86 Scientific Proceedings, Royal Dublin Society. 
Prate V. 
Fie. 
1. Diglena revolvens. 
1G top 9 side view. 
2. Diglena elongata. 
Qa; es, se side view. 
3. Diglena rugosa. 
3a. ” ” 
4. Distemma platyceps (?), Gosse. 
4a. “) e side view. 
5. Mastigocerca bicristata (?), Gosse 
Prate VI. 
Fic. 
1. Mastigocerca brachydactyla. 
2. Colurus pachypodus. 
3. Colurus tesselatus. 
Soa ne side view. 
4. Unknown. 
‘4a. oS side view. 
ADDITIONS. 
5. Notops forcipata. 
6. Notommata lucens. 
6a. on “ side view. 
Prats VII. 
Fie. 
1. Notommata gigantea, ventral surface, flattened. 
la. ee He side view. 
10. A dorsal view showing gastric glands. 
2. Furcularia micropus, Gosse (?). 
2a. is 9 side view. 
26. a Be when swimming, with body shrunk up to half 
; its length. 
3. Diglena Hudsont, 
4. Diglena dromius. 
4a. ;, a side view. 
