arr. 16, TWO SQUALODONTS FROM MARYLAND—KELLOGG. 31 
and not toacetacean. At present this form is too imperfectly known 
to be discussed, and if the type is still in existence it will need to be 
restudied and figured to show whether Meyer was right or not. 
PHOCODON SCILLAE Agassiz. 
See Squalodon melitensis (Blainville). 
SQUALODON SERRATUS Davis. 
Squalodon serratus Davis, J. W., Sci. Trans. Roy. Dublin Soc., ser. 2, vol. 4, 
pp. 46-48, pl. 7, fig. 9, 1888.—Hau, T. S., Proc. Roy. Soc. Victoria (n. s.), 
vol. 23, pt. 2, art. 23, p. 258, 1911. 
Type specimen.—Consists of a single tooth enveloped in a matrix 
of light-colored calcareous sandstone. ‘‘The crown only is exposed 
and consists of a number of cones, of which six are visible, having 
obtusely pointed apices.’’ Type in the Canterbury Museum, Christ- 
church, New Zealand. 
Ty pe locality. — White Rock River Quarry,’’ New Zealand. There 
is some uncertainty about this locality. According to the Geological 
Survey Department of New Zealand it is not White Rock River, 
Pareora, but probably ‘“‘ White Rock” Quarries, Okuku River, North 
Canterbury.*® This squalodont should be referred to the Ototaran 
stage. Oamaru system; Oligocene or Lower Miocene. 
Subsequent allocation.—Hall states that he ‘‘would doubtfully place 
this form under the synonymy of Sanger’s species” Metasqualodon 
harwoodi. 
ARIONIUS SERVATUS Meyer. 
Arionius servatus Meyer, H. von, Neues Jahrbuch fiir Mineralogie, Stuttgart, 
pp. 315-331, 1841; Palaeontographica, Cassel, vol. 6, pp. 31-43, pl. 6, figs. 1-9, 
1856-1858. 
Type specimen.—Consists of an incomplete skull which was par- 
tially embedded in a large block of sandstone. The symphysial 
portion of the lower jaws, conical teeth, and other bones were also 
preserved in this slab. Type in the “ Wiirttemb. Naturalien Samm- 
lung’’ at Stuttgart, Germany. 
Type locality.—Sandstone formation of Baltringen, near Biberach, 
Wiirttemberg, Germany. Vindobonian or Middle Miocene. 
Subsequent allocation.—Van Beneden* referred this form to the 
genus Squalodon. If Delphinus molassicus of Bronn“ belongs to the 
same species as the skull upon which Arionius servatus Meyer was 
based, then this last mentioned species will stand as a synonym of 
Squalodon molassicus (Bronn). This allocation is open to question, 
for Schiibler’s rostral fragment is so imperfect that actual comparison 
of the two specimens would be necessary to decide their relationship. 
39 Hector, J.. New Zealand Geol. Surv. Report, vol. 22, p. 119, 1894; Morgan, P. G., New Zealand 
Geol. Surv., Paleont. Bull. No. 7, p. 37, 1918. 
40 Van Beneden, P. J., Ostéographie des Cétacés, Paris, pp. 438-439; Atlas, pl. 28, figs. 22-24, 1880. 
“| Bronn, H. G., Neues Jahrbuch fiir Mineralogie, Stuttgart, p. 732, 1837. 
