104 MADEIRAN SPECIES OF LAURIA. 



36. Lauria recta (Lowe). PI. 13, figs. 6, 7, 8. 



The shell is long, cylindric, banded with chestnut brown 

 on a slightly paler, more olive ground, rather opaque. Sur- 

 face lusterless, very closely and minutely, weakly striate. 

 Whorls at first convex, then somewhat flattened. Angular 

 lamella thin, straight and oblique, connected by a high 

 callous ridge wth the lip-insertion, penetrating to the dorsal 

 side. Parietal lamella not penetrating quite so far. Colu- 

 mellar lamella rather strong, horizontal ; the weak trace of a 

 supracolumellar above it. The upper-palatal fold is not very 

 long. Basal fold smaller or quite small. Only the angular 

 lamella emerges to the peristome. The peristome is nar- 

 rowly expanded, a little reflected, brown, bearing a small 

 tooth above. 



Length 5, diam. 1.5 mm. ; 7y 2 whorls. 



Length 4.7, diam. 1.5 mm. ; 7i/> whorls. 



Madeira : around roots and among dry leaves of Semper- 

 vivicm tabula forme growing on rocks, particularly tow r ards 

 the coast ; sea cliffs below Sao Vicente and towards the Ribeira 

 da Janella, and along the whole north shore (Wollaston). 



Pupa recta Lowe, Ann. Mag. N. H. (2), ix, 1852, p. 276; 

 P. Z. S. 1854, p. 210.— Ppr., Monogr. iii, 543; vi, 309.— 

 Kuester, Conchyl. Cab. p. 168, pi. 20, f. 16, 17.— Wollaston 

 Test. Atlant. p. 224. 



It is a more elongate, duller shell than L. laevigata, with 

 the parietal lamella larger, and having a. conspicuous callus 

 between angular lamella and lip-insertion. 



Lauria recta macilenta (Lowe). PI. 13, fig. 9. 



Differs from L. recta " in being somewhat smaller, paler, 

 thinner and just appreciably more distinctly striate, in its 

 ultimate volution being a trifle shorter, and in its two palatal 

 plaits being greatly reduced in dimensions" (Wollaston). 

 The basal fold is small or very small, and deep within ; upper- 

 palatal fold from small to rather long in different examples. 

 Length 3.7, diam. 1.4 mm. ; 7!/2 w T horls. 



Madeira group : Deserta Grande, in crevices and hollows of 



