NO. 2258 TAENIOID CE8T0DES OF DOGS AND CATS— HALL. 



17 



and handle; the guard is roughly conical with a protrusion toward 

 the blade at the point of union with the blade. The small hooks 



m. 



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m 



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'Ml 



y, . . 



\ 1 'ioimn 



Fig. 14.— Taenia balaniceps. Small hooks. Af- 

 ter Hall, 1910. 





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£*.^- 



ImiTi. 

 Tig. 15.— Taenia balaniceps. Matuee 

 SEGMENT. After Hall, 1910. 





^fl-yVr^ct^ 



fSi 



I 



(figs. 13 and 14) are 93 to 98 tx long. They have a strongly curved 

 blade ; the handle is short and thick and may be straight or present a 

 slight curvature dorsad at its distal 

 extremity; the guard is rather 

 oval in lateral outline. The suckers 

 are round, the bulb of the sucker 

 being 215 to 265 [x in diameter. 

 The neck is distinct and rather 

 tong, the maximum length being 

 about 1.2 mm. from the posterior 

 margin of the suckers to the first 

 distinct segmentation. The strobila 

 may attain a length of over 24 cm. 

 Mature segments (fig. 15) are ap- 

 proximately square in outline and 

 are about 2 inm. long by 2 to 2.5 

 mm. wide. Gravid segments (fig. 

 16) are 5.5 to 10.5 mm. long and 2 

 to 4 mm. wide. The genital canals 

 pass out to the genital pore be- 

 tween the dorsal and ventral longi- 

 tudinal excretory vessels and either 

 dorsal or ventral of the main nerve 

 trunk. The transverse excretory 

 canal is very large and tends to lie between two adjacent segments 

 rather than along the posterior border of the segments. The pri- 

 62055— 20— Proc.N.M.Vol.5E> 3 



V 





(mm. 



Fig. 16.— Taenia balaniceps. Geavid seg- 

 ment. After Hall, 1910. 



