194 Proceedings of the Eoyal Physical Society. 



In the summer of 1877 upwards of twenty members of 

 the Birmingham Natural History and Microscopical Society 

 visited Arran and dredged for a week, chiefly in Lamlash 

 Bay, where they found two species {Thy one papillosa and 

 Elysia midis) not previously recorded. A large party of 

 members of the same society returned to Lamlash in the 

 following summer (1878) and took three species of Nudi- 

 branchs, two at least of which were new to the locality. 



These, as far as I am aware, are the only published lists of 

 the fauna of Lamlash Bay. Trom the fact that each suc- 

 cessive investigator has been able to add to the recorded 

 fauna, it may reasonably be inferred that further work will 

 not be fruitless, and that, although this part of the coast has 

 received more than its just share of attention from marine 

 zoologists, much dredging and careful investigation will still 

 be required before we can have anything like an accurate 

 knowledge of the inhabitants of even this much searched 

 locality. 



I ought to mention that very complete lists of the Fora- 

 minifera, Actinozoa, Ostracoda, and Mollusca of the Clyde 

 district are to be found in the " Fauna and Flora of the West 

 of Scotland," published by the British Association. Doubt- 

 less most of the species would also be found at Lamlash if 

 those groups were as thoroughly worked out there as they 

 have been at C umbrae. 



My chief dredging ground was at the north and south 

 entrances to the bay and along the Lamlash side of Holy 

 Island. A few hauls were taken in most of the other parts 

 of the bay, but the localities above specified were found to be 

 the most productive. 



At each place where the dredge was let down the depth 

 was carefully ascertained, and, except when the haul was very 

 poor, a list was kept of the animals brought up in the net. 

 There are forty-three such lists which I have arranged in 

 twelve stations or localities referred to by their numbers in 

 the following record. 



Among the animals collected between tide marks the 

 locality of those species which rarely occurred is given. 

 The others are marked "littoral." Those taken only at 



