TKliTIAKY VERTK15KATA OF THE FAYt'M. 
A s|)('ciin(Mi (text-ii<j;. 80), consisting' of the anterior portion of the upper and lower 
jaws in flieir natural ])osition with regard to one another, was also obtained from the 
s;ini(' horizon, and may be referred to this species with some confidence. There are 
1i\ c ])rema\illary teeth, the second * being very small and situated close in front of the 
third. The first, third, and fourth teeth are large; the fifth is small, and behind it 
there is a considerable diastema where the sides of the snout are hollowed out for the 
reception of the large fourth mandibular tooth. The alveoli, with the bases of four 
snbc(iual maxillary teeth, are preserved. As in the mandible, the borders of the 
alveoli are very })rominent, and the teeth seem to have been directed somewhat 
forwards. The premaxillary region is slightly expanded, and the nasal opening 
is large and lieart-shaped, with the point directed backwards. Unfortunately, none 
of the sutures can be seen, so that the relations of the nasals and premaxillae cannot 
be determined. The mandible, so far as preserved, agrees with that described above ; 
the large size of the fourth tooth is well shown. 
AVith the exception of the presence of a fifth premaxillary tooth, this s])ecimen 
agrees in all essentials with the corresponding parts of the skull and mandible of 
TomidoHia scltlegeli. 
C. 10006. jMandiljle. dyp<‘ specimen described in Geol. Mag. [4] vol. viii. 1901, ]»p. 443-444. 
Figured on PI. XXIIl. figs. 1,1 a, iB. The dimensions (in centimetres) of this 
specimen are : — 
Total length 
Length of sjmipliysis 
AVdJth at narrowest part of symphysis . 
„ posterior end of symphysis . 
Depth of ramus at posterior end of symphysis 
Greatest depth of ramus 
AVidth of articular surface fur quadrate 
10(1 
lO-u 
4-d 
11 
4-5 
\2 
4-2 
E. 3330. Plaster cast of the above specimen. Made in the British Mnsenni. 
E. 3201. Anterior portion of rostrum and mandible in their natural ])osition with regard to one 
another. Figured in text-fig. bb. The dimensions (in centimetres) of this specinnm 
are : — 
Length of the portion of the rostrum preserved .... 
„ ,, mandible preserved .... 
Width of premaxillary region 
„ rostrum at narrowest point 
Length of nasal opening 
Width of nasal opening 
3 1 - 5 
32- r) 
7-5 app. 
5 
I- 2 
4-2 
J’resented In/ tlie Kygjdlan Government, 1904. 
* In tlu! description of this s])ecimen given in Geol. Alag. [4J vol. viii. 1901, p. 444, the socket of this 
small additional tooth was o\eilookcd. 
