292 E. C. POLLARD. 



Compared with P. torquatus. — P. torquatus is pos- 

 sessed of a much larger number of legs than the Dominican 

 form, having 41 or 42. The colouring is also strikingly 

 different, P. torquatus being characterised by a bright 

 yellow band behind the head on the dorsal surface. 



Bibliography. 



Complete lists of the literature referring to Peripatus have 

 already been published by Mr. Sclater and Mr. Sedgwick, and 

 therefore the following list includes only the papers to which 

 special reference is made in the above description. 



1. Bell, F. J. — " Note on a Peripatus from the Island of Dominica, West 



Indies," 'Ann. Mag. Nat. Hist.,' 5th sen, xi, 1883. 



2. Gaffkon, E. — " Beitrage zur Anatomie uud Histologie von Peripatus," 



'Zool. Beitrage' (Schneider), Bd. i, 1885. 



3. Sclater, W. L. — " Notes on the Peripatus of British Guiana," ' Proc. 



Zool. Soc. London,' 1887. 



4. Sedgwick, A. — "A Monograph on the Species and Distribution of the 



Genus Peripatus (Guildiug)," ' Quart. Journ. Micr. Sci.,' New Ser., 

 xxviii, 1888. 



