NO. 8 INTERRELATIONSHIPS OF THE CETACEA WINGE 83 



Van Beneden: Memoire sur les Orques observes dans les mers 

 d'Europe; Mem. Acad. Roy. Belgique, vol. 43, 1879, PP- i-33' 

 pis. 1-4, vv^ith figures of exterior, skeleton, skulls. Orca. 



Flower : On the characters and divisions of the family Delphinidce ; 

 Proceed. Zool. Soc. London, 1883, pp. 466-513, vi^ith figures in 

 the text representing the posterior part of the bony palate in 

 several of the genera. One of the most important papers in 

 elucidating the relationship among the recent Delphinids. 



Liitken : Kritiske Studier over nogle Tandhvaler af Slsegterne Tur- 

 siops, Orca og Lagenorhynchus ; Kgl. Dansk Vidensk. Selsk. 

 Skrifter, 6te R., naturv. mathem. Afd., vols. 4, 6, 1887, pp. 337- 

 397, pis. I, 2, also text figures: exterior, skull, other skeletal 

 parts. 



Liitken : Spolia Atlantica, Bidrag til Kundskab om de tre pelagiske 

 Tandhval-Slasgter Steno, Delphinus og Prodelphinus ; Kgl. 

 Danske Vidensk. Selsk. Skrifter, 6te R., naturv. mathem. Afd., 

 vol. 5, I, 1889, pp. 1-61, plate v^ith a figure of the exterior and 

 skeleton of Steno; also figures in the text : exterior, skulls, other 

 skeletal parts. 



True: A Review of the Family Delphinidse ; Bull. U. S. Nat. Mus., 

 No. 36, 1889, pp. 1-191, pis. 1-47, with figures of exterior and 

 skulls. In the conception of genera and their mutual relation- 

 ships agrees closely with Flower's conclusions. 



Lydekker : Cetacean skulls from Patagonia ; Anales del Museo de 

 La Plata, Paleontologia Argentina, vol. 2, 1893, pp. 10-12, pi. 5. 

 Argyrocetus. 



Guldberg: On the development and structure of the Whale, pt. i, on 

 the development of the Dolphin ; Bergens Museums Skrifter, 

 vol. 5, 1894, pp. 1-70. pis. 1-7. Lagenorhynchus, Phocccna, Orca. 



Longhi : Sopra i resti di un cranio di Champsodelphis f ossile scoperto 

 nella molassa miocenica del Bellunese ; Atti della Societa Veneto- 

 Trentina di Scienze Naturali, ser. 2, vol. 3, fasc. 2, 1898, pp. 1-60 

 in the separate, pis. 1-3. 



Abel : L-ntersuchungen iiber die f ossilen Platanistiden des Wiener 

 Beckens ; Denkschr. d. k. Akad. Wissensch. Wien, math.-naturw. 

 CI., vol. 68, 1899, pp. 839-874, pis. 1-4, with figures of skulls. 

 Cyrtodclphis and Acrodelphis—Schisodelphis and Champso- 

 delphis, 



Abel: Les Dauphins Longirostres du Bolderien (Miocene superieur) 

 des Environs d'Anvers ; Mem. Mus. Roy. d'Hist. Nat. de 



