70 BOARD OF AGRICULTURE. 
tinct joints. These are at first very smalland short, gradually 
becoming broader and squarish, then oblong. The largest 
are about a third of an inch in breadth and quite thin and flat 
(Figure 52). The sexually mature joints or proglottides are 
twice as long as broad, and contain the ovaries and a long 
central egg cavity or uterus, with 7 to 12 lateral branches, 
which are irregularly lobed and divided (Figure 54) ; and also 
the male organ, or testicle, in the form of branched tubes, 
communicating with a penis, which is situated on one edge 
of the joint, in front of the female genital orifice, and has a 
curved or sickle-shaped form. The genital openings are either 
on the right or left edge indifferently, in the successive joints. 
Figure 49. Figure 52, 
Fig. 51. 
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The young or larval state produces the white spots known as 
Figure 49.—Pork “ measles” ; natural size ; Hearth and Tlome, after Owen. 
Figure 50.—Young tape worm from measles of pork; and Fig. 51, head of same, 
more enlarged ; Hearth and Home, after Owen. 
Figure 52.—Pork tape-worm (Leenia so’ium); less than natural size; Hearth and 
Home, after Owen. 
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