P\L^0RHYNCHIDJ5. 
487 
Palaeorhynchus zitteli (Kramberger). 
1879. HemirhyncTius zitteli, D. G. Kramberger, Palaeontogr. vol. xxvi. 
p. 59, pi, XV. fig. 1. 
1886. Pal<eorhynchus zitteli, A. Wettstein, Fiscbfauna Tertiaer. Glar- 
nerschief. p. 72. 
1888. Palceorhynclius zitteli, K.. A.' von Zittel, Handb, Palseont. vol. iii. 
p. 301, fig. 312. 
Type. Imperfect fish ; Palaeontological Museum, Munich. 
An imperfectly known species closely resembling the type, but 
apparently a little deeper in proportion to its length. 
The type specimen is important as showing the laminar expan¬ 
sions of the vertebral arches and fin-supports. 
Form. ^ Log. L ^^r Galicia. 
Not represented in the Collection.• 
Fragmentary specimens of species not represented in the Collec¬ 
tion have also been described as follows :— 
Palaeorhynchus descJimanni, D. G. Kramberger, Pad Jugoslav. 
Akad. vol. Ixxii. (1885), p. 41, pi. i., pi. iii. fig. 3, and 
Soc. Hist. Nat. Croatiea, vol. i. (1886), p. 134.—Upper 
Oligocene ; Sagor, Croatia. [Portion of trunk.] 
Palceorhynclius giganteus, A. Wagner, Sitzungsb. k. bay. Akad. 
Wiss. 1860, p. 52.—Upper Oligocene; Siegsdorf, near 
Traunstein, Bavaria. [Imperfect fish; Palaeontological 
Museum, Munich.] 
Palceorhynclius cfr. glaronensis, F. Bassani, Atti P. Accad. Sci. 
Napoli [2] vol. iii. no. 6 (1889), p. 98, pi. xv. fig. 2.— 
Lower Miocene ; Chiavon, Yicentin. [Imperfect fish ; 
Piovene Collection, Lonedo.] 
Palceorhynchus rieclli, D. G. Kramberger, Djela Jugoslav. Akad. 
vol. xvi. (1895), p. 61, pi. xi. fig. 1.—Upper Oligocene; 
Trifail, Croatia. [Imperfect fish ; Zilli Museum.] 
Palceorhynchus is also known from the Oligocene of Buchsweiler 
and Froidefontaine in Alsace (F. Steindachner, Sitzungsb. k. Akad. 
Wiss., math.-naturw. Cl. vol. liv. pt. i. 1866, p. 150). 
The following fragmentary specimens from the London Clay of 
Sheppey closely resemble the corresponding parts of Palceorhynchus 
and cannot yet be generically distinguished:— 
P. 646-7. Two imperfect crania, one being 0-085 in length, labelled 
by Egerton as intended to be the type specimens of Ptycho- 
cephalus radiatus, Agassiz, recorded by name only in 
