*34 
0 042 to 0-046 mm. long and 0*023 tc > 0027 mm. wide. This size, by 
the way, is the same as that of the eggs of Dicroc . lanceatum . 
Gastrodiscus secundus n. sp. 
A small jar containing about a dozen specimens and a label on 
which there was written in pencil: “Gastrodiscus Sonsmonis Cobbifrom 
mule.' They were collected by GILES in Assam, who states that they 
are also found in equines throughout India. In their external appear¬ 
ance they absolutely resembled the African Gastrodiscus aeg) ptiacui 
(Cobbold) 1877 (= Dipl os tom a aigypriacum Cobbold 1877, 
- Gastrodiscus polymasios LEUCKAKT 187;. ■ Gastrodism 
sonsinoi Cobuold 1877), with the sole difference that all of them 
were noticeably smaller . Three specimens at present at my disposal 
si iow a length of 7, 8 and 8 mm., and a maximum breadth of 4-5,5 and 
5 nun.; the corresponding measurements in Gastrodiscus acgyptiacus 
being 10 to 13 nun, and 7 to 9 mm. 
I he body shows the characteristic division into two parts: the 
c) indrical 01 slightly dejjressed cephalic portion, and the broad oval 
c isc, at the end of which the second sucker is placed. In the 
specimens under discussion the former is about 1*35 mm. long and at 
ise 1 6 mm bi oad. Near its top, there appears on the ventral 
, C moudl °P e mng, about 0 37 nun. wide. In its neighbour- 
... , 16 CUt j c ^ e shows a large number of small circular or oval 
Tliev a ' V P ro J ect externally in the shape of small tubercles 
mouth n 3pparentI y tactile papillae similar to those found round the 
of the ce 27 m a,lied f0rniS ‘ Beh » ld mouth the ventral surface 
abdominal dis/iT^n excavated along the median line. The 
rolled inwards to * PParently niuch contracted, for its free edge is 
terminal disc are vi ^1 30 extent dlat the ventral surface and the 
it lies open to the b ° ldy ‘ * he ventra l surface is, so far as 
‘‘papillae,’’ or “ pseud DSC1Ver ’ dense ly covered with tlie well-known 
like openings. Some ^ Ucgers Scaring on their summits small slit- 
represent small knobs ° BleSC 01 £ ans ar e everted and, in this state, 
hours. On inspectino^t? 601 ^ 8 ’ somew ^ iat over their retracted neigh- 
circular hole surrounded m W ° rms Wlth a magnifying glass, a small 
ln dle midventral line 1 ^ & S ° lnevv ^ iat raised brim becomes visible 
llle cephalic cone. t? ° Ut 1 ^ to 1 "5 m m. distant from the base of 
"as present at the same place in all the 
