14 S. J. MC'INTIEE 



replaced by ordinary simple hairs. The size of the falces enabled 

 me to examine them minutely, and I find that each mandible is 

 furnished with a comb-like fringe, free at the outer extremity, but 

 attached to the mandible at the other, and lying along the side of 

 it. Probably the structure of the falces in the other two Pseudo- 

 Scorpions resembles that in the species I am alluding to, but I hare 

 experienced great difficulty in examining those organs, and in 

 mounting the creatures jDermanently I have been quite beaten. The 

 ordinary process, by means of balsam, seems to me to alter the 

 general character too much, besides obliterating the more delicate 

 structures; and glycerine, Deane's gelatine medium, and simple 

 salt and water, cause the softer portions to shrink so much as to 

 disguise the true character almost in an equal degree. 



After the usual vote of thanks to the author of the above paper, 

 Mr. M. C. Cooke spoke on the subject as follows: — 



Mr. M. C. Cooke— I am sure that we have all been much 

 interested in Mr. Mclntire's paper, and thank him for bringing 

 before us a subject like the present, about which so little is known. 

 As far as my own experience extends, there are, I believe, fifty- 

 four species of Chelifers already described, and the majority figured. 

 Of these I took the opportunity of ascertaining a few facts to lay 

 before the Club, as a kind of appendix to the paper we have just 

 listened to. Out of the fifty-four species named, thirty-nine are 

 European, one belongs \o the Asiatic Islands, none to continental 

 Asia, three to North America, four to South America, and seven to 

 Africa. Thus the old world has forty-seven, and the new world 

 seven. Of the European species nine are found in Great Britain, 

 and, as far as at present ascertained, three of these are peculiar to 

 the British Islands. Linnjeus would appear to have been acquainted 

 with only two species, which he calls Phalanghmi cancroideSj and 

 Phalanf/inm acaroides. In this country they have received but 

 little attention. Except Leach, no British Zoologist has studied 

 them. It is true that in the early volumes of Loudon's Magazine 

 of Natural History occur several communications to the editor, 

 concerning certain curious little creatures found attached to flies 

 (vols, iii., iv., and vii.), which ultimately are declaimed to be 

 Chelifers; and amongst these writers of forty years ago all are 



