SQTJALODONTID^. 77 



49876. Cast of the cranium (imperfect posteriorly) and the mandi- 

 bular symphysis, with the crowns of the teeth broken off. 

 The original was obtained from the Middle Miocene 

 of Bleichenbach, Lower Bavaria ; and is described and 

 figured by Zittel in the ' Palseontographica,' vol. xxiv. 

 pt. 6, p. 233, pi. xxxiii., under the name of Squalodon 

 bariensls. Purchased. 1879. 



M. 1335. A restored plaster-model of the preceding specimen, show- 

 ing the crowns of all the teeth. Purchased^ 1883. 



Squalodon catuUi (Molin '). 

 Syn. Pachyodon catidli, Molin ^. 



This species is distinguished from the preceding by slight Rental 

 characters. The Squalodon teeth from Baltringen were described 

 and figured by Yan Beneden in the ' Bull. Ac. E. Belg.' ser. 2, 

 vol. xli. p. 474, under the name of Squalodon servatas (Meyer) ; but 

 according to Probst, Jahresh. Yer. jSTat. Wiirtt. 1885, pp. 49-G7, the 

 type skulL of this species (Arionus servatus, Meyer) shows dental 

 alveoli unlike those of other Squalodons, and the true Squalodon 

 teeth are referred to the Italian species (see Zigno, ' Mem. E,. 1st. 

 Yeneto,' vol. xx. p. 24 [1876]). 



Hao. Europe (Italy and Germany). 



43633. An anterior tooth ; from the Middle (?) Miocene of Balt- 

 ringen, near Ulm, Wiirtemberg. This specimen agrees 

 very closely with the tooth figured by Yau Beneden, op. 

 cit. fig. 4 (as S. servatus), and with the two teeth figured 

 by Probst, o_p. cit. pi. i. figs. 2, 3. Purchased^ 1859. 



43633 a. The root of an anterior tooth, probably belonging to this 

 species; from Baltringen. Purchased, 1859. 



Squalodon atlanticus, Leidy I 



Syn. Macrophocu atlantica, Leidy *. 



This species is nearly equal in size to S, antverpiensis, Yan 

 Beneden, but is distinguished by the presence of denticulations on 

 the anterior border of the teeth ; the enamel is very rugose. 



Hah. North America (Miocene). 



^ Sitz. k. Ak. Wiss. Wien, vol. xxxv. p. 117 (1859). — TacTiyodcni. 



2 Loc. cit. 



3 Proc. Ac. Nat. Sci. PJiilad. 185G, p. Il'^.—Macroidioca. 

 * Loc. cit. 



