NATUKAL HISTORY NOTES FROM TARBERT. 377 



There is another pretty species (P. int err upturn, 

 Goodsir) which is much more common. Its colour 

 is a uniform reddish brown, and its movements are 

 lively. 



Laophonte horrida, Norman. — Dr. Brady speaks of 

 this species as "remarkable and strongly character- 

 ised," and states that it " has been noticed in Britain 

 as yet only on the Atlantic coasts of Scotland and 

 North of Ireland." Certainly it has a very "touch- 

 me-gin-ye-daur " look about it, which Mr. Norman 

 sems to have recognised when he gave it its name. 

 I have seen a number of specimens, but only in 

 material from East Loch Tarbert dredged in about 

 5 or 6 fathoms. Dr. Brady further says : " My 

 collection contains several si)ecimens which were 

 dredged off the Island of Cumbrae amongst vegetable 

 and other debris, and one from a depth of fifteen 

 fathoms off Portincross (Ayrshire). Mr. Norman 

 found a single example in material from Oban, and 

 lastly I have noticed it in material washed from 

 the roots and fronds of Laviinarice in Mulroy 

 Lough, Donegal. Female sj^ecimens only have been 

 observed." * I have got both male and female forms. 



MOLLUSCA. 



The following three molluscs may be worthy of 

 notice : 



Lamellaria perspicua, Linn. — This species is of 

 frequent occurrence on the under side of loose 

 stones on the north side of East Loch Tarbert, at 

 and a little above low-water mark. It is one of 

 those molluscs of which one hardly knows what 

 to make when seen for the first time. It certainly 

 does not at first seem to be allied to Velutina, and 

 yet it belongs to the same family. In referring- 

 to LaineUaria, Dr. Jeffreys says : " This resembles a 

 Doris (one of the sea-slugs) in appearance ; and no 

 one who is unacquainted with the varied structure 



* Brady, Br'disJi Copepoda, ii. 75. 



