NEMATODE PARASITES OF BIRDS 309 



Orlepp notes that this is probably not a Physaloptera, and places 

 it in Species Inquirendae, the rounded lips without teeth and 

 the arrangement of the caudal papillae differing from those in 

 Physaloptera. 



PHYSALOPTERA. species Parona. 1885 



Host. — Primary : Ibis aethiopica; secondary : Unknown. 



Location. — Orbital cavity. 



Morphology. — Physaloptera (p. 295). 



Male unknown. 



Female 32 mm. long. Head (fig. 371) with winglike appendage 

 and 2 or more papillae or lips. 



Life history. — Unknown. 



Distribution. — Africa (Abyssinia) . 



The so-called " winglike appendages " of the head in the figure of 

 this species resemble the cuticular sheath which projects forward 

 over the head of several species of Physaloptera. The description is 

 too inadequate for any decision as to the status of the species. 



PHYSALOPTERA STRONGYLINA Rudolphi, 1819 



Synonym. — Spiroptera affinis Dujardin, 1845. 



Hosts. — Primary : Cuculus melacoryphus and C. seniculus; second- 

 ary : Unknown. 



Location. — Stomach and intestine. 



Morphology. — Physaloptera (p. 295) : Head continuous wtih body. 

 Mouth with lips. Body much attenuated anteriorly. 



Male 6 to 8 mm. long. Caudal alae vesicular. Spicules fairly long 

 and thick. 



Female 15 to 21 mm. long. Posterior extremity straight, rounded. 



Life history. — Unknown. 



Distribution. — South America (Brazil). 



Ortlepp notes that this species is wrongly attributed to this genus 

 but that the description is too inadequate to warrant its transfer to 

 any other genus. 



PHYSALOPTERA OVATA Linstow. 1907 



Hosts. — Primary: Astur melanoleucus ; secondary: Unknown. 



Location. — Proventriculus. 



Morphology.— Physaloptera (p. 295) : Cuticle with transverse stria- 

 tions. Mouth opening surrounded by 6 cones, behind them a circle 

 of 4 large stalked submedian papillae. A thickening of the cuticle 

 projects forward in a 55(V long spindle-shaped swelling over the 

 head end. 



Male 13.8 mm. long by 66(V wide. Esophagus 1/4.4 of total body 

 length. Caudal alae (fig. 372) oval, smaller in posterior part; large 



