THE ANNALS 



MAGAZINE OF NATUEAL HISTORY. 



rSIXTH SERIES.! 



No. 104. AUGUST 1896. 



XVII, — Further Notes on the Anatomy and Development of 

 Scorpions^and theirhearinq on the Classification of the Order. 

 Bj Malcolm Laurie, B.A., D.Sc, F.R.S.E., F.L.S., 



Professor of Zoology at St. Mungo's College, Glasgow. 



[Plate IX.] 



Since the publication of my former notes on this subject * 

 I have had an opportunity of examining a number of species 

 of Scorpions belonging to typical genera. This opportunity 

 I owe to the kindness of Mr. Pocock, of the British Museum, 

 and I gladly take this opportunity of thanking him. While 

 sufficient material has not yet been examined to enable me to 

 base a complete classification on it, nevertheless a number of 

 interesting facts have been ascertained with regard to the deve- 

 lopment, and it seems better to publish these without waiting 

 for the problematical arrival of further material. This is the 

 more advisable as I find it necessary now to revise some of 

 the conclusions to which my earlier observations seemed to 

 lead. As a general result I am more than ever convinced of 

 the great value of the mode of development as a basis for 

 classification, and am inclined to consider the structure of the 

 lung-book lamellas of subordinate but considerable value. 



• Ann. & Mag. Nat. Hist., March 1896. 

 Ann. dc Mag. N. Hist. Sen 6. Vol. xviii. 9 



