — Lower Carboniferous ; Langholm. A. Macconochie Collection. 



The length of G. senior, without the tail, is about 41 mm. ; with the tail it would 

 be probably between 80 and 90 mm. 



Genus ANTHRACOSCORPIO, Kusta. 



1888. Anthracoscorpio, J. Kusta, SB. li. bolim. G-es. Wiss., p. 202. 



1904. Anthracoscorpio, A. Fritsch, Palseoz. Arachn., p. 75. 



1904 Eohdhus, A. Fritsch, Palasoz. Arachn., p. 72 (in part). 



1904. Eoscorpius, W. Baldwin and W. H. Sutcliffe, Quart. Journ. Gaol. Soc, vol. lx, pp. 395—398. 



Characters as enumerated above (p. 12). 



Anthracoscorpio sparthensis (Baldwin and Sutcliffe). 



1904. Eobuthus ralcovniceiisis, A. Fritsch, Palseoz. Arachn., p. 74, text-fig. 91, and pi. xii, figs. 1 — 3 



(nee text-figs. 90 and 92, and pi. xii, figs. 1 and 2). 

 1904. Eoscorpius sparthensis, W. Baldwin and W. H. Sutcliffe, Quart. Journ. Qeol. Soc, vol. lx, p. 



396, fig. 2. 



Messrs. Baldwin and Sutcliffe appear to have compared the type of A. 

 sparthensis with the example in the British Museum described by Fritsch as 

 Eobuthus rakovnicensis. On the evidence I do not agree that the two specimens 

 can be regarded as specifically distinct; nevertheless, for reasons given above 



