132 EDWARD L. RICE 
CHELONIA—Continued 
Cinosternum....... 2 Siebenrock, 1897. 
Cyclanorbisis 244 3 Siebenrock, 1897. 
Cyclemys.........2 Siebenrock, 1897. 
Dermochelys.......1 Nick, 1912. 
BMS: rch ele NN Oa Ck SOO TE 
2 Fiurbringer, 1897; Kunkel, 1912 b. 
3, Kunkel) 1912) b. 
Geoemydar. 2... 2 Siebenrock, 1897. 
Hydraspis.........2 Siebenrock, 1897. 
INGGOMa en ces 2 Siebenrock, 1897. 
obo 
Podocnemis........ 2 Siebenrock, 1897. 
Staurotypus.......3 Siebenrock, 1897. 
Mestudo a4... ere 2 Siebenrock, 1897. 
AiTOmMWESe ss. bee ete 2 Siebenrock, 1897. 
3 Furbringer, 1897. 
CROCODILIA 
Alligators! aes hace 1 Parker, 1883. 
2 Firbringer, 1897. 
Crocodilussy... +. 4. 1 Parker, 1883 (Record open to question). 
2 Firbringer, 1897; Gaupp, 1905 b. 
3 Shino, 1914. 
4 Shiino, 1914. 
In the Mammalia a single foramen has been described as the 
rule, but the exceptions are becoming startlingly numerous. 
Thus two foramina have been recorded, at least in some speci- 
mens, for Semnopithecus (E. Fischer, ’03, cited by Mead, ’09), 
Talpa (Noordenbos, ’05), Lepus (Noordenbos, ’05; Voit, ’09 b), 
Dasyurus (Broom, ’09), Trichosurus (Broom, ’09), and Lagen- 
orhynchus (de Burlet, ’14b, 716). In man the variability is 
very striking and asymmetry by no means uncommon. A par- 
tial division of the single foramen has been noted by Macklin 
(14) and Kernan (’16), and a complete division, on one or both 
sides, by Levi (’00), Weigner (711), and Lillie (17); occasion- 
ally one of these foramina may be further divided, partially 
(Lillie) or wholly (Weigner), giving a maximum of three for- 
amina—a, condition earlier described by E. Fischer (’03, cited 
by Mead, ’09) for one side of an asymmetrical skull of Semnop- 
ithecus pruinosus. ‘‘From the variations in the form of the 
