154 



T. B. ROSSETER ON HYMENOLEPIS UPSILON, 



Descriptive 

 Kos. 1, 2, 3, 4, Taenia inicrosoma Creplin 



No. 1. Creplin 



No. 2. Pagenstecher 



No. 3. PfaffandOlrik 



SCOLEX. 



Variable in 

 form, suckers 

 large, neck short. 



No description. 



No descriDtion. 



No, 4. Krabbe . 



No. 5. Rosseter 



No description. 



Sub-globular, 

 but variable in 

 form, four orbi- 

 cular suckers, 

 neck short. 



EOSTELLUM. 



Elongate, clavi- 

 form. 



No description. 



Hooks. 



Inerme. 



10, small hooks 

 no length given. 



Long slender 

 spindle; knob 

 formed. 



No description. 



Elongate, fili- 

 form ; bulbous or 

 knobbed. 



10;0-037-0-061mm. 



in length. 



10; 0-043 mm. 

 in length. 



10 ; 0-035 mm. in 

 length. Drepanido- 

 tae?iia. 



