SPI ROSOMA CAUDATA NOV. GEN. ET NOV. SP. 



9 



sparse than in the adults, exhibit spiral winding only to a weak degree. 



Sarcocyte is pretty well developed ; it is usually a little thicker near 

 the septum and in posterior parts of the tail than in other parts. 



Kndocyte dense, especially so in the broad anterior part of deutomerite 

 and also in the swelling at tail end. In the protomerite of the young the 

 coarser endocyte granules were often observed to form a distinct mass in 

 direct touch with the apical pore, the remaining parts of protomerite being 

 filled up with comparatively fine granules. 



Nucleus is found in the broad anterior part of deutomerite. It is large 

 and vesicular, containing a single large spherical karyosome, which, in 

 many cases, was seen to contain a small vacuole. 



Measurements of variously old sporonts : 



\ 



\ 



Speci- \ 

 mens. \ 



Total length 

 of hody 



s § 

 - 2 



u 



►J g 



Length of 

 deutomerite 



Breadth of 

 body 



Diameter of 

 nucleus 



Diameter of 

 karyosome 



Length of the 

 broad part of 

 deutomerite. 



Length of the 

 tail part of 

 deutomerite 



A 



112 [A 



24 \>- 



88 (J. 



32 V- 











B 



127 „ 



27 » 



100 „ 



36 „ 











C 



184 „ 



32 „ 



152 



48 „ 



20 |X 



8 |i 







D 



192 ,. 



32 .» 



160 „ 



52 .. 



20 „ 



10 ,, 







E 



200 ,, 



20 ,, 



180 „ 



44 .. 







60 (X 



I 20 [X 



F 



264 „ 



32 ., 



232 „ 



60 „ 



20 „ 



12 ,. 



104 ,, 



128 „ 



G 



264 ,, 



24 If 



240 i, 



72 







100 ,.. 



140 „ 



H 



332 „ 



32 „ 



303 ,, 



80 „ 







120 „ 



180 „ 



I 



400 „ 



32 „ 



368 „ 



100 „ 







i6o „ 



208 „ 



a 0« 



cJi 



- T3 



£ 



20 [j. 



24 11 



28 „ 



24 h 

 28 ., 



Habitat : Anterior parts of the alimentary canal of Fon'aneria 

 cc.arctata Pocock. 



Infection : Heavy and common. 



