Beaumont — Fauna and Flora of Valencia Harhour, Ireland. 847 



ring chiefly on Antenmdaria. In the summer of the following 

 year only a single example was seen ; it was found on one of 

 the hulks. 



Doto pinnatifida (Montagu). 



Boto pinnatifida, A. & H. 



Dredged on three occasions in Yalencia Harbour, probably 

 on Antennularia. I have seen a considerable number of 

 examples of this species ; it is by no means uncommon in the 

 Plymouth district. I consider it a well-defined species ; apart 

 from structural features, its colouring is fairly constant and 

 characteristic, enabling one familiar with its appearance to 

 distinguish it at a glance from its British allies. 



Distribution. — S. Devon (Montagu; "W. Garstang; "W. I. B.); 

 Isle of Man (W. I. B.) ; Guernsey (Alder) ; Eoscofi (Hecht). 



Doto fragilis (Forbes). 



Doto fragilis, A. & H. 



Common both in 1895 and 1896 on Hydroids (more particu- 

 larly Antemiularia) dredged on the Shell- beds in Valencia 

 Harbour. 



Family— DENDEON'OTID M. 



Genus — Deistdeonotus. 



Dendronotus arborescens (0. F. M.). 



Dend/ronotus arborescens, A. & H. 



Yery numerous, and of large size on one of the hulks ; a few 

 only on the other. Not found by us anywhere else at Valencia, 



Section II. — Nudibrancliiata Holohepatica. 

 Family.— DOEIDID^ CETPTOBEANCHIAT^. 



Sub-family — AECHiDOEiDiD.a;. 

 Genus — Aechidohis. 

 Archidoris tuberculata (Cuv.). 

 Doris tuberculata, A. & H. 



Common on the rocky parts of the shores of the harbour. 



