1064 CONTRIBUTIONS TO CONCHOLOGY, NO. I. 



easily peals off by exposure, the epidermis in matured specimens 

 is only present on the first three whorls, those beyond are nude, 

 and from age and exposure are whitish-brown ; the first thi'ee 

 whorls are slantingly uniformly transversely striated with lines 

 of growth, the striation showing through themembranoas epidermis; 

 the suture is impressed and is lined below on the lower two whorls 

 by a narrow but very distinct dark band, which grows finer as it 

 ascends and becomes lost about the middle of the third whorl; the 

 striation appears worn off the upper 3 or 4 whorls. 



Columella arched, adnate, with a disposition only to be twisted, 

 the lower end of the columella has a blunt tubercular plait which 

 is whitish soiled-looking, this streak of almost white extends 

 upwards as a narrow margin to the internal edge of the columella. 

 The aperture is oval with a rather Inroad expanded reflected lip all 

 round, the peristomal surface of which is dark brown, almost quite 

 black; the interior of the aperture is of pale cream colour; the 

 dark band which borders the suture shows through the substance 

 of the shell internally. Length 40 mm. ; breadth of last whorl 

 19 mm.; length of aperture 20 mm.; length of last whorl with 

 aperture 22 mm. ; from apex of shell to insertion of outer lip 

 14 mm. 



Hab.—^ew Ireland (B. Hinde, R.N.). 



EXPLANATION OF PLATES. 



Plate xx. 



Figs. 1-2. — Bulimina Larreyi, Brazier. 

 ,, 3, 4, 5. — Helix Kooringenais, Angas. 

 ,, 6. — Paraphaida Busbyi, Gray 



,, 7. — Rhytida ptychomphala, Pfr. 



,, S, 9. — Helicarion Sophue, Gask. 



Plate xxi. 



Figs. 1-2.— Cochlosty la Hindei, Cox. 

 ,, 3, 4. — Helix (Geotrochm) Gurgtistii, Cox 

 „ 5, 6. — H. yidennis, Brazier. 

 ,, 7. — Bulimua Macfarlandi, Bi'azier. 



,, 8, 9. — \ itrina snperha. Cox. 

 ,, 10, 11. — Helix (Geotrochus) Chapmani, Cox. 



