Citelus fulvus
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English: Aral yellow souslik, peschaniki
German: Gelbziesel
French: Spermophile jaune
Spanish: Mamerto de la estepa, peschanici
Distribution areas
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The Aral yellow souslik, also called
peschaniki, is an important for species
which lives in the prairie areas of Middle
Asia and Mongolia.
Description of the fur
---------------------- The surface structure
The skins are usually 30 cm, and in some of the skin, 200x
cases up to 40 cm long. The colour of the
fur coat is yellow-grey; the guard hairs are lustrous and dark coloured at
the tips. The guard hairs are substantially longer than the under-fur fibres.
The fine fur fibres are from 8 to 15 mm long while the guard hairs are from
20 to 30 mm long. The coat is relatively thin; the density of the fibres is
not high.
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Citelus fulvus
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English: Aral yellow souslik, peschaniki
German: Gelbziesel
French: Spermophile jaune
Spanish: Mamerto de la estepa, peschanici
Structure of the hair
---------------------
The microscopic structure of the skin
surface is furrowed; the hair follicles are
narrow with straight edges, and contain a
cluster of hairs in each follicle.
The fine fur fibres are circular in
cross-section, and the cuticle has The cuticular structure
cornet-like scales, which have a smooth of the fine fibres, 2000x
surface and straight margins. These fine
fibres are non-medullated. The diameter of the fibres is 8 to 22 µm.
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Citelus fulvus
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English: Aral yellow souslik, peschaniki
German: Gelbziesel
French: Spermophile jaune
Spanish: Mamerto de la estepa, peschanici
The intermediate fibres are circular in
cross-section at the bottom, and
ellipsoidal in the middle and upper parts,
of the shafts. The diameter of the fibres
is from 25 to 60 µm. The cuticular scales
are rounded tile-like with smooth margins
and a grooved surface. The medulla is
narrow, unbroken and central symmetrical-
-shaped. The overall structure of the The cuticular structure
medulla belongs to the loose uniserial of a guard hair, 2000x
ladder type. The infilling material is
amorphous.
The guard hairs are from 60 to 135 µm in diameter. The cross-sectional
outline is circular at the bottom of the shaft but, in the middle and upper
parts, it is straight-sided and usually tetragonal in shape. The cuticular
scales are even tile-like with a grooved surface and rippled scale margins.
These coarse fibres have a wide medulla, which is unbroken longitudinally and
has a central symmetrical-shaped cross-section.
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Citelus fulvus
--------------
English: Aral yellow souslik, peschaniki
German: Gelbziesel
French: Spermophile jaune
Spanish: Mamerto de la estepa, peschanici
The medulla is mainly of the sheet-like
type but, in some fibres, also of the
spongy-lattice-like type. The infilling
material is foam-like or amorphous.
Transverse section
of a guard hair, 600x
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Citelus fulvus
--------------
English: Aral yellow souslik, peschaniki
German: Gelbziesel
French: Spermophile jaune
Spanish: Mamerto de la estepa, peschanici
Detailed structure
of the medulla, 1000x
Numerical code for Aral yellow souslik skin structure
-----------------------------------------------------
Surface of the skin: 3-4-3
Fine fur fibres: 1-5-1-1-4-0-0-0-0-8.22-8.15
Intermediate fibres: 1.2-3-2-1-3-1-1-2-8-25.61-12.25
Guard hairs: 1.6-2-2-2-1-1-1-14.6-5.8-60.135-20.31
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