NEW WORMS 
217 
References 
Berghe, L. v.d. and Verylsteke, C. (1936). Quelques Setaria du Congo Beige, avec la description 
d’une espece du Potomochere. Rev. Zool. Bot. apr., 28, 421-430. 
Bernard, P. N. and Banche, J. (1911). Sur une filaire peritoneale due pore. Bull. Soc. Path, exot., 
4, 482-5. 
Chatterji, R. C. (1939)- Report on two unrecorded nematode parasites from domesticated animals of 
India or Burma. Ind. J. vet. Sci ., 9, 323 - 333 . 
Railliet, A. and Henry, A. (1911a). Sur une filaire peritoneale des porcins. Bull. Soc. Path, exot., 
4, 386-389. 
Railliet, A. and Henry, A. (1911 h). Remarques au sujet des deux Notes de Mm. Banche et Bernard. 
Idem., 4, 485-488. 
Sandground, J. H. (1933). Report on the nematode parasites collected by the Kelley-Roosevelt 
expedition to Indo-China with descriptions of several new species. Z. Parasitenk., 5, 542-583. 
Thwaite, J. W. (1927). The genus Setaria. Ann. trap. med. Parasit., 21, 427-466. 
Setaria javensis Vevers, 1922 from a mouse-deer. 
Although Vevers described this species from Tragulus “ Stanley anus ” ( =T . javanicus ) 
from Java twenty-seven years ago, there has been no further record of it in literature and the 
male still remains unkown. Thwaite (1927) says the following in his useful summary of the 
then known members of the genus Setaria Viborg 1795 : The description of S. javensis is 
inadequate, and the figure is not sufficiently clear to enable the exact structure of the mouth 
parts to be determined in detail. The worm could, with advantage, be redescribed and figured. 
Recently, a pet mouse-deer or Plandok, Tragulus javanicus , belonging to the late Sir 
Edward Gent, died at Government House, Kuala Lumpur, Malaya and Mr. J. Davie, the 
Veterinary Officer, in the course of a post-mortem examination found three females and one 
male Setaria in the thoracic cavity. The specimens which had been in normal saline for a 
few days were somewhat damaged. Examination showed that they correspond closely to S’. 
javensis Vevers 1922 and the opportunity is taken to redescribe the female and add a description 
of the hitherto unknown male. Malaya thus becomes an additional area of distribution. 
Description (Figs. 6 and 7) 
The filiform worms are whitish in colour and taper towards both extremities. The head is rounded 
and not separated from the rest of the body. The posterior ends of both the male and female worms are 
slightly coiled. Cuticular striations are not evident and no cervical papillae are seen. 
The mouth is surrounded by a simple oval thin chitinous peribuccal ring which is not notched or 
prolonged anteriorly to form lips. The greater diameter, which measures 22^, is dorso-ventral in direction, 
while the lesser diameter measures about 14^.. The head is provided with two lateral and four pairs of 
submedian papillae. 
The females, all of which are gravid, measure from about 50 to 80 mm in length by a little under 
0.5 mm in maximum width. The mouth is followed by the muscular part of the oesophagus which has 
a length of between 0.33 and 9.4 mm; this passes into the thicker and glandular portion which measures 
1.7 to 2 mm in length and 0.1 mm in maximum width. The total length of the oesophagus is thus small 
and compared with the length of the worm, gives a ratio of between 1 :22 to 1 :24.7. The nerve ring is 
found at a distance which varies between 0.17 and 0.185 mm from the anterior extremity of the worm. 
The vulva is situated between 0.4 and 0.45 mm from the head end. It leads through a muscular ovejector 
measuring about 0.2 mm in length to a muscular vagina 6 mm long. The terminal part of the uterine 
branches is filled with embryos which measure between 0.12 and 0.2 mm in length and about 7.510. in 
width. The egg in utero measures 30 to 40 tr by 18 to 22\i and contains a coiled larva. Anteriorly, the 
coils of the genital ducts reach up to the level where the oesophagus ends and posteriorly they extend to 
within 0.65 mm of the tail end. The anus is situated 0.26 to 0.28 mm from the posterior extremity. 
The tail tapers gradually and ends in a small knob. No cuticular appendages are present at the tail end. 
The single male in the collection measures 32 mm in length by 0.22 mm in maximum breadth. 
The muscular part of the oesophagus measures 0.35 mm and the posterior glandular portion 1.9 mm. 
The total length of the oesophagus, compared with the length of the worm, gives a ratio of 1 H4.2. The 
nerve ring encircles the muscular portions of the oesophagus at a point 0.2 mm behind the anterior 
extremity. The tail is conical in shape and rather blunt. It measured 0.1mm in length. There are six 
pairs of caudal papillae of which four are post-anal. In the midline, for a short distance anterior to the 
caudal papillae, there are a large number of minute bosses on the cuticle. Caudal appendages are not 
present. The left spicule is about 0.2mm long and shows the usual division into a tubular proximal 
portion and a twisted indefinite distal portion. The broader right spicule, which shows a characteristic 
spur on the ventral edge near the tip, measures about 0.06 mm in length. 
MALAYA, No. 26 , 1953 
