from Porto Santo. 57 



turis distinctissimis ; apertura orbiculari, peristomate contiimo, 

 externo subreflexo, interno incrassato. Axis f , diam. | unc. Tab* 

 Hi. f. 3. 



Shell subglobose, spire rather prominent ; volutions from four to 

 five, ventricose, with numerous slender longitudinal strife ; suture 

 very distinct ; aperture orbicular, peristome continuous, the outer 

 part turned a little back, the inner thickened. Pale testaceous 

 with flakes of white. 



4. Helix nitidiuscula ; testa subdiscoidea, exilissime longitudi- 

 naliter stiiata, spira prominula, anfractibus senis, ventricosis, ni- 

 tidiusculis ; suturis distinctis ; apertura sub-orbiculari, peristo- 

 mate continuo, simplice ; umbilico mediocri. Axis -|, diam. | 

 unc. Tab. iii, f. 4. 



Shell ffattish with a somewhat prominent spire consisting of six 

 volutions, which are ventricose, rather shining, and very finely 

 striated longitudinally ; suture strongly marked; aperture nearly 

 orbicular, with a simple periston e ; umbilicus not very large. 

 Our specimen is white with 3 brown bands on the upper half of 

 the last volution. 



5. Helix Purto-fanctance ; testa fere discoidea, unibilicata, lon- 

 gitudinaliter striata; spira subprominuli ; anfractibus quinis, 

 ventricosis ; suturis distinctis, apertura suborbiculari ; peristomate 

 continuo, reflexo, prominente. Axis |, diam. 1| unc. Tab. iii. 

 f. 5. 



Shell almost discoid, umbiiicated ; spire rather prominent ; vo- 

 lutions five, Tentricose, longitudinally striated ; suture distinct ; 

 aperture rather elliptical ; peristome continuous, reflected, promi- 

 nent. Two varieties in colour are figured, one nearly white, with 

 very light brown bands, and the other tawny with three darker 

 bands. The animal is rather short and of a pale reddish grey 

 colour. 



6. Helix 7ec///brff/M ; testa spiri brevi, rotundata ; anfractibus 

 subseptcnis, supri leviter striatis, medio carinatis, carina deflexi; 

 subtus umbilicatil subdepressa, anfractu ultimo rotundato, granu- 

 late ; apertura elongate, subquadratil, labio subtus expanso, re- 

 flexo. Axis Jj, diam. {| unc. Tab. iii, f. C. 



This shell is naturally divided into two parts by the carina of 



