204 Indian Araclmoidea. [No. 4, 



years, before I should be able to go on with this work ; but meanwhile 

 I have collected a large number of species from various orders of the 

 class, and out of these I have on this occasion selected a few charac- 

 teristic species of each family. I have only omitted the aquatic 

 (PycNOGONiDiE and Colopoda) and the parasitic forms (Acarina). 

 Tbey are too minute to be observed with ease, though of the Acarina 

 some such species, for instance as those wbich in very large quantities 

 destroy the leaves of the tea plant, will be worthy of examination. 

 Of the other orders, the Pedipalpi, (including Pseudoscorpiones) 

 Solifug-E, Phalangidea and Araneidea, I shall of each describe one 

 or more species. One of the chief objects of this selection of various 

 species, of all of which illustrations* are here given is, as I said, to 

 attract the attention and at the same time also to facilitate the study 

 of the Indian Arachnoidea. I hope that, with the assistance of friends, 

 who will collect those species which they find in their neighbourhood, 

 we may obtain the materials for a work which may form a parallel to 

 that magnificent publication of the Ray Society, " the English spiders" 

 by Mr. Blackwall. The Indian Museum is a safe custody for all these 

 objects, and I shall have already to mention in the present paper 

 a few species, for which I am indebted to Dr. J. Anderson, the Cura- 

 tor of the Indian Museum ; they are species collected by Messrs. 

 Peel, Gregory and Haughton in Assam and adjoining districts. 

 Central India is also very rich and will, I hope, furnish many species 

 of spiders and scorpions. 



Order, PEDIPALPI. 

 This order includes those Arachnoidea in which the palpi are 

 prolonged, often strongly thickened, and terminating with moveable 

 claws or cheliceres. The scorpions may be called the typical forms of 

 the order. One of the most important recent essays on the classifica- 

 tion of Pedipalpi is by Dr. Peters, printed in the Monathsberichte of 

 the Berlin Academy for 1861. 



TELYPHONUS, Latr. 

 The Telyphoni externally very much resemble the scorpions, but 

 they have, in place of a segmented tail with a sting at end, a simple 



* The measurements are always given in millimeters, so as to avoid differ- 

 ences which may result from the use of a geographical and an English inch. 



