Fossil Fauna, Table Cape Beds, Tasmania. 95 



rently based upon Mr. Johnston's description, differing from 

 them in that it occupies an intermediate position between the 

 two with regard to proportions, in having a greater number of 

 ribs on the body-whorl, which also increase more rapidly in 

 number on the posterior whorls, and in the absence or indistinct- 

 ness of spiral sculpture. The last mentioned difference does not 

 exist, unless it be in very much rolled and beach-worn specimens. 

 It must have been a very ill-preserved example that came under 

 Mr. Johnston's notice to have enabled him to make such a state- 

 ment, for the four specimens which 1 have had the opportunity 

 of examining show strong spiral threads, which number about 

 twenty-four on the posterior whoi'ls, and usually a much finer 

 thread is developed between the strong spiral threads. 



32. Voluta ancilloides, Tate. 

 Id., Tate, Gast. II., 1889, p. 126, pi. iii., fig. 7. 



.33. Voluta maccoyii, T. Woods. 



V. maccoyii, T. Woods, P.R.S.Tas., 1876, p. 95. 



V. lirata, Johnston, P.R.S.Tas., 1879, p. 37, and Geo. Tas., 

 1888, pi. XXX., fig. 10 (F. r///^^r//, Johnston, non 1880) (non 

 V. lirata, Tate, Gast. II., 1889, p. 130, pi. ii., fig. 4). 



V. agnewi, Johnston, Geo. Tas., 1888, pi. xxx., fig. 9 (non V. 

 agnewi, Johnston, 1880). 



V. juaccoyii, Tate, Gast. IT., 1889, p. 126, pi. ii., fig. 2. 



V. polita, Tate, op. cit., p. 127, pi. ii., tig. 7. 



Observations, — Considerable confusion has existed with regard 

 to this species, which may now, I think, be cleared up in the 

 following manner. The Rev. J. E. T. Woods in 1876 described 

 Voluta maccoyii from the Table Cape beds, and the species 

 described by him is represented in the present collection by 

 twelve examples. In his description he mentions that the whorls 

 have " no other marks than the lines of growth." In some 

 specimens, however, which cannot be separated from this species, 

 some of the lines of growth on the posterior whorls are so much 

 stronger than others that the shells are distinctly Urate posteriorly, 

 at the same time every gradation may be traced between the 

 smooth and lirate forms. Mr. R. M.Johnston in 1879 described 



