PLATE VI. 



1. 



la. 



lb. 



1C. 



Id. 



le. 

 If. 



2. 



( 2a. 



26. 



2c. 



2<Z. 



3. 



3a. 



36. 



Limnias ceratophylli 



Limnias annulatus 



Cephalosiphon Limnias 



ventral view . . . . . . . H 



side view ; corona contracted . . . . II 



side view ; corona expanded . . . . . H 



a cluster of tubes ....... H 



head, side view ; z x edge of chitinous \ after Judge 



plate . . . . . . [ Bedwell 



buccal funnel, mastax and oesophagus . . . G 

 head and neck ; ventral view showing vascular 



system ........ H 



young female, dorsal view . . . . . H 



ventral view .... 



side view ; retracted 



head ; dorsal view .... r after Mr. Cubitt 



head ; seen from above . 



head ; corona contracted 



group : x, y, z successive stages of growth . . H 



dorsal view ........ H 



ventral view . H 



