Rev. B. J. Clarke on Irish species of the genus Limax. 339 



L. " Lutescens fusco-tesseratus, capite granuloso, sulco marginali, 



carina dorsali succinea, valde notata lateribus pallidis." — Ferussac. 



Hab. Circular Road near Phoenix Park, co. Dublin, R. Ball, Esq. 



Specimens of this Limax have been obligingly forwarded to me 

 by Mr. Ball of Dublin, as taken by him on the Circular Road in 

 ditches. They agree well mth Ferussac's description and figm-es, 

 and also mth the diagnostic characters as given by Mr. Gray in 

 his edition of Turton^s ' Manual.^ " Keeled slug, yellowish tes- 

 sellated with brown ; head and tentacles black ; mantle granulous 

 and with a furrow near its margin, the ridge or keel of the back 

 very obvious and of an amber colom" ; the sides pale ; shell (PI. X. 

 %. e.) oval, often thickened, and very convex beneath.^^ 



This species is doubtless the L. carinatus of Leach. Mr. Alder 

 has separated it from the L. Soiverbii of Ferussac in his catalogue, 

 but he informs me he did so " merely because they were already 

 recorded species which he had not an opportunity of investiga- 

 ting." Mr. Alder has kindly favoured me with the examination 

 of a shell of the only keeled slug which has occurred to him as 

 found near Bristol, and which I consider to have belonged to a 

 young individual of L. Sowerbii. 



2. Limax Gagates, Drap. t. 9. figs. 1, 2. 



Limax Gagates, Ferus. Hist. Moll. pp. 75 & 76. t. 6. figs. 1, 2. 



Limax. "Niger nitidus, corpore striato subrugoso, dorso carinato." 



— Drap. 

 Var. fy. Ferussac. " Plumbeus vel griseo-niger." — PI. XIL figs, 16, 



17, 21. 

 Var. y. Clarke. Fuscus, lateribus pallidis.— PI. XIL figs. 18, 19, 20. 



Hub. Fields, gardens and meadows, Ireland. 



I feel great pleasui-e in being able to record the occurrence in 

 Ireland of this interesting mollusk, which has hitherto been un- 

 known as a British species. 



The Irish specimens are mostly referable to var. yS. Ferussac. 

 Animal of a fine deep blue-black or lead colour; sides pale gray- 

 ish ; tentacles dark gray ; sole of the foot whitish. 



The variety 7. is not unfrequently found with the above ; they 

 are yellowish brown clouded with gray, the keel often narrowly 

 margined with yellow, and the sides of the mantle yellowish. 



Within the present month (September) I have taken specimens 

 at Tourmakady Lodge, on the borders of Lough Mask, which 

 approach closer to Draparnaud^s description than any I have 

 hitherto observed ; they were of a deep black colour, the sides 

 paler, and exhibiting that greenish tinge of which the latter au- 

 thor makes mention. 



The mantle of this species is truncated behind, granulated or 



2 A2 



