NEMATODE GENUS PHYSALOPTERA. 1087 



conical ; caudal pores in its posterior third. Muscular cesophagus 

 short ; oesophagus l/8th of body. 



Vulva in anterior quarter of body, 3"8 mm. behind oesophagus. 

 Vagina 2*16 mm. long, straight; egg-chamber long ; trunk long, 

 and divides dichotomously to give rise to four uteri. Recepta- 

 culum seminis oval. 



Host: Dipodillics campestris. Stomach. Bou-Saada. 



(44) Physalopxera abbeeviata Rudolphi, 1819. 



Syn. Spiroj)tera abbreviata (Rudolphi), Duj., 1845. 



Body robust. Two lateral lips large. External tooth large, 

 wedge-shaped, and truncated at its tip. Three inner teeth as in 

 Ph. paradoxa. Muscular oesophagus thick ; nerve ring at its 

 posterior end. Q]]sophagus long, l/3"6-l/5'4 in female, l/4-l/5"5 

 in male of body-length. 



Female. Length 7'8-20 mm., attenuated towards both ex- 

 tremities. Tail conical, with caudal pores just behind its middle. 

 Position of vulva variable, opening either in front of or behind end 

 of oesophagus ; divides body into ratio of 1 : 2-1 : 6. Unpaired 

 female genitalia, very long (3-5 mm.), consist of vagina, egg- 

 chamber, and relatively long trunk. Four uteri arise by dicho- 

 tomous division of trunk. Receptaculum seminis 150x120 /a, 

 sharply constricted o£t" from both uterus and oviduct. Eggs 

 50-60 X 37 /x. 



Male 7-5-11 mm. long. Tail elonga.te. Caudal alee large. 

 Outicular projections small and arranged in rows. Gloacal lips 

 non-salient. Arrangement of papillfe as in Ph. p)aradoxa. 

 Spicules very unequal ; left long and filiform, 2 mm. long ; right 

 short and stout, 180 x 45 /x. Both pointed. 



This description is based on Senrat's (1914 6, 1917 «) rede- 

 scriptions of the species from worms obtained from the stomach 

 of Lacerta ocellata. Bou-Saada. 



(45) Physaloptera pallaryi Seurat, 1917. 



Length of male 8"1-10'8 mm., length of female 12*4 (larvte) to 

 25 mm. 



Two lips, each with its anterior border slightly trilobed. Two 

 external papillte very small. External tooth triangular, pointed, 

 and recurved. Internal denticulate border formed of twenty 

 sharp denticles. Cervical papilho at junction of two oesophageal 

 parts ; excretory pore at same level or just posterior. Tail of 

 female very short and rounded ; caudal pores in its posterior 

 fifth. 



(Esophagus long, l/5th in the male, l/6th in the female of body- 

 length. 



Vulva 260-1200 /x in front of end of oesophagus. Vagina short, 

 350 /x long; egg-chamber 1'2 mm. long; trunk 650 /x long, and 

 divides dichotomously to give rise to four uteri. Eggs 65 x 32 ^u. 



