304 Parasitic worms. 



NEMATODA. 



SUPERFAMILY ASCAKOIDAE. 

 Family ASCAEIDAE. 



Two specimens — oiie fragmentary and both immature — of 

 an Ascarid of doubti'al determination, apparently belonging to 

 the subfamily Ascarinae, were taken from the muscles of a 

 tree-shrew, Twpaia inontana. Locality : Mt. Dulit. 



Family HETEEAKIDAE. 

 Subfamily Subulurinae. 

 SuBULDRA Molin, 1860. 



SUBULURA PERARMATA Eatzel, 1868. 



(Figs. 1—3). 



Heterdkis perarmata Ratzel, 1868, p. 150, pi. iv, figs. 8 — 11. 

 Subulura (?) perarmata Travassos, 1913, p. 298. 

 Subulura (?) perarmata RaiUiet & Henry, 1914, p. 680. 



Host : Tarsius spcctrmn. Position : caecum. Locality : 

 Kuching. 



The inclusion in the collection of a number of well-pre- 

 served specimens of this species makes it possible to add a few 

 details to Eatzel 's original description, which appears to be the 

 only one at present available. The dimensions of the male, 

 according to Eatzel, were 6—7 mm. in length and 0.2 mm. 

 in thickness, and those of female 8-10 mm. and 0.4 mm. 

 respectively. The males among the present material attain 

 a length of 11 mm. and a maximum thickness of 0.33 mm., 

 while the females measure up to 14 mm. in length and 0.3-5 

 • mm. in thickness. The distance from the anterior extremity 

 to the end of the oesophagus, including the bulb, is 1.5—1.75 

 mm. The cylindrical portion of the oesophagus swells into a 

 club posteriorly, and is joined by a narrow neck to the bulb, 



