114 roebuck: on CARNARVONSHIRE MOLLUSCA. 



Arion ater van rufa. — Brown specimens, more or less in- 

 tensely coloured, occurred to me at Llangelynen and other 

 places. 



Arion hortensis. — A few specimens noted; Beddgelert, 

 Dinas railway station, and Conway Castle. 



Limax agrestis. — Abundant wherever I collected. Dinas 

 station, Trefriw, Gwydir gate, Conway Castle and town, &c. 



Limax maximus var. cellaria d'Arg. —One seen at Trefriw 

 and one in Conway Castle. 



Limax arborum. — A young one seen at Trefriw, and in Con- 

 way Castle I found a large slug which somewhat puzzled 

 me, but which I am inclined to refer to this species from 

 the pattern of its markings. 



Zonites cellarius. — Common, occurringtomeat Dinas station, 

 Trefriw, Gwydir gate, and Conway Castle. 



Z. glaber,— Common. Trefriw, Gwydir gate, Dinas station, 

 and Conway town. 



Z. alliarius. — Not so plentiful as the preceding. I collected 

 a few in Conway Castle and at Dinas station. 



Z. alliarius var. viridula. — Amongst my specimens of this 

 species collected in Conway Castle is a white example. 



Z. nitidulus. — A few specimens at Llangelynen, Dinas station, 

 Trefriw, and Gwydir gate. 



Z. crystallinus. — Conway Castle. 



Helix aspersa. — Abundant in Conway Castle and town, at 

 Dinas station, and at Llangelynen. 



H. nemoralis var. libellula. — Conway town (band formula 

 12345); Llangelynen (00300). 



H. nemoralis var. rubella. — At Conway town (00300); 

 Llangelynen (00300) ; and Dinas station (00300, the band 

 very faint, hardly darker than the ground tint). 



H. nemoralis var. castanea. — Conway town (00000). 



H. arbustorum. — A few specimens among nettles at Gwydir 

 turnpike gate near Llanrwst. 



H. hispida. — One at Trefriw, and common at Conway Castle. 



J.C, iv;, Oct., 1883, 



