1873.] F. Stoliczka — I^otes on the Indian Species of TJielyphonus. 183 



olive brown, coxae and sternum yellowish brown, abdomen pale brown, feet of 

 the same colour as on the upper side. 



The species grows to a large size : the largest specimen from Sikkim 

 has the total length of cephalothorax and abdomen 50 mm. 



In Sikkim the species is found from 1000 to about 4000 feet in damp 

 places under wood, more rarely under stones. It is the most common of all 

 the Indian Thelyphoni. I have examined about forty specimens of all sizes 

 from 20 to 50 mm., and all exactly agree in structure. 



It seems very improbable (judging from the localities recorded by Mr. 

 Butler) that there should be no specimens of this species in the British 

 Museum, but I am not certain whether Mr. Butler refers to it under T. 

 rufimanus or proscorpio. He must have thought it not worth while reading 

 my description and comparing my figure of T. Assaonensis, or else he could 

 not have referred it to the present species. 



The o]'iginal name T. proscorpio of Lattreille (Gren. Crust, et Insect., 

 1806, p. 130) was, strictly speaking, proposed for Linne's Plicdangiam 

 caudatum. In spite of the numerous references to figures in various old 

 books, it is entirely impossible to trace the species which Latreille had in view. 

 The name would have had to be entirely ignored, but for its timely rescue by 

 Koch who figures a Javanese species under Latreille's name, giving the 

 same synonyms, (Arachniden, Vol X, p. 26, pi. 333, fig 771). Judging 

 from mere figures, we are, I think, justified to regard the species, 

 delineated by Koch, as different from Lucas' Th. caudatus (to which I 

 shall refer further on). Koch's proscorpio would appear to have the joints of 

 the cheliceres shorter and thicker, the fifth much stronger than the fourth, 

 (while the reverse is observed in Lucas' figure), the centre of the anterior 

 upper abdominal joints keeled, the first, lower abdominal joint very large 

 and with a longitudinal groove. I hardly think that Lucas could have over- 

 looked the last character, when describing the first lower abdominal joint ; 

 and besides that in his species he particularly refers to a separate small 

 spine preceding the great spinal process on the fourth joint of the cheliceres ; 

 it is indicated in his figure, but not a trace of it is to be seen in Koch's 

 figure. For these reasons, it seems to me clear that we have to consider 

 Lattreille's re-established Th. proscorpio as distinct from Linne's re-esta- 

 hlished T. caudatus. 



Butler also doubtfully refers Lucas' T. angustus to his compound mix- 

 ture of Th. proscorpio^ but with still less reason, as I shall presently shew. 



2. Theltphonus Assamensis, Stol. PI. XII. Fig. 2. 



T. Assamensis, Journ. A. S. B, Vol. xxxviii, Pt II, 1869, p. 205, pi. xix, fig 1. 

 The whole upper surf ace (jranular ; the length of the five terminal joints 

 of the cheliceres fully cfpcals the first nine abdominal segments ; the last foot is 



