55 1 
occur posterior to segments which attain a width of 15 mm., while 
in D. parvus they occur after segments, the maximum width of which 
is only 8 mm., and in the case of the interpolated segments, after 
segments which are still narrower. 
(/>) The whole strobila appears always to be distinctly thicker 
than D. lotus , a point which is especially noticeable along the lateral 
margins. 
(r) Secondly there is no indication of the serration due to the 
projection of the posterior lateral angles, a feature well marked in 
D. lotus. 
(ft) The eggs of D. parvus (59-2 by 407 A*) are smaller and 
rounder than those of D. I at us (6871 by 44-45^)- 
(r) Calcareous bodies are absent in D. parvus , while they aie 
present (few) in D. latus. 
(a) On comparing with D. cordatus, we find that this has onl> 
50 immature segments while in one of the pieces of D. parvus theie 
were at least 200 segments before maturity. 
(b) The mature segments of D. cordatus are 7-8 mm., t 
maximum width of D. parvus is 5 mm. 
(c) The quadrate segments of D. cordatus measure 5-b mm. 
square. Those of D. parvus 4 by 4 mm. 
(d) The uterine loops of D. cordatus are 6-8. Those o 
parvus 4-5. 
(0 Eggs, D. cordatus 75-80 by 50. D. parvus 59 2 by 4 ° 7 ^- 
f) Calcareous bodies. D. cordatus , 28-30, numerous. D. parvu , 
absent. 
The characters of this bothriocephalid seem to me j 
sufficiently distinct to warrant the making of it a new sp - g 
propose the name Dibolhriocephalus parvus. The tyP e p 
deposited in the museum of the Liverpool School o 1 P 
Medicine. 
II. A NEW HUMAN CESTODE 
( Taenia brearneri , n. sp) 
'■ !■'!■ w. ' — """ 
x :s - 
'em, and that they are got through drinking sour m 
