NEMATODE GENUS PHYSALOPTERA. 1085 



(39) Physalopteea crosi Seurat, 1914. 



Male 22 mm. long by 660 /x thick, female 12-22 mm. long. 



Two lips, large, each with two external papillte. External tooth 

 large and triangular ; inner median tooth very small and tri- 

 partite. Cervical papillae situated immediately behind level of 

 nerve ring. 



CEsophagus l/6th in male, l/4th in female of body-length. 



Male bursa plus well-developed alte, and ornamented with, 

 tubercles. Arrangement of its papillse as in Ph. galinieri and 

 Ph. subalata, except that an unpaired sessile papilla is present 

 between the last pair of ventral papillae. Spicules equal, 300 /j, 

 long. 



Tail of female short, with caudal glands opening in front of its 

 middle. Vulva in anterior third, 1 mm. behind oesophagus, 

 Yagina shorter than egg-chamber, which is 1 200 /x long x 300 fi 

 broad; trunk 400 /x long, and divides to give rise to the con- 

 nections of the two uteri. Eggs 55 x 25 fx, embryonated. 



Host : Accipiter nisus. Stomach. Mascara. 



(40) Physaloptera galinieri Seurat, 1914. 



Length, male 21 mm., breadth 780 /x ; length, female 17-34 mm. 

 by 1"05 mm. thick. 



Two lateral lips, each with a large and very conspicuous 

 tripartite inner tooth. 



(Esophagus l/6th in male and l/7th in female of bod3^-length. 

 Cloaca 925 /x. from end of tail in male. Five pairs of stalked papillae, 

 of which the anterior 4 pairs are arranged circumcloacally, and 

 the last some distance further back. Eleven ventral papillae, with 

 short stalks and approaching mid-ventral line ; of these, 3 are 

 pre-anal, 4 immediately behind the anus in a transverse row, 2 at 

 the level of the posterior pair of circumcloacal stalked papillae, and 

 2 midway between the posterior stalked papillae and tip of tail. 



Spicules short, 360 and 380 /x long. 



Vulva a short distance in front of middle of body, far removed 

 from hind end of cesophagus. Ovijector passes forwards ; vagina 

 2 mm. long; egg-chamber oval, 600 /x long; trunk 200 /x long. 

 Two uteri, one of which passes forwards and then recurves 

 backwards, whereas the other passes straight back. Recep- 

 taculum seminis sharpl}^ constricted off from oviduct and uterus, 

 rounded ; diameter 240 /x. Eggs 65 x 35 /x. 



Host : Aigle. OEsophagus and stomach. Ain-Oussera. 



(41) Physaloptera leptosoma (Gervais, 1848), Seurat, 1917. 



Syn. Strongylus leptosomus Gervais, 1848. 



Ph. chamceleontis Gedoelst, 1916. 

 Length of male 7-8-20 mm., of female 12*5-45 mm. 

 Two lips ; external tooth cuneiform, slightly knobbed at its tip ; 

 internal tooth spike-like ; lateral teeth bicuspid (these teeth more 



