Entozoa from Birds in Uganda. 



4i;i 



The tail is bluntly rouiided at the tip. Almost the wholo of 

 the body-cavity is tilled by the uti-rus, which contains 

 enormous numb'is of e;^;;s. The lattui- measure 57 x 157 ^l- 

 62x40 /i. They have a rather thick .shell and contain a 

 coiled embryo. 



Cesto DA. 



4. Biuterina utyand(v, sp. n. 



Host : Cinnyris (/itlturalin. (Sunbird.) 



This is a small species, attaiiiinj^ a length oF about 2 cm. 

 upwards. The maximum width of the strobila is about 

 0*7 Mini. The scolex measures 0*4 mm. across, and the suckers 

 have a diameter of 0*2 mm., with a largo forwardly-dirccted 

 aperture. The rostellum has a muscular cushion at its apex, 



Fijr. .3. 



C.S. 



Biuterina uyanda; a gravid segment (from a whole preparation). 



C.S., cirrus-sac ; D., dorsal excretory vessel ; /'., cuticular frill ; 

 P., paruterine organ ; Ut., uterus ; V., ventral excretory vessel. 



looking almost like a fifth sucker. This measures 0*12 nun. 

 in diameter and bears two rows of about twenty-two hooks 

 each. The hooks of the anterior row are about 20 /i in 

 length, those of the posterior row a little shorter. All the 

 honks are of the triangular shape characteristic of tho genu.s. 

 Segmentation l)egins almost immediately beliind thescolox. 

 Each segment has a slightly raised fold or frill of cuticle 

 running round it transversely near its anterior end (see 

 fig. 3, F.). 



