1096 MR. R. J. ORTLEPP ON THE 



(67) Physaloptbra nasilionis Gedoelst, 1916. 



Larvae: length 6 mm. Two lateral lips. External tooth 

 triangular. CEsophagus 2-23-2'33 mm. long. Nerve ring in 

 posterior quarter of muscular oesophagus. Tail conical and 

 blunt, 215 ;a long. 



Host ; Nasilio hrachyrhynchus. " Tissu conjonctif." Belgian 

 Congo. 



(68) Physaloptera bilabiata (Oreplin, 1829), Dujai-din, 1845. 



Two large lips, prominent and obtuse. Body much attenuated 

 anteriorly. Caudal extremity of male reflexed, alate, elliptical, 

 with four stalked papillae. Tail of female conical and obtuse. 



Length, 6 0-025, 2 ultra 0-025 ; breadth 0-001. 



Host : Lanius minor. Intestiue. (Extracted from Stossich's 

 Monograph.) 



(69) Physaloptera megalostoma Creplin, 1829. 



Syn. Spiroptera megalostoma Duj., 1845. 

 Ph. alata Stoss., 1889. 



Head naked, with large and simple mouth. Caudal extremity 

 of male with alse up to its tip ; female straight, with rounded 

 extremity. 



Host : Falco nisus. Proventriculus. Greifsw. 



This species is considered by Molin (1860) and Stossich (1889) 

 to be the same as Ph. alata E,ud. 



(70) Physaloptera inflata (MoL, 1860), Stossich, 1889. 

 Syn. Spiroptera inflata Mol., 1860. 



Length of female 7 mm. ; male unknown. 



Body striated and attenuated posteriorly. Cuticle of head 

 inflated ; no internal teeth on lips. Caudal extremity conical, 

 with an obtuse apex. Yulva in anterior part of body. 



Host : Falco unicinctus. Stomach and oesophagus. Brazil. 



(71) Physaloptera crassa v. Linstow, 1879. 



Male 14 mm. long by 1-5 mm. thick ; female 23 mm. long by 

 2 mm. thick. 



Lips pyramid-shaped, each with two outer papillfe and two 

 median teeth, of which the inner is tripartite. CEsophagus 1/4-7 

 of body-length. Cervical papilla? -6 mm. from anterior end, 

 situated dorsally and ventrally. 



Tail of male rounded, 1/11-7 of body-length. Biu-sa with six 

 pairs of papillae, of which the anterior five are stalked and 

 arranged in a longitudinal row close to the aniis ; the 6th and 

 unstalked papillae are found on the inner side of the 5th pair. 

 Cirri unequal, -66 and -36 mm, long. 



Tail of female rounded, l/22nd of body -length. Eggs 49 /x, by 

 26 fjL. 



Host : Alauda arvgnsis. Intestine. Stuttgart. 



