baculum

/ (ˈbækjʊləm) /

a bony support in the penis of certain mammals, esp the carnivores

Word Origin for baculum

C20: New Latin, from Latin: stick, staff

There is a knoblike process on the crest at a point three fourths the length of the baculum from its base.

Genera and Subgenera of Chipmunks |John A. White
The baculum does not, however, suddenly reach its maximum maturity.

The Baculum in Microtine Rodents |Sydney Anderson
The total length of the baculum, considered together with its shape, serves to identify to species all specimens examined by me.

Speciation and Evolution of the Pygmy Mice, Genus Baiomys |Robert L. Packard
I have studied the baculum in chipmunks and in all the major supraspecific groups of Nearctic squirrels.

Genera and Subgenera of Chipmunks |John A. White

The baculum in Glaucomys is the most distinctive of that of any American sciurid.

Genera and Subgenera of Chipmunks |John A. White