Nutritional Freshwater Life
122
on which a particular population lives,
but the body whorl is usually around
three-fourths of the total length of the
shell. Aperture is usually crenulated
in mature dog whelks. The external
shell color is usually a whitish gray,
but can be a wide variety of orange,
yellow, brown, black, or banded with
any combination of these colors. They
can even, occasionally, be green, blue,
or pink (MarLIN).
Nutritional Facts
Proximate Composition of Foot
Tissue (% DM)
Moisture a Protein
Fiber Ash
73.69
82.25
1.50
8.0
a Wet weight.
Minerals of Foot Tissue (mg/100 g)
P
K
Fe
Zn
Ca
Mg
60.19 72.40 11.09 1.32 181.49 31.73
Source: Data from Eneji et al. (2008).
Lanistes varicus Müller 1774
Common name: Apple snail.
Distribution: Africa and Madagascar.
Habitat: Irrigation channels, streams
and lakes; inhabits shallow, muddy
pools of river banks.
Description: Snails of this genus have
a hyperstrophic sinistral shell, but the
body of it is dextral.  Size of the shell
is 60 × 65 mm. Shell is approximately
globose with evenly curved whorls.
There is a large aperture and wide
umbilicus. Shell color is brown and
unbranded (Brown, 2002).
Nutritional Facts
Proximate Composition of Foot
Tissue (% DM)
Moisture a Protein
Fiber Ash
75.80
70.00
1.25
8.0
a Wet weight.
Minerals of Foot Tissue (mg/100 g)
P
K
Fe
Zn
Ca
Mg
62.52
69.39 10.10
1.30
152.70 30.56
Source: Data from Eneji et al. (2008).