442 



THE PHALANGIA AND PEDIPALPI IN WESTERN SOUTH AMERICA. 



Length of body, 0.66" ; of palpi, l."j of first pair of feet, 3.6" ; of second pair, 1.4"; 

 of third pair, 1.55"; of fourth pair, 1.6". 



Remarks.— The specimens on which this description is founded, were collected in the 

 Zulu country, South Africa, by a missionary, Dr. A. Grout, and presented to the Academy 

 of Natural Sciences, in whose collection they now are. 



Buthus Groulii, n. sp. 



Cephalothorax very smooth, blackish, with a marked, longitudinal, light yellowish-brown, 

 median line, and a similar one on each lateral margin ; its median keel slight ; its anterior 

 margin not truly emarginate, although there are some indications of emargination. The 

 three lateral eyes about equal. The arms light yellowish-brown, pilose, without spines or 

 pronounced crests. The hands blackish, smooth, somewhat tumid, with the fingers slen- 

 der, elongated, brownish, and each with numerous teeth placed closely in oblique series. 

 The tail rather robust, very smooth, and polished; its upper surface very deeply furrowed, 

 and with the lateral margins of the proximal four short, light-brown articles, prolonged 

 upward into a very strongly marked spinous process ; its under surface without crests, 

 whose ordinary position, however, is marked by dark lines ; the penultimate article the 

 largest, blackish, deeply furrowed above, but without spines or pronounced crests ; the last 

 article blackish, pilose, somewhat ovate, flattish above, tumid below ; the sting slender, 

 strongly curved, with a minute tooth or spine at its base. The legs light brown, mot- 

 tled above with black. The combs with about fifteen teeth each. (PL 24, fig. 4.) 



Length of body, 0.45" ; of body and tail, 1.25". 



Remarks. — I have seen a single specimen of this species, a male, belonging to the Acad- 

 emy, collected by Dr. Grout in the Zulu country, South Africa. I have named it in 

 recognition of the services of Dr. A. Grout, alike to humanity and science. 



