12 Records of the Indian Museum. [Vol X, 



the palps not quite so well developed. The stripe of the cephalo- 

 thorax is no more developed than in the older examples. 



As With has not given any measurements of this species, 

 1 shall here give some from an excellent specimen ( a' ) with 

 extended abdomen, from Assam. 



Length 272 mm. 



Measureu.ents. — Cephalothorax : long. 072; lat. o'50. Femur: 

 long. o-6i; lat. o-i6. Tibia: long. 043; lat. 0"i8. Hand: long. 

 o"47 ; lat. o"27. Fingers: long. 0'53 mm. 



There are in the collection of the Indian Museum a number 

 of specimens of a form or rather of two forms, quite different 

 from the preceding species, and nearly allied to the Palsearctic 

 Olpium paUipes, Lucas. In a paper on Pseudoscorpions from 

 Formosa I have mentioned a species of Olpium from this island, 

 which I referred to Olpium longiventer, Keyserling, yet fully 

 attentive to a species, Olpium Jacobsoni, described by Tullgren 

 from Java, so that I thought it best to consider the latter as a 

 form of the former The Indian specimens, just mentioned, 

 have to a certain extent confirmed this opinion, but they prove 

 nevertheless that there is really one form with somewhat more 

 slender palps [0. longiventer) and another form with more robust 

 palps (0. Jacobsoni), and I have therefore arranged the Indian 

 specimens under each of these species or forms, as follows: — 



Olpium longiventer, Keyserling. 



India. \V. Dun ( base of W. Himalayas), Karwapani, 9 .specimens, on the 

 newly whitewashed walls of a resthouse, M. No. ^ Yf'- 



These specimens agree well with Keyserling's description and 

 figures, among other things in the slender palps, the femur of 

 which is about four times as lon^ as wide^ as Keyserling reports it ; 

 the fingers are about as long as the hand; the palps are quite 

 smooth. I and II pairs of legs have the femoral pars basalis a 

 little longer than pars tibialis. 



In this as well as in the following species it is to be noticed 

 that the femur of the I pair of legs has the basal part only a 

 little longer than the tibial one (not at least if times as long, as 

 With states in his diagnosis of the genus Olpium), but there is 

 no doubt that the two species mentioned here, by their whole 

 appearance and their affinity to Olpium pallipes, belong to the 

 true Olpium. This feature is present in the Indian specimens 

 as well as in those from Formosa and in Tullgren's types from 

 Java; Keyserling says that the femur is divided in the middle, 

 which really is the case. 



Olpium Jacobsoni, Tullgren. 



India. Calcutta, i specimen, running in sunshine on bathroom wall, Museum 

 premi.ses, 22-x-iuii, M. No. -yy-. — Satara District: Koyna Valley, Talashi, 

 2000 ft., I specimen, iv-1912, collected by F. H. Gravely, M. No. -yf- ; Hills 

 near Mcdha, Venna Valley, 2500-3500 ft., 2?, collected by F. H. Gravely, M. 



