body length of S. aquaticus is 110-170 mm, tail length
is 18-38mm. Adults weigh from 40-140 grams with males tending
to be larger than females. Color ranges from black to gray to
brown or copper. The fur is dense and velvety, covering all
but the feet, tail and tip of the snout and hiding small pairs
of eyes and ears.
The name aquaticus refers to a type of webbing between the toes
rather than a preference for water, though this mole is a capable
Habitats include well-drained soil in fields, meadows, pastures
and open woodlands. S. aquaticus tunnels in search of
food, leaving soil ridges from shallow tunnels. More permanent
subterranean tunnels are constructed as passages to shelters
and feeding grounds, and in the northern parts of its range,
S. aquaticus builds deeper tunnels in the winter than
in the summer, digging as much as 4.5 meters in an hour. Ranges
average 1.09 ha. for males and 0.28 ha. for females.
The diet of S. aquaticus consists mainly of earthworms,
but includes other insects and their larvae along with some
Breeding occurs once per year and gestation varies from 30-45
days. Litter size is between 2 and 5, with the offspring becoming
independent at about 1 month. They are sexually mature by the
following breeding season.
S. aquaticus is found in N Tamaulipas and N Coahuila
(Mexico) through E USA to Massachusetts and Minnesota.