FROM THE SOCIETY S GARDENS. 



645 



Philopterus ceblebrachys Nitzsch (5, p. 77). 



Manj'- examples, male and female, from Nyctea nyctea (Linn.) 

 and Strix aluco Linn. This very distinct round-headed species 

 has been reported also from Nyctala tengmalmi (Gmel.), Sitrida 

 ulula (Linn.), and others. 



Philopterus Athene Mjoberg (6, p. 115), 



Many examples of both sexes, from Athene noctua (Scop.) 

 (Cairo). Mjoberg's specimens caine from Athene glaux (Savign.). 

 The British Museumi possesses specimens presented by the Hon. 

 N. C Rothschild, and taken on an unidentified Owl in Abyssinia. 



Male Rej)rodihct%ve System of Owl Philopteri. 



Of the three species dissected — P, cm-sor, P. ceblebrachys, and 

 P. athene, the vesiculse of P. cursor and P. atJiene are somewhat 

 alike, while that of P. ceblebrachys diifers strongly from both : — 



Philopterus cursor (text-fig. 1). — There are the usual two 



Text-figure 1. 



Philopterus cursor. Male reproductive system and copulatory apparatus. X 100. 



T. testis. VD. vas deferens. VS. vesicula seminalis. D. ductus. BP. basal 

 plate, a. transverse piece. P. paramere. JEP. endomeral plate. 



pairs of testes, large pear-shaped organs, the round ends 

 approximated and united by a commissure. The vesicula semi- 

 nalis in a Philopterus of the cursor type, perhaps P. nudipes P. 

 from Asio sp., is a large oval organ of much the same form 



