Structural features and lamellar mechanoreceptors of the collared peccary’s tongue (Pecari tajacu, Linnaeus 1758)

Tiago da Silva Teófilo, Mychel Raony Paiva Teixeira de Morais, Maurina Lima Porto, Diogo Manoel Lopes de Paiva Cavalcanti, Anaemília das Neves Diniz, José Domingues Fontenele-Neto


Collared peccaries are omnivorous mammalians well known for presenting a prominent skin gland, known as scent gland. We’ve previously described the histological organization of the palate and lip of this peccary and found several small and large lamellar corpuscles (Vater-Pacini corpuscle) mostly grouped in small aggregates distributed along its lamina propria-submucosa. Here, we described the anatomic structure and histological organization of the tongue of the collared peccary by means of light microscopy. The main features were the presence of a prominent rostral anterior salivary gland and the widespread presence of lamellar corpuscles that could contribute to the tactile function of the tongue.


Vater-Pacini corpuscle; oral cavity; suids.

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