ANNELIDA. 107 



Leptoplana flexilts, Dalyell ; Johnst. Cat. p. 6. 

 Abundant under stones between tide-marks. 



Leptoplana atomata, Miiller ; Johnst. Cat. p. 6. 

 Common in the same localities. 



Leptoplana ellipsis, Dalyell ; Johnst. Cat. p. 7. 

 Not uncommon between tide-marks. 



Order II. Rhabdoccela. 

 Fam. 1. Proboscidea, J. V. Cams. 



Genus Prostomum, (Erst. 

 Prostomum linear 'e, (Erst. ; Johnst. Cat. p. 62. 

 Occasionally found on stones brought from the rocks near 

 low water. 



A curious form, having a pointed snout with a globular 

 process posteriorly, and a dull pinkish alimentary canal, was 

 procured from the fishing-boats ; but unfortunately I possess 

 only the drawing, upon which, however, every reliance can be 

 placed (Plate V. fig. 9). 



Fam. 2. Schizostomea, 0. Schm. 



Genus Convoluta, (Erst. 

 Gonvoluta paradoxa, Abildgaard ; Johnst. Cat. p. 16. 

 Very common amongst seaweeds and Corallina in tide- 

 pools. 



Convoluta Diesintjii, Schmidt (?), Sitzungsb. der k. Akad. 1852. 

 Occasionally under stones in rock-pools. 



p2 



