NEMATODE GEISTUS PHtSALOPTERA. 1097 



(72) Physalopteka TRUNCATA Schneider, 1866. 



Male 25 mm. and female 33 mm. long. 



Outer tooth knobbed, " mit beilartiger Schneide." Inner 

 teeth heart-shaped. 



Four pairs of lateral and stalked papillae on male tail ; the 

 distance between the 2nd and 3rd somewhat greater than that 

 between the 1st and 2nd, and between the 3rd and 4th. Three 

 pre-anal papillte in a row, the central one of which is small. The 

 1st and 2nd pairs of post-anal ventral papillae small and just 

 behind anus ; three larger pairs further down. The ratio of the 

 distances between the 2nd and 3rd, the 3rd and 4th, the 4th and 

 5th, the 5th and the tip of the tail is about as 1:1:2:2. 



Host: Phasianus gallus. Stomach. Brazil. 



(73) Physaloptera fusiformis v. Linstow, 1902. 



Male 18 mm. long by 1*38 mm. thick ; female 30 mm. long by 

 1'97 mm. thick. 



Two rounded lips, each with three small papillae on outer 

 edge. (Esophagus of male 1/3 "8, of female 1/5*3 of body-length ; 

 tail of male l/23rd, of female l/20th of body-length. Bursa 

 small and heart-shaped; four pairs of lateral stalked papillae; ono 

 pair of sessile papillae in front of anus and separated from each 

 other ; a pair of sessile papillae just behind anus ; an unpaired 

 papilla in middle of tail, and three more pairs behind it and 

 equidistant from each other. 



Vulva in anterior half, and divides body into ratio of 13 : 56. 

 Eggs 81 X 26 fji. 



Host : Micropogon sp. Breslau Museum. 



(74) Physaloptera dentata v. Linstow, 1883. 



Male 7 mm. and female 12 mm. long and '96 mm. thick. 



Two large lips, each with a large tei'minal outer tooth and 

 spike-like inner tooth. Cervical papillae '48 mm. from head end. 

 (Esophagus 1/4-2, tail of male 1/1 1th, of female l/25th of body- 

 length. 



Bursa lanceolate, alae ornamented with conical tubercles 

 arranged longitudinally ; four pairs lateral stalked papilla?, all 

 are pre-anal ; one unpaired papilla in front of anus and three 

 pairs behind it ; pairs 1 and 2 close together in middle of tail, 

 often fused together ;• pair 3 at junction of last two tail quarters. 



Eggs 52 X 43 /x,. 



Hosts : Agama sanguinolenta. Intestine. Turkestan. 



Vipera herus. ? ,, 



Phrynocephalus auritus. Mouth and intestine. ,, 



(75) Physaloptera britanica Skrjabin, 1916. 



Length of immature female 42 mm., breadth 6 mm. Male 

 unknown. 



