20 TERRESTRIAL CARBONIFEROUS ARACHNIDA. 



Length of liumerus 13, of brachiiim 11, of back of hand 12, of movable 

 finger 12*5; width of liand 7'5, of In-achiuni 7. 



G. soiior, the type of the genus Gudophthalmm, 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. 



YiQ. -l. — Cydophthalmus cughjptas (Peach) ; copied from Trans. Roy. See. Eilin., vol. xxx, pi. xxii, &'^. 3 a, 

 nat. size. — Lower Carboniferous ; Lang-holm. A. Macconochic 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. 



Geiim ANTHRACOSCORPIO, Kusta. 



1888. Antliracoscorino, J. Kusta, SB. k. bohiu. Gres. Wiss., p. 202. 



1904. Anthracoscorj)io, A. Fritsch, Palaeoz. Aracliu., p. 75. 



1904-. Eobuthus, A. Fritsch, Palaeoz. Aracliu., p. 72 (iu part). 



190i. Eoscorpiiis, W. Baldwin and W. H. Sutcliffe, Quart. Jouni. Geol. Sue, vol. Ix, pp. o95 — o98. 



Characters as enumerated above (p. 12). 



Anthracoscorpio sparthensis (Baldwin and Sutcliffe). 



1904. Eobuthus raJcovnicensis, A. Fritsch, Pala;oz. Aracliu., p. 74, text-tig. 91, and pl. xii, figs. 1 — 3 



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

 1904. Euscorpius sparthensis, W. Baldwiu aud W. H. Sutcliffe, Quart. Jouru. Geol. Sue, vol. Ix, 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 ralcovnicensis. On the evidence I do not agree that the two specimens 

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



