NO. 8 INTERRELATIONSHIPS OF THE CETACEA WINGE JJ 



Dal Piaz : Sopra alcuni resti di Squalodon dell' arenaria miocenica 

 di Belluno; Palaeontographia Italica, vol. 6, 1900, pp. 303-314, 

 pis. 26-29. 

 Abel : Les Dauphins Longirostres du Bolderien des Environs 

 d'Anvers; Mem. Mus. Roy. d'Hist. Nat. de Belgique, vol. i, 

 1901, pp. 9-10. On the dentition in Squalodon. 

 Dal Piaz : Neosqualodon, nuovo genere della famiglia degli Sqiialo- 

 dontidi ; Abhandl. der Schweizerischen palaontologischen Gesell- 

 schaft, vol. 31, 1904, pp. 1-21, pi. 

 Abel : Les Odontocetes du Bolderien d'Anvers ; Mem. Mus. Roy. 

 d'Hist. Nat. de Belgique, vol. 3, 1905, pp. 25-38. On the 

 dentition. 

 True: Remarks on the type of the fossil Cetacean Agorophius 

 pygmseus (Miiller) ; Smithsonian Inst. Special Publ., No. 1694, 

 1907, pp. 1-8, pi. 

 True : Descr. of a mandible and vertebrae of Prosqualodon, etc. ; 

 Smithsonian Misc. Coll., vol. 52, pt. 4, 1910, pp. 447-456, pi. 43. 

 Hall : On the systematic position of the species of Squalodon and 

 Zeuglodon described from Australia and New Zealand ; Proc. 

 Roy. Soc. Victoria, n. s., vol. 23, pt. 2, 1911, pp. 257-265, pi. 36. 

 Parasqualodon, M etasqualodon. 

 Abel : Cetaceenstudien, HI. Mitteilung, Rekonstruktion des Schadels 

 von Prosqualodon australe {sic) Lyd. aus dem Miozan Pata- 

 goniens; Sitzungsber. k. Akad. Wissensch. Wien, mathem.- 

 naturw. KL, vol. 121, pt. i, 1912, pp. 57-75, pis. 1-3. The 

 account contains various guesses ; Lydekker's figures of the type 

 cannot be dispensed with in forming an opinion about the genus. 

 References to several other papers will be found in H. Winge, 

 Vidensk. Medd. Naturhist Foren., 1909, pp. 31-35. 

 Microsqualodon xA.bel is said to be identical with Neosqualodon Dal 

 Piaz. Abel (Odontocetes du Bolderien, 1905, pp. 35-36) established 

 the genus on the basis of Tertiary remains from Acqui which Brandt 

 had called Squalodon gastaldii. In a letter to Abel, however, which 

 Abel printed, Dal Piaz explains tliat these specimens, which he had 

 had the opportunity to see, must be referred to the earlier described 

 Neosqualodon. 



Parasqualodon and M etasqualodon are proposed by Hall (1911, 

 /. c.) to include Tertiary Australian species that previously were 

 referred to Squalodon: S. zmlkinsoni M'Coy and 6^. harzvoodii 

 Sanger. The genera are supposed to be nearly related to Prosqualo- 

 don, but they are known from loose teeth only and their status is still 

 uncertain. 



