392 
ACTINOPTERYGII. 
bones finely granulated. Pelvic fins arising much nearer to the 
pectorals than to the anal fin. Dorsal fin with about 24 rays ; anal 
with nearly 50 rays. Scales smooth. 
Form. 4' Log. Lower Kimmeridgian (Lithographic Stone): 
Bavaria. 
49144. Plaster cast of type specimen ; Solenhofen. 
Purchased , 1878. 
P. 6942. A nearly complete fish about 0*75 in total length; Eich- 
stadt. The head. is obscure, but some of the large 
mandibular teeth are shown and parts of the external 
bones are distinctly ornamented with very fine tubercles. 
The axial skeleton of the trunk is well preserved and 
there are no traces of ossifications in the notochordal 
sheath. There are at least 120 segments. In the abdo¬ 
minal region the two halves of the long neural arches are 
separate both from each other and from the sigmoidally- 
bent neural spines. The latter are shorter than their 
supporting arches, shortest beneath the anterior half of 
the dorsal fin, thickest and most widely spaced anteriorly 
immediately behind the head. The ribs are remarkably 
slender and short, not half encircling the abdominal 
cavity. The neural and haemal spines are fused with 
their supporting arches in the caudal region, much inclined 
backwards and approximately symmetrical, except at the 
base of the caudal fin where the haemals are much en¬ 
larged. The left pectoral fin and both the pelvic fins are 
preserved, both of relatively small size, but the latter 
especially reduced. The pelvic pair arises at a point Oil 
distant from the origin of the pectorals and 0T45 from 
that of the anal. Only a few supports of the dorsal fin 
are shown, these being well in advance of the anal, which 
is much extended but not sufficiently well-preserved for 
the counting of the rays. The caudal fin is complete, 
exhibiting the very fine subdivision of the rays at its 
hiuder border and a fringe of small fulcra on its anterior 
margins. The scales are smooth, but the majority 
probablj’ exhibit only their inner face. 
By exchange , 1893. 
P. 7181. An equally large fish similarly displaying the axial 
skeleton of the trunk and the very fine tubercular orna- 
ment of some of the external bones ; Eichstiidt. The 
pelvic fins are displaced but well preserved, and the remains 
of the dorsal fin exhibit a fringe of small fulcra on its 
