338 Memoirs of the Indian Museum. [Vol. VII, 



15 mm. in length and up to 0-4 mm. in thickness. The body tapers uniformly ante- 

 riorly to a small head which measures 0*023 to 0*025 mm. in diameter. The mouth 

 contains the single small lancet characteristic of the genus. The cervical spines are 

 situated at about 037 mm. from the anterior end. The oesophagus is slender, and 

 measures about 1*2 mm. in length. It is encircled by the nerve-ring at about 0*25 

 mm. from the anterior end. The excretory pore is just behind the level of the nerve- 

 ring. 



The vulva is slightly prominent, but possesses no overhanging anterior lip such 

 as is found in H. contortus. It is situated at about 11 mm. from the anterior end. 

 There is a short, transverse vagina, from which well -developed anterior and posterior 

 ovejectors are given off. The eggs in the uterus measure o*o8-0'09 mm. X 004-005 

 mm., and their contents are unsegmented. The tail is long and slender. The anus is 

 situated at about 037 mm. from the tip. 



In addition to the females this batch of specimens includes one male. The bursa 

 of this specimen is incomplete, and the whole worm so badly damaged that we have 

 found it impracticable to give a description of the male. 



Family METASTRONGYLIDAE, Leiper, 1908. 

 Subfamily RICTULAEIINAE, Hall, 1913. 

 Genus Rictularia, Fröl., 1802. 

 Rictularia, sp. 



A single female specimen, taken from the intestine of a palm-civet (Pnradoxurus 

 hermaphroditus bondar, 1 though labelled " Paradox ums niger"), caught in the 

 Museum compound, Calcutta. 



Rictularia plagiostoma, (Wedl) has been recorded as a parasite of a palm-civet 

 by Leiper. 2 The present specimen, however, does not agree with the careful descrip- 

 tion of R. plagiostoma given by Jägerskiöld (1909), and we refrain from attempting to 



attach a specific name to it. 



Fam. incert. 



Genus Scolecophilus, nov. 

 Scolecophilus lumbricicola, sp. nov. 

 (Figs. 70,71.) 

 Host: an earthworm (Perionyx m'intoshi, Beddard). Locality: Nepal Valley. 

 This nematode was found by Dr. J. Stephenson in the body-cavity of the host, 

 in the tenth and eleventh segments. He noted that in the former segment they 

 were surrounded by masses of what appeared to be the spermatozoa of the host. 

 The material is not in a perfect state of preservation, having, no doubt, been removed 

 from the host after death. We are unable, therefore, to give a very complete 

 account of the anatomy. The species, however, shows certain remarkable features 

 which make it worthy of a brief description. 



1 See Robinson and Kloss, Rec. Ind. Mus., XIX, Part IV, 1920, p. 178. 



2 Proc. Zool. Soc. London, 1911, p. 620. 



