ee aN OX, 
Betne a List or SPECIES NOT INCLUDED IN THE FOREGOING PAGES, 
BUT RECORDED IN THE CATALOGUES OF THE EARLIER EXPLORERS 
OF OUR FIRTH. 
In deference to the usual custom, the following List is here 
given. No comment has been added, as I prefer leaving the 
reader to weigh for himself the value of the authorities given. 
For convenience, the List has been divided into three groups, 
viz.:—(a), Such as have been recorded on authority of a trust- 
worthy nature; (b), such as depend on doubtful or insufficient 
authority ; (c), exotic, fossil, fragmentary, and unrecognisable 
species. 
In all cases synonyms have been suppressed. 
(a). 
Pecten furtivus (Teste), Worman, Loch Fyne. 
Scrobicularia intermedia (nitida), Smith and Norman, Loch Fyne. 
Sphenia (Mya) Binghami, Smith, Landsborough, and M‘Andrew. 
Propilidium ancyloides, Smith, Martin, Forbes, Landsborough, and 
W. Thomson, dead shells, Lamlash Bay. 
Rissoa tenuis (albella), A/der, Rothesay. 
Odostomia excavata, Smith, Landsborough, and Norman, dead 
shells, Lamlash. 
(6). 
Pinna pectinata (rudis), Smith, Landsborough and Martin, Lamlash 
and Skelmorlie. 
Mytilus phaseolinus, Smzth and Landsborough, Lamlash. 
Crenella decussata, Smith and Landsborough, Lamlash, 
Area tetragona, Smith. 
M 
