Mr. R. I. Pocock on the Genus Poecilotheria. 87 



of both species were preserved in the various collections in 

 Europe and were passing under the name fasciata. 



Reference, however, to Seba's original figure, imperfect in 

 many respects though it be, shows that the pattern of the 

 upperside of the abdomen in the original fasciata consists of 

 a pale longitudinal band surrounded by a narrow dark brown 

 border, whence narrow stripes of the same colour run on to 

 the sides of the abdomen very much as is shown in the case 

 of P. regalis on PL VII. This type of coloration is very 

 noticeable in one of the Ceylonese species, but not so in the 

 other. To the former therefore I restricted the name fasciata, 

 and described the latter as a new species subfusca. The most 

 striking differences between the two, however, do not consist 

 so much in the pattern of the abdomen and carapace, as in 

 that of the underside of the legs, the femoral segments of 

 which are beautifully banded black and yellow in fasciata, 

 while in subfusca they are of a uniform chocolate-brown tint. 

 The other two species that were described in that paper, 

 namely the one from Pinang and the one from S. India, have 

 the femora banded somewhat as in fasciata, and two out of 

 three from S. India and the one from Ceylon established in 

 the following pages are similarly coloured, while the fourth 

 more nearly approaches subfusca in having the femora 

 unstriped. 



Part 2. — Descriptions of the Species. 



(1) Poecilotheria fasciata (Latr.). (PI. VII. fig. 2.) 



Mygale fasciata, Latreille, Nouv. Diet. d'Hist. nat. xv. p. 304 (1803) ; 

 also Hist. nat. Crust, et Ins. vii. p. 160 (1804), &c; Walckenaer, 

 Hist. nat. des Araneides, iv. 1, with fig. (1800) ; Halm, Mouographie 

 der Spinnen, pi. i. (1820); id. Die Arachniden, ii. p. 65, fig. 157 

 (1834) ; C. Koch, Die Arachniden, ix. p. 41, fig. 717 (1842). 



Scurria fasciata, C. Koch, Uehersicht des Arachnidensyst. pt. v. p. 74 

 (1850). 



Pcccilotheria fasciata, Simon, Bull. Soc. Zool. Fr. 188o, p. 38; Pocock, 

 Ann. & Mag. Nat. Hist. (6) xv. p. 171 *. 



Loc. Ceylon (Trincomali, Kandy). 



* In the above list no attempt has been made to give a complete 

 quotation of the references to this species. The works that are cited are 

 those that contain the original references to the name, those that contain 

 figures of the species to which the name li fasciata " has been applied, and 

 those that contain changes in the nomenclature of the genus. Nor must 

 the inclusion of these references under one heading be taken as evidence 

 that I consider as cospeci tic all the spiders that have been referred to 

 fasciata by the various authors cited above. They may all belong to the 

 same species, but the published figures and descriptions are not sufficiently 

 accurate and detailed to carry conviction on the point. 



