312 PARASITIC WORMS. 



situated on a slight elevation of tbo cuticle. Near tlie tip of 

 the tail there is a pair of very minute sublateral papillae. 

 On the anterior lip of the cloaca there is a row of three sessile 

 papillae, that in the middle being slightly larger than the 

 others. On the posterior lip there are two pairs of papillae, 

 the pair nearer to the middle line being slightly smaller than 

 the other. The spicules are subequal, the left measuring 

 0.85--0.9 mm. in length, the right 0.7-0.8 mm. The right 

 spicule is slightly stouter than the left. 



The tail of the female is extremely short (not more than 

 0.7 mm.") and is very blunt and rounded. The vulva is situated 

 some distance (as much as 5 mm. in some specimens) behind 

 the posterior end of the oesoj;)'iiagus. The vagina runs, on the 

 whole, forward from the vulva, gradually widening into a 

 fusiform egg-chamber which may be bent upon itself. This 

 gives off two narrow tubes which continue to run forward into 

 the oesophageal region, there enlarging into two rather wide 

 uterine branches which turn and run almost straight posterior- 

 ly. The eggs measure about 0.06 x 0.035 mm. 



Family GNATHOSTOMIDAE. 

 Subfamily Gnathostominae. 

 Tanqua Blanchard, 1904. 

 Tanqua tiara v. Linst., 1879. 



Ascaris tiara von Linstow, 3879, p. 320. 



Tanqua tiara Blanchard, 1904, p. 478. 



(For full synonymy and description see Baylis and Lane, 1920, p. 259.) 



This species, which is abundant in Monitors wherever they 

 occur, was taken from Varcmus salvator at Kuching. 



SuPERFAmLY STEONGYLOIDEA. 

 Family STEONGYLID AE . 

 Subfamily Strongylinae. 

 Oesophagostomum Molin, 1861. 

 Oesophagostomum ovatum v. Linst., in Smidt, 1906. 



Strongylus ovatits von Linstow, in Smidt, 1906, p. 646, figs. 1--4. 

 Oesophagostotnum ovatum Railliet and Henry, 1912, p. 572, footnote. 



A single male specimen which is leferred provisionally to 

 this species was collected, in company with Streptopharagus 

 pigmentatus, from Hylohates mulleri at Mt. Murud. The 

 species was originally recorded by Smidt from Hylohates 

 syndactyliis and H. agilis in Sumatra. It is very inadequately 



