NOTIDANID.®. 
163 
28890, 30550, 32265, Six similar teeth, and one smaller ; Isle of 
Sheppey. Purchased. 
38866. One perfect and one imperfect tooth ; Isle of Sheppey. 
Bowerbank Coll. 
P. 440. Two similar teeth ; Isle of Sheppey. Purchased, 1882. 
28890 a, 28890 b, 30550 a, 38866 a. Small lower lateral teeth ; 
Isle of Sheppey. The first and third are described and 
figured by the present writer, loc. cit. p. 213, pi. vi. 
figs. 24, 25 ; the delicacy of the anterior serrations is a 
character of immaturity. Purchased. 
43133. Immature lower tooth and fragment, the first described and 
figured by the present writer, loc. cit. p. 216, ])1. vi. fig. 26 ; 
Ilighgate. Wetherdl Coll. 
43142. Small tooth, of typical form ; Kensal Green. Wetherdl Coll. 
To the front of the upper jaw either of this species or li.primi- 
genius may also probably be referred the following specimeus : 
43141. Three teeth, one being much abraded, of the form named 
Xiphodolamia by J. Leidy ; London Clay, Sheppej'. 
Notidanus primigenius, Agassiz. 
184.3. Notidanus primiyenius, L. Agassiz, Poiss. loss. vol. iii. p. 218, 
pi. x.wii. figs. 6-8, 1-3-17 (? figs. 4, 5). 
1843. Xotidanus recurvus, L. Agassiz, tom. cit, p. 220, pi. xxvii. 
figs. 9-12. 
1843. Sphyrua denliculata, L. Agassiz, tom. cit. p. 236, pi. xxvi. a. 
figs. 60, 61. 
1844. Xotidanus primiyenius, P. M. Padroni, Actes Soc. Linn. Bordeaux, 
vol. xiii. p. 281, pi. i. figs. 10, 11. 
(?) 1849. Xotidanus pnmiycjiiits, R. W. Gibbes, Journ. Acad. Is at. Sci. 
Philad. [2] vol. i. p. 195, pi. xxv. fig. 9.5. 
1852. Xotidanus primiyeniusjV. Gervais, Zool. etPal. Fran 9 .,Poiss.p. 10, 
pi. Ixxiv. figs. 9, 10. 
1852. Xotidanus primiycnius, F. A. Queustedt, llandb. Petrefakt. 
p. 107, pi. xiii. tig. 3. 
1858. Xotidanus primigenius, J. Probst, Wiirtt. Jahre.sh. vol. xiv. 
p. 124, svoodc. 
1863. Xotidanus primigenius, K. E. Schafhautl, Siid-Bayerns Letb. 
Geogn. p. 2.39. 
1879. Xotidanus primigenius, F. Bassani, Atti Soc. Veneto-Trent. Sci. 
Nat. vol. vi. p. 66. 
