110 



Proceedings of the Royal Irish Academy. 



Observations — This shell, described by Brown, is more elongate, 

 and comparatively less ventricose than M. Gihsoni. I only found two 

 specimens at Foynes Island. 



Loxonema strigillatum, de Koninck, 1881. PI. v., fig. 17. 



Loxonema strigillatum, de Kouinck, 1881. Ann. Mus. Roy. d'Hist. 

 Kat. Beige, torn, vi., p. 53. PI. vi., fig. 23. 



Specific characters — Shell small, elongate. Spire consisting of 9-12 

 whorls, which are only slightly convex. The suture is linear, and 

 marked by a compressed, almost linear, band. The surface is 

 ornamented by small, close, oblique ridges, which are better marked in 

 the younger portion of tlie shell, and become obsolete on the larger 

 whorls. 



Dimensions — Height, 8 mm. ; breadth, 3 mm. 



Locality — The marine band in the cli:ff about 1 mile north-west 

 of Kilkee, = Horizon of Millstone Grits. 



Observations — I have not met this shell before in the British 

 Isles. De Koninck's species was obtained at Vise. 



Ptychomphalus pisum, de Koninck, 1883. PI. v., fig. 19. 



Ptychomphalus pisim, de Koninck, 1883. Ann. Mus. Eoy. d'Hist. 

 'Nat. Beige, tom. viii., p. 41. PI. xxxi., figs. 57-61. 



Specific characters — Shell small ; conical spire, consisting of four 

 whorls, the last of which occupies the greater part of the shell ; 

 suture angular and shallow. Band of sinus comparatively broad ; 

 marginal in the last whorl, the portion of the whorl below it 

 being flattened, that above it convex. The shell is ornamented by 

 numerous raised, somewhat arched, transverse folds, which only pass 

 about one-third of the distance between the suture and the lower 

 margin of the band of the sinus. Elsewhere the surface is smooth. 



Dimensions — Height, 6 mm. ; breadth, 4 mm. 



Locality — The upper marine band, Puffing Hole, Kilkee ; and the 

 marine band 1 mile north-west of Kilkee, = Horizon of Millstone 

 Grit. 



Observations — This species has not been previously met with in 

 the British Isles. 



