MIOCENE MOLLFSCA OF LAKE UEMI, 449 



whorls are present, the spire being absent. In the upper part 

 of the last whorl there are undoubted indications of the thick 

 tubercles which ornament that region in this species. 



S. Bonelli was originally described by Brongniart from, the 

 Miocene (Helvetian) beds of Turin (Mem. Terr. Sed. Calc.-Trapp. 

 Vicentin, 1823, pi. 6. fig. 6, sp. 74). 



Locality. In a grey marly rock from the beach of the island of 

 Koyun Daghi. 



Formation. Miocene (Helvetian). 



CoNUS sp. iudet. 



Two casts of this genus are present in the collection, but 

 they are much broken, water- worn examples, and therefore not 

 determinable. 



Locality. In a grey marly rock from the beach of the island 

 of Koyun Daghi. 



Formation. Miocene (Helvetian). 



Pyetjla cingflata (Bronn MS.), Homes. (Plate 30. figs. 8, 9.) 



Pyrula clathrata, Lamarck, Hist. Nat. Auim. sans Vert. 1822, vol. vii. 

 p. 141. 



Pyrula refAculata, Homes, Abhandl. k.-k. Geol. Eeichs. 1853, vol. iii. 

 pi. 28. figs. 1-3, p. 268, non Lamarck, 1822. 



Pyrula cingulata, Homes, Abhandl. k.-k. Geol. Reichs. 1856, vol. iii. 

 p. 676. 



Represented by a brown-coloured natural cast exhibiting the 

 shape and sculpture of this species. It has a long oval aperture, 

 an acute and outwardly-curved labrum, a moderately excavated 

 columella, and a very short, convex spire. The large body- 

 whorl is ornamented with broad and rather distant transverse 

 bands, these being crossed obscurely by finer lines. The ante- 

 rior canal is absent, most probably through fracture though the 

 end is now rounded from wear. The broad spiral bands seem to 

 separate this species from P. condita, Brongniart. 



Dimensions (^n vcaViixQ.eivQ^') . Length=50; diameter=34. 



This species, under the name of P. clathrata, Lamarck, was 

 first known from the Miocene of the Touraine district of Prance, 

 although mistaken by that author for a Paris Basin form. It 

 has been recorded also from Italy (Bronn) ; Poland (Eichwald) ; 

 Ehone Basin (Matheron) ; Portugal (Gr. B. Sowerby) ; Vienna 

 Basin (Homes), &c. 



Locality. Gruverchin Kala. (Collected by the Eev. C. Labaree.) 



Formation. Miocene (Burdigalian or Aquitanian). 



XIOTf. JOUEN. — ZOOLOG-Y, YOL. XXVII. 34 



