482 
ACTING PTF.R YOU. 
Hemiihyrsites licala?, H. E. Sauvage, he. cit. 1873, p. 139. 
Acanthonotos licala, H. E. Sauvage, loc. cit. 1870, p. 10. 
— Ibid. [Fragments.] 
Megalolepis baschcaensis , D. G. Kramberger, Paheontogr. vol. xxvi. 
(1879), p. 61, pi. xvi. fig. 3. — Lower Oligocene; Baschka, 
Galicia. [Type species. Imperfect fish ; Palaeontological 
Museum, Munich.] 
Megalolepis latus, D. G. Kramberger, ibid. p. 62, pi. xvi. fig. 2. 
— Ibid. [Imperfect fish ; Palaeontological Museum, 
Munich.] 
lrichiuricbthys incertus, H. E. Sauvage, Ann. Sci. Geol. vol. iv. 
(1873), art. no. 1, p. 130, fig. 28. — Upper Miocene; 
Licata, Sicily. [Imperfect caudal region.] 
Xiphopterus falcatus, I. Agassiz, Neues Jahrb. 1835, p. 295, and 
Poiss. Foss. vol. v. pt. i. (1844), p. 77. Esox falcatus, 
G. S. V olta, Ittiolit. Veronese (1796), p. ccxxxvii. pi. lvii* 
— Upper Eocene; Monte llolca. [Fragmentary fish; 
Paris Museum of Natural History.] 
Unsatisfactory fragments of jaws and other bones have also been 
referred to supposed extinct species of the existing genus Pelamys 
as follows : — 
Pelamys adunca, It. Lawley, Nuovi Studi Pesci, &c.. Colli ne 
Toscane (1876), p. 64, pi. v. fig. 6.— Lower Pliocene ; 
Orciano, Tuscany. 
Pelamys robusta, P. J. Van Beneden, Bull. Acad. Hoy. Bclg. [2] 
vol. xxxi. (1871), p. 512.— Middle Oligocene (Rupelian) ; 
Basele, Belgium. 
An otolith, not represented in the Collection, has been described 
as follows i — 
Otolithvs {Scombridarvm) thynnoides ,E. Koken, Zeitscbr. deutsch. 
geol. Ges. vol. xliii. (1891), p. 130, pi. x. fig. 10 .— Middle 
Oligocene ; Waldbockelheim. 
Family PALiEORHYNCHIDiE. 
1 runk much elongated and laterally compressed. Snout much 
produced; mandibular suspensorium inclined sharply forwards, but 
gape of mouth wide ; teeth minute or absent. Vertebra; 50 to 66 
in number ; ribs completely encircling the abdominal cavity ; 
