plastron


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plastron

[′plas‚trän]
(invertebrate zoology)
The ventral plate of the cephalothorax of spiders.
(vertebrate zoology)
The ventral portion of the shell of tortoises and turtles.
References in periodicals archive ?
En tortugas solo podemos acceder por los espacios que dejan el caparazon con el plastron a nivel inguinal, axilar o clavicular (pata bien estirada).
Sin embargo se aprecia una ligera separacion de dos sitios permanentes (92 y 96) que tienen organismos que respiran basicamente por plastron, y los sitios intermitentes (106, 107 y 110) con organismos de respiracion por estigmas.
In the mature chelonian, the plastron of the male is concave and the plastron of the female is flat.
Morphological structures and vertical distribution in the soil indicate facultative plastron respiration in Cryptocellus adisi (Arachnida, Ricinulei) from central Amazonia.
58) The smaller of these turtles, previously described by Strauch in 1862 as Clemmys wosnessenskyi, was portrayed in his 1862 work in a color plate depicting the plastron, carapace, and profile of the turtle.
Later, in 2002, I identified additional "Emydoidea hutchchisoni" material from the Miocene (Barstovian) of Nebraska and suggested that "Emydoidea hutchisoni" was akinetic (lacked a movable plastron) because of the presence of well developed plastral buttresses and lack of a hinge line in a well-preserved plastron (University of Nebraska State Museum [UNSM] 117938).
Without a shell, their leathery, oil-saturated skin and underlying plastron enable them to dive over a half a mile deep and still withstand the intense pressures of the deep ocean.
Ah, el siglo de don Porfirio, sus entorchados, su "matalos en caliente" y las tinajas de San Juan de Ulua y las mazmorras de la carcel de Belen (que ya con el cardenismo se convirtio en escuela); el de los valses y las serenatas romanticas y las corbatas de plastron, y los chambergos de anchas alas de los bohemios verseros y grandes bebedores de ajenjo; el de.
Even though it didn't have a hinged plastron, that belly plate that, on box turtles, swings upward to protect their heads, the turtle's head and legs were tucked under its carapace, well out of harm's way.
Snapping turtles have long tails and a plastron that is greatly reduced to form a cross-shaped ventral plastron.
Briefly, the plastron was removed and the gonads were examined under a dissection microscope.