A.SPIDORH YXCHID.E. 
421 
P. 972 a. Part of the pectoral fins and abdominal sqnamation of a 
similar specimen, labelled “ Aspidorhynchus acutirostris, 
Agass.,” by Agassiz ; Solenhofen. Egerton Coll . 
P. 972 b. Scattered remains of the bead of another large fish, dis¬ 
playing among other elements the ceratobyal, epihyal, and 
expanded hyomandibular ; Solenbofen. Egerton Coll. 
36013-14. Similar remains of a large bead with the pectoral fin, 
in counterpart; Solenbofen. The cranium is shown from 
above, and the branched character of the pectoral fin-rays 
is well displayed. Purchased , 1861. 
P. 971. Head and anterior portion of the abdominal region exhi¬ 
biting chiefly an ornament of rugae, and labelled “ Aspiclo- 
rhynchus speciosus , Agass.,” by Agassiz ; Kelheim. 
Egerton Coll. 
37790. Contorted fish 075 in length, with complete rostrum, several 
well-preserved vertebral rings and portions of squamation, 
and perfect caudal fin; Solenbofen. The rostrum is conspi¬ 
cuously marked with longitudinal rugae. Haberlein Coll. 
37802. Head of an equally large specimen, in counterpart, with the 
pectoral fin ; Solenbofen. Haberlein Coll. 
P. 2055. Fragmentary remains of large trunk with richly orna¬ 
mented scales, labelled “ Aspidorhynchus acutirostris , 
Agass.,” by Agassiz ; Solenbofen. Egerton Coll. 
49145. Plaster cast of nearly complete fish 0*67 in length, the 
specimen figured by Agassiz, tom. cit. pi. xlvi. fig. 2 ; 
Solenbofen. Purchased , 1878. 
P. 2056. Feeble impression of the bead and imperfect trunk of a 
similar fish, showing vertebral rings ; Kelheim. 
Egerton Coll. 
P. 2057. Mandible, scattered bead-bones, and part of the trunk of 
a similar fish : Solenbofen. Egerton Coll. 
22657. Specimen 0'58 in length, with almost smooth scales and 
opercular apparatus; Solenbofen. The anal fin is espe¬ 
cially well shown, with minute fulcra. Purchased , 1848. 
37789. More imperfect specimen 0*55 in length, displaying the 
forked caudal fin; Solenhofen. In both this and the 
previous fish the dorsal fin is distinctly smaller than the 
