BAJiDa;. 
89 
Baja rugosa, J. Probst, tom. cit. p. 76, pi. i. figs. 5-9 (tooth). — 
Molasse; Baltringen. 
Baja spiralis, Munster, Beitr. Petrefakt. vii. p. 33, pi. ii. fig. 24. 
— Sandstone ; Jacobsberg, Minden. 
Baja strangulata, J. Probst, tom, cit. p. 77, pi. i. figs. 10-13 (tooth). 
— Molasse; Baltringen. 
Baja suhoxyrhynchrts, 11. Lawley, Nuovi Studi, etc. 1876, p. 43, 
pi. ii. figs. 2, 5 (teeth). — Pliocene; Orciano, Volterra 
(Tuscany). 
Undetermined species of Baja are recorded by C. Hasse, op. cit., 
upon the evidence of detached vertebrse from the Upper Chalk of 
Maastricht (p. 167, pi. xxii. figs. 5-7), the Miocene Molasse of 
Baltringen (p. 167, pi. xxii. figs. 8, 9), and the Pliocene Crag of 
Antwerp (p. 170, pi. xxii. figs. 16-20). 
Teeth of the existing Baja hatis have been determined from the 
■Weybonrn Crag of East Kunton, Norfolk, by E. T. Newton, Vert. 
Forest-bed Series (Mem. Geol. Suit. 1882), p. 131, pi. xix. fig. 9. 
Genus DYNATOBATIS, Larrazet. 
[BuU. Soc. Geol. France [3], vol. xiv. 1886, p. 258.] 
Dermal tubercles with enormous base and very small spine. 
Three species are determined by Larrazet, two from the Tertiary' 
of the Kio Parana, South America, the first of unknown formation 
and locality : — 
Dynatohatis gaudryi, Larr. loc. cit. p. 265, pi. xv. fig. 2. 
Dynatobatis paranensis, Larr. loc. cit. p. 263, pL xiv. figs. 1-4. 
Dynatohatis rectangular is, Larr. loc. cit. p. 264, pi. xv. fig. 1. 
Genus ACANTHOBATIS, Larrazet. 
[BuU. Soc. Geol. France [3], vol. xiv. 1886, p. 258.] 
High dermal tubercles, with smaU base, several fused together. 
The foUowing species are recognized : — 
Acanihohatis eximia, Larrazet, loc. cit. p. 265, pi. xv. fig. 3, pi. xvi. 
fig. 1. — Molasse ; Gard, France. 
Acanthohatis tuberculosus, K. A. von Zittel, Sitzungsb. math.-phys. 
Cl. k. bay. Akad. Wise. vol. xvi. 1886, p. 264 ; Handb. 
Palseont. vol. iii. 1887, p. 105, fig. 121 : Acipenser luber- 
culosus, J. Probst, IVurtt. Jahresh. vol. 38 (1882), p. 127, 
pi. ii. figs. 6-9, 15. — Molasse; Baltringen, Wiirtemberg. 
