110 UPPER CRETACEOUS TELEOSTS 
median longitudinal ridges on their dorsal surfaces. Each scute is ornamented 
dorsally with concentric ovals of small raised tubercles. The scutes overlap slightly 
and extend almost back to the origin of the dorsal fin. These scutes definitely give 
the appearance of having had a sensory canal associated with them, particularly as 
there is evidence of a median dorsal sensory canal which passed on to the supra- 
occipital and may possibly have passed through these three dorsal scutes. 
The scales marking the passage of the lateral line canal begin just posterior to the 
dorsal supracleithral region and continue back along the length of the body to 
terminate on the caudal peduncle. There are approximately the same number of 
scales in the row as there are vertebrae, i.e. 40. The scales are irregularly triangular, 
the base of each triangle being directed posteriorly. Each scale has a single deep 
indentation posteriorly, and here it overlaps the anterior region of the next scale in 
the row. On the anterior region of each scale there is a raised median ridge which is 
continued as a projection posteriorly above the anterior region of the hind indenta- 
tion. The outer surface of each scale is ornamented with small scattered tubercles 
except in the anterior region which is overlapped by the preceeding scale. The 
individual scales were perforated by the sensory canal which also ran within the 
posterior indentation of each scale. The projecting spine on each scale becomes 
more pronounced near the posterior end of the body, especially on the caudal 
peduncle where the terminal two or three scales bear prominent laterally projecting 
flanges. 
Eurypholis pulchellus (Woodward) 
(Text-figs. 49-54) 
1888a Enchodus lewesiensis (Mantell) ; Woodward : 315, pl. 1, fig. 6 (evrore). 
1901 Enchodus pulchellus Woodward : 193, pl. 11, figs. 2, 3. 
1903 Enchodus pulchellus Woodward ; Woodward : 62, pl. 14, figs. 9-11, text-fig. 14. 
DraGnosis (emended). Eurypholis in which the maxilla does not appear to be 
toothed. A single major tooth row on the dentary with no indications of a marginal 
row. Mandible long and narrow with its greatest depth being about one-fifth of the 
total length. Preoperculum deep and narrow and forwardly inclined. Operculum 
slightly deeper than broad. 
HoLotyPe. Specimen number P.1703 in the B.M.N.H., an isolated head exposed 
from the left side, from the Turonian of south-east England. 
MATERIAL. The holotype and one other specimen from the B.M.N.H., number 
P.10984, also from the Turonian of south-east England. 
REMARKS. This species was originally placed by Woodward in the genus 
Enchodus. At first (1888a : 315, pl. 1, fig. 6) Woodward included it in the species 
Enchodus lewesiensis, later however he erected a new species for its reception, E. 
pulchellus Woodward (1901 : 193). The holotype figured by Woodward (1901, 
pl. 11, fig. 2 ; and 1903, pl. 14, fig. 9) is the remains of a head on a block of chalk 
with the left side exposed. The specimen was mechanically prepared from the right 
side, thus exposing much of the neurocranium and showing it to be unlike the neuro- 
