1092 ME. R. J. ORTLEPP ON THE 



(56) Physaloptera guiarti Garin, 1913. 



Length 35 mm., breadth 2 mm. 



Body cylindrical, elongate, and yellowish in colour ; trans- 

 versely striated. Anterior extremity with chitinous expansions. 



Teeth absent. 



Male caudal extremity bent, with margin of alse lobulated and 

 corrugated ; anal aperture in middle of bursa. Four pairs of 

 circumcloacal papillae. No internal papillas. 



Host : Leptonychotes weddelli. Stomach. S. Pole. 



From Garin's brief description and crude drawing, this 

 parasite is a Physaloptera, but the absence of teeth and internal 

 papillee on the tail of the male is veiy remarkable, and suggests 

 the possibility of their having been overlooked. 



(57) Physaloptera ccelebs v. Linstow, 1897. 



Male 7 mm. long x "51 mm. thick. Female unknown. 



Oesophagus 1/4-6, tail 1/15-4 of body-length. 



Four pairs of lateral stalked papillte. Three pre-anal ventral 

 papillse arranged in a triangle. Five pairs of post-anal ventral 

 papillse, of which the last two pairs are stalked ; pairs 1 and 2 

 ju-st behind last pair of lateral papillee ; pairs 3, 4, and 5 in 

 posterior third of tail. 



Host : Centetes ecaudatits. Madagascar. 



(58) Physaloptera dispar v. Linstow, 1904. 



Length of male 16-6 mm. by "53 mm. broad ; length of female 

 25 mm. by -95 mm. thick. 



Two rounded lips surrounded by a cuticular collar. External 

 tooth rectangular, with two small papilJje on either side ; further 

 back there is a larger papilla on either side. CEsophagus in 

 male 1/4-9, in female 1/6-2 of body-length. 



Tail in both sexes rounded, and forms 1/1 9th in the male and 

 l/26th in the female of the body-length. 



Caudal bursa of male with four pairs of elongately stalked 

 papillfe ; five sessile papil]a3 round the anus, one being pre-anal 

 and four being post-anal ; four further pairs of post-anal papillfe, 

 of which the most anterior pair is just behind the level of the 

 last pair of stalked papilla?, the 2nd and 3rd pairs close together 

 at about the middle of the tail, and the last towards the tail tip. 

 Spicules very unequal ; right broad and -35 mm. long, the left 

 slenderer and -62 mm. long. 



Yulva divides the body into ratio of 3:8; eggs thick-shelled 

 and embryonated, 57 x 39 /x. 



Host : Erinaceus albiventris . Stomach. Nigeria. 



Seui^at (1917 h) has identified this species with his specimens 

 of ^^ JPh. cltmsa." If von Linstow's description of the lips and 

 arrangement of the bursal genital papillse is correct, then this 

 species cannot be regarded as the same as Seurat's specimens. 

 Consequently, I think that until von Linstow's specimens have 



