42 Mamm. . n. mammalia. 
VIII. GETAOEA. 
Notes on Antarctic Cetaceans, Bruce, supra, p. 5; prostate, Beauregard 
& Boulart, supra, p. 4 ; whale-fishery, Southwell, supra , p. 20. 
An account of the French Miocene representations of the order is 
given by Paquier, supra, p. 36, with some remarks on the phylogeny 
of Cetaceans in general, and the antiquity of the Platanistidcc. 
1. BAL.£NIDiE. 
t Getotherium moreni , n. sp., Lydekker, An. Mus. La Plata, Pal. Arg. ii, 
art. 2, p. 2, Tertiary, Patagonia (1893). 
Balceonoptera musculus , plexus of eye ; Beauregard, suprh, p. 4. 
. 2. fPHYSODONTJDJ}. 
'+ Physodon patagonicus , n. sp., Lydekker, An. Mus. La Plata, Pal. Arg. 
ii, art. 2, p. 4, Tertiary, Patagonia (1803). It is shown that the genus 
differs from the Physeteridce in the presence of functional upper 
teeth. 
\Hypocctus , n. nom., Lydekker, op. cit. p. 7, to replace Mesocetus, 
Moreno, 1892, nec Van Beneden ; Diaphorocetus, n. nom., Ameghino, 
Bol. Ac. Cordoba, xiii, p. 437, in the same sense. 
3. t^QUALODONTIDiE. 
■\Prosqualodon, n. g., australis , n. sp., Lydekker, An. Mus. La Plata, Pal. 
Arg. ii, art. 2, p. 8, Tertiary, Patagonia (1893). Among other 
characters, the genus differs from Squalodon in the possession of 
nasals partially roofing the nasal cavity. 
f Squalodon zitteli , n. sp., Paquier, Mem. Soc. geol. France, Pal. iv, 
art. 12, p. 15, Miocene, France. 
4. fARGYROCETID^J. 
f Argyrocetus, n. g., patagonicus, n. sp., Lydekker, An. Mus. La Plata, 
Pal. Arg. ii, art. 2, p. 10, Tertiary, Patagonia (1893). 
5. Platanistid^i. 
f Argyrodelphis, n. nom., Lydekker, op. cit. p. 12, to replace Notocetus, 
Moreno, 1892, nec Notiocetus, Ameghino ; Diochotichus , n. nom., 
Ameghino, Bol. Ac. Cordoba, xiii, p. 438, in the same sense, 
f Schizodelphis depereti, n. sp., Paquier, Mem. Soc. geol. France, Pal. iv, 
art. 12, p. 7, Miocene, France. 
