2 g 2 [Pi-oc. B.N.F.C, 



excavated in the rocks. This member of the Mediterranean 

 fauna is found along the west coast of Ireland from County 

 Donegal to County Cork, but it occurs nowhere else in the 

 British Islands. The rocks and many of the shells were encrusted 

 with the red coralline, Lithothamnion polymorphu?ti % and between 

 the holes of the echini were irregular masses of an allied form, 

 L. vesicalatum, and examples of the moss-like Corallinia officinalis. 

 Many shells of the limpets which were lying about were being 

 destroyed by the perforating green algae, Gomontia. Chitons, 

 swimming crabs, nemertine and polychsete worms, and masses of 

 compound tunicates were also observed. 



Mollusca were well represented, the old woods at Glenade 

 being full of Helix lamellata and Pupa anglica, also specimens of 

 the alba-lateralis form of Arion ater. Under stones at Glenade 

 Vertigo lillieborgi was common, this being the 4th recorded 

 Britannic locality. The rock snail, Helix rupestris, was found 

 most abundantly even at an altitude of over 1,400 feet. In Lough 

 Melvin Planorbis glaber was found. 



All the common species of Woodlice were observed, but in 

 this group the best captures were Cylisticus convexus, taken at 

 Abbey Assaroe, and Haplopthalmus mengii, from an ant's nest in 

 Glenade, while at the same place Trichoniscus roseus was found 

 plentifully under stones in a semi dried-up mountain rivulet. 



The ornithologist of the party reports that sixty-eight different 

 species of birds were observed. As foreshadowed in the pro- 

 gramme, the Mullaghmore excursion was by far the best day, the 

 very large number of sixty-two species of birds being noted — the 

 largest number ever observed in a single day of the July 

 excursions. The rarest bird seen was the Tree-Sparrow, Passer 

 montanus, between Bundoran and Ballyshannon, four feeding 

 together. It is satisfactory to know that this species, first found 

 breeding in Co. Donegal in 1907, is still established there. The 

 Grasshopper-Warbler is a new record for Co. Sligo, while the 

 Corn-Bunting and Tufted Duck were apparently breeding in Co. 



