Bt Herdman on the Inveiiehrate Fauna of Lamlash Bay. 29 



as Forbes stated it was in the habit of doing ; my specimens 

 performed this feat frequently, especially when I wished to 

 sketch them in the expanded position. 



Eolis despeda (Johnst.). 



Common on Laminaria and Zoophytes 

 attached to buoy at south entrance to bay, 

 and on wreck off the south-west side of 

 Holy Isle. 



Proctonotid.?-:. 

 Prodonotus mucroniferus (Aid. and Han.). 



South-east of Holy Isle, 15 fathoms. 



DOTONID^. 



Doto fragilis (Forb.). 



Port Lewis to the Cordon, 10 to 20 

 fathoms ; south - east of Holy Isle, 15 

 fathoms ; off Lighthouse, 10 fathoms ; off 

 " Dutchman's Eock," 20 fathoms. 



D. coronata (Gmelin). 



Common in 10 to 20 fathoms from Port 

 Lewis to the Cordon, etc. ; also on Lami- 

 naria attached to buoy and wreck. 



DeNDRONOTIDtE. 



Hero formosa (Loven) (Plate I., Figs. 4-6). 



This rare Swedish Nudibranch came up in 

 the dredge on two occasions last summer. 

 My specimens differ somewhat in shape, 

 and notably in the number of branchial 

 processes, from those figured by Sars,* 

 and at first I was inclined to describe them 

 as a new species of Hero ; but I believe 

 it is safer to refer them to Loven's species, 

 at any rate until more specimens have 

 been obtained. 

 When the animals were living and ex- 



* G. 0. Sars — Bidrag til Kiindskaben om Norges Arktiske Fauna; I. 

 Mollusca regionis arcticse Norvegise, p. 316, Tab. 28, Fig. 3, a-d; Christiauia, 

 1878. 



