M. ANANT NARAYAN RAO                            253

                                          TABLE I— concld.

Name of worm

Cuticular ornamentation
along lateral
lines

Spicules

Post-anal
papillae

Micipsella indica,
n. sp.

Two narrow rows of in-
conspicuous bosses.
The cuticle of the tail of
male has no papillae on
dorsal or ventral surfaces
excepting the rugosities
mentioned above.

Sub-equal, dissimi-
lar. The left one
is longer and has a
distinct bulbous
enlargement in the
anterior third. End
pointed. Right one
tubular through-
out, but the end
widens out to some
extent to make it
appear blunt at its
extremity posteri-
orly.

Three pairs.

The above table shows clearly the differences between the two parasites,
so it is proposed to make a new species of the worm described and to name it,
Micipsella indica.

Specific diagnosis.—Female 120 to 140 mm. long. The simple mouth
is surrounded by a circlet of minute papillary projections. Cuticle ornamented
with two narrow rows of papillae following a more or less zigzag course along
the lateral lines. Vulva, a little in front of the posterior end of the oesophagus.
Opisthodelphes. Unsheathed larvae in uterus. Viviparous. Male 70 to
100 mm. long. Mouth oesophagus and cuticular ornamentation as in female.
Tail spirally coiled. Six to seven pre-anal and three post-anal papillae. Spicu-
les subequal. The left one is longer than the right and has a distinct bulbous
enlargement in its anterior third. The right one tubular with its posterior
end broadened somewhat.

Host.— Lepus nigricollis.

Location.—Portal vein.

Locality.—Tiruvannamalai, North Arcot district, Madras Presidency.

The liver showed passive congestion. It is not known if microfilariae
are met with in the peripheral blood of infected hares.

                                          REFERENCES

Kalantarian, E. V. (1924). Reports of the Tropical Institute of Armenia No. 1
(quoted by Yorke and Maplestone).
Seurat, L. G. (1921). Bull. Soc. d'Hist. Nat. del' Afrique du Nord, 12, 31 (quoted
by Yorke and Maplestone).
Yorke, W. A. and Maplestone, P. A. (1926). The nematode parasites of
Vertebrates. J. A. Churchill, London.