In Mollusca, eye is present over a stalk, called
ostracum
operculum
ommatophores
osphradium
C.
ommatophores
In Mollusca, each eye is located upon a stumpy peduncle called ommatophore.
Mantle, a loose skin fold, dorsally covers Mollusca body and encloses a mantle cavity. It further contains rectum, genital duct, a penis and a small chemoreceptor called Osphradium.
The large, oval aperture or mouth of the shell can be tightly closed by a thick, plate- like operculum attached to the foot.
In frog heart, there are cardiac muscles which consists of fibres called
Purkinje fibres
myonemes
telodendria
columnae carnae
Malphigian tubules are
excretory organs of insects
excretory organs of frog
respiratory organs of insects
endocrine glands of insects
