530 RICHARD KVANS. 



formulated, though from our present knowledge of them it 

 appears that Bouvier's view must be dismissed. 



The Department of Comparative Anatomy, 

 The Museum, Oxford ; 



November 30th, 1900. 



Addendum. 



In connection with the present memoir, my siucerest thanks 

 are due to Professor Weldon for allowing me the free use of 

 his laboratory, for giving me the benefit of his opinion on 

 difficult questions bearing on the subject, for procuring for 

 my use some of the literature on the Peripatidse, and 

 finally for allowing Mr. Bayzand to help me with the illus- 

 trations ; to Professor Poulton for announcing the discovery 

 of the forms here described, for reading over the proof sheets, 

 as well as for many other kindnesses; to Pi'ofessor Lankester 

 for supplying me with copies of some of the most important 

 papers on the subject ; to Dr. E. Horst, of the Leyden 

 Museum, for his courtesy in allowing me to examine the type 

 specimen of E. sumatranus; to the Principal and Fellows of 

 Jesus College, Oxford, and to the Royal Society, for grants to 

 enable me to proceed with my researches. 



Bibliography. 



1. Balfour, F. M. — "The Anatomy and Development of Peripatus 



capensis," posthumous memoir eiiited by H. N. Moseley and A. 

 Sedi^wick, 'Quart. Jouni. JVlicr. Sci.,' vol. xxiii, N.S., pp. 213 — 259, 

 Plates 13—20. 



2. BouviER, E. L. — " Sur rOrgouisatioii du Peripatus Thol loni," Bouv., 



'Bull, de la Soc. Ent. de France,' pp. 197, 198 (1898). 



3. BouviER, E. L. — "Nouvelles observations sur les Peripatus," 



'Comptes rendus Ac. des Sc.,' t. cxxvi, pp. 1521, 1525 (1898); 

 'Ann. Mag. Nat. Hist.,' vol. ii (7), pp. 354, 355. 



