ENCHODONTID-E- 
21 1 
Genus PAL2EOLYCUS, W. von der Harck. 
[Palseontogr. vol. xi. 1863, p. 31.] 
Trunk much elongated, both this and the head laterally com- 
pressed. Jaws and dentition as in Enchodus and Eurypholis. 
ertebrao at least 70 in number, nearly* half abdominal ; the centra 
longer than deep, constricted mcsially, and strengthened by at least 
otle lateral longitudinal ridge. All except the foremost rays of 
each fin finely divided distally, but none excessively elongated. No 
postclavicular plate. Pectoral fins rather large ; pelvic fins very 
small ; dorsal tin also very small and remote, with one spine and 
about 8 divided rays, opposed to part of the much-extended anal 
fi n i which has nearly 50 rays ; caudal fin small and deeply cleft, 
with stout basal rays. A series of median dorsal scutes immediately 
behind the occiput, [but no other dermal covering hitherto 
observed]. 
Palseolycus dreginensis, W. von der Marck. 
1863. Palaolyeus dreyinensis, W. von der Marck, Palaeontogr. vol. xi. 
P- 31, pi. iv. -fig-. 7. 
1885. PaUeolycus dreyinensis , W. von der Marck, loc. ext. vol. xxxi. 
P- 201. 
Type. Nearly complete fish ; Academy of Munster. 
The type species, attaining a length of about 0-4. Maximum 
depth of trunk contained about ten times, and length of head with 
opercular apparatus nearly eight times in the total length of the 
fish. Enlarged teeth longitudinally striated. Vertebrae 75 in 
lumber, about 32 referable to the abdominal region; the centra 
lightly pierced by persistent notochord. Pelvic fins arising slightly 
behind the middle point between the pectoral and anal fins ; dorsal 
fiu arising considerably' behind the anal, but opposed to part of the 
anterior half of the latter, comprising one spine and 8 divided ray's, 
Gie spine not much shorter than the first divided ray ; anal tin 
extending along nearly the wholo of the caudal region, with about 
46 well-spaced divided rays, apparently no anterior spinous rays, 
dorsal scutes perhaps about 6 in number, ornamented with fine 
radiating ridges. 
Form. ,j- Loc. Upper Cretaceous : neighbourhood of Sendenhorst, 
Westphalia. 
Not represented in the Collection. The above diagnoses are 
ased especially upon the second specimen in the Academy of 
funster described by W. von der Marck, loc. cit. 1885. 
p 2 
