Vll 



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2, On a Collection of Lizax-ds from the Malay Peninsula, made 



by Members of the " Skeat Expedition," 1899-1900. By 

 E. P. Laidlaw, B.A., Assistant Lecturer and Demon 

 strator at Owens College 301 



3. On the Pterylosis of the Giant Humming-bird {Patagona 



gigas). By Professor D'Arcy Wentworth Thompsoi^, 

 C.B., P.Z.S 311 



April 16, 1901. 



The Secretary. Eeport on the Additions to the Society's 



Menagerie in March 1901 324 



Mr. Sclater. Exhibition (on behalf of Mr. Phil Pobinson) of 



an old eugraving of the Mountain Zebra 325 



Mr. L. A. Borradaile. Letter from, pointing out that the 

 Crustacean described by him as ArmadilUclium jxicijicum 

 belongs to the genus Cuhai'is 325 



1. Revision of the Ehynchota belonging to the Pamily Coreidce 



in the Hope Collection at Oxford. By W. L. Distajst. 

 (Plates XXIX. & XXX.) 325 



2. On some Earthworms from British East Africa ; and on tlie 



Spermatophores of Polytoreutus and Stuhlmunnia. By 

 Eea]s-k E. Beddaed, M.A., E.E.S 336 



3. Some Notes upon the Anatomy aud Systematic Position of 



the Cicouiine Genus Anastomus. By Peais^e: E. Beddaed, 

 M.A., P.E.S 365 



4. On the Identity and Distribution of the Mother-of-Pearl 



Oysters ; with a Revision of the Subgenus Margaritifera. 

 By H. Lystee jAMEsoif, B.A., Ph.D. 372 



