Th
MUSK.
1395
j'Mt, j t j ® ac ls of an oval form, ratlier broader at the anterior than at the posterior■ 1 c onv E Y hi a,K ^ smoot * 1 a l ,ove where it is in contact with the abdominal muscles,'k l e,l £ t h f e ow ’ (supposing the animal standing). Its breadth is from IJ to 1J inches;?k ut one-h 0 !? ^ tU ^ ' nc ' ,es > ' ts depth varies, being- greatest anteriorly, where it is“ <; nie(Ji an r ' 0r .^‘^^ is °f an inch. The external aperture of the musk sac is placed incanal ' '"t’ but nearer to the anterior than the posterior extremity of the sac. The° { Pert Ure . 1S . a bout l or 1J lines long, its diameter b eing about one line. The internal° a Ud in a. 16 nius k sa c is surrounded by fine hairs, which readily fall off, and arelu the musk of commerce. " 3
Fl o. 263.
Fig. 264.
Fig. 263.
, r Musk Sac.1 ru »cated
I’he
folio
Mush Sac, deprived of itshairy coat, to shew itsmuscular coat.
a. Portion of the truncated Penis ,c. Aperture of the Musk Sac.
Mush Sac, deprived of itshairy coat and circularmuscular fibres,c. Aperture of the Musk Sac.
%)» ® u< er Tr An£~ re 1,16 P arts of which the musk sac consists:—"‘aha? Port!
v r r t,o « °?thT or
c Ula
Ptl.
,lc tw e ;
.ll(XT
fascism.) .««*, e ^f;j s e [ be r a e s thTcor
.„r d ai i x' , ra u Lr%r« r 7ieV »'“?■!. f 1 '; i ”
■ Fhe same na*.•'-*- 1 '
tin —This is a continuation of the hide, and covers thesac. Its hairs are stiff but smooth, and disposed in a circularexterna] musk orifice.coat .—This consists of two strata of fibres which surround the sac in a
D.ii . — -
the J tl *® me i natura li s t has described two retractors of the peuis.
266.
strata of muscular fibres is placed the penis, which is remarkablefrom the circumstance of the urethra projecting beyond the extre-mity of the glans. In its usual state the penis lies rolled up withinthe belly. * r
On the inner surface of the muscular fibres is a number of smalloblong or roundish glands (see Fig. 265), compared by Pallas tothe meibomian glands of the palpebrtE.
3. Fibrous coat. —This is the most external of the proper coats°f the musk sac. On its inner surface are numerous depressions orcells, surrounded by ramifying folds, within which the blood-vesselsramify. This coat is continuous (through the musk orifice) withthe corium.
4. Pearly coat. —A soft delicate membrane, shining- like mother-of-pearl. It lines the cells, and covers the folds of the fibrous coat.
o. Epidermoid coat. —It is the inner lining of the sac. Its ex-ternal layer is silvery white : its internal one yellowish or reddish-brown.
^.Coat 0 f Mush glands —In each of the depressions observed on the
s ”, °r reddisi 6 I * 1 " 8 ' 1 sac ’ are found two or more irregular shaped bodies of a
. ■ |> U to be , WI1 colour. These bodies consist of a central brownish mass
>y ;* l ys of tl" cov *red by a fine membrane.
aH, t *d , c °ntract 1 7 ^ ^ ac '—Pallas found, that, in young animals, the sac was
“ b a.- 1( 1 in olfi a G - 1 11 t ^ ie a( lult animal it contained about a drachm and a half of
«e, s i,„' ( . ,,' maF ni ore than two drachms. But these quantities must he below
% „
* he Alos
l^ erU; -
J-elj^al
hi*
Thnt. r r wc?JV »ae, ar<
7 - cl d . 10 be .i Sh ‘. br0H,n colour.
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