[1a´.] [Scalpellum ornatum], Upper latus, viewed internally.
![[1a´.]](#475865927904411783_p06f1a.png.id-2922180705384395149.wrap-0.html.html){kind=link}
[1b´.] [Scalpellum ornatum], Scutum of full-grown specimen, viewed internally, much magnified.
![[1b´.]](#475865927904411783_p06f1b.png.id-1882480104345502369.wrap-0.html.html){kind=link}
(a.) Depression for the adductor muscle.
(b.) Depression for the reception of the male.
[1c´.] [Scalpellum ornatum], cutum of half-grown specimen, viewed internally, much magnified, on same scale with fig. 1 b´. The depression (b) for the reception of the male is here seen, in almost the first stage of formation.
![[1c´.]](#475865927904411783_p06f1c.png.id-2948107670118728753.wrap-0.html.html){kind=link}
[1d´.] [Scalpellum ornatum]. An imaginary section through the cavity (x) in which the male is lodged.
![[1d´.]](#475865927904411783_p06f1d.png.id-9169624978718471595.wrap-0.html.html){kind=link}
(a.) Section of the shell of the scutum of the female.
(b.) A layer of chitine homologous with the shell, and partially lining the scutum.
(c.) The inner lining (of chitine) of the sack of the female.
(d.) A double fold of corium.