Xll IXTRODrCTlOX. 



(Bihaug K. Svenska Vet.-x\kad. Haiidl. xx. Afd. iv. no. 4, ISiM)*. 

 Three species new to Burma are mentioned in this paper : — 



JJiciis donicstica (l)ul.). 

 JS'otoceatria se.c-spinosa, Thor. 

 Midavms lutescens, Thor. 



(Of the last-named, new, species, only a diagnosis is given ; the 

 Notocentria, also new, is described in detail.) 



Of the 3yl species enumerated in the following Systematic List, 



12 belong to the Territelaria^, 



1 ,, ,, Cavitelariaj, 



2 ,, ,, Pseudoterritelariae, 

 42 „ „ Tubitelaritc, 



56 ,, ,, Retitelariae, 



106 ,, ,, Orbit elariae, 



44 ,, ,, Citigradae, 



51 „ „ Laterigradag, and 



67 „ ,, Saltigradag. 



381 



As to the general character of the Burmese spider-fauna, it can- 

 not, in spite of the numerous new genera which at present seem to 

 be confined to Burma, be said to differ essentially from that of the 

 neighbouring regions of Southern Asia— Indo-China, India, and 

 Indo-Malaysia. A great many of the Burmese species have a very 

 wide geographical distribution, and some are almost cosmopolitan. It 

 will be seen from the "Systematic List" that of the 381 Spiders 

 hitherto found in Burma, nearly one third (about 115 species) belong 

 also to the fauna of Indo-Malaysia (wdth the Nicobar Islands), from 

 which region about 600 species of Spiders are already known ; at 

 least 50 of the Burmese species have been observed in India (and 

 Ceylon) and about 30 in Indo-China. Nearly 50 among them have 

 also been found in Austro-Malaysia or Papuasia, about 20 in Aus- 

 tralia and Polynesia, and 17 in Africa. But all these iinmbers will, 

 of course, be much augmented when the arachnological fauna of 

 these regions is better known. Some (10) species are common 

 to Burma and Europe : Lo.vosceles erythrocepluda, Theridium rujlpes, 



* On page B (lines 26 and 27) of this paper, (Nepliila and Aranea) fnsciata 

 is a slip oi' ilif> pon I'or ( Xopliihi ami Ai'aura) mni-tdatd. 



