tympana


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Related to tympana: Tympanon

tympana

(tĭm′pə-nə)
n.
A plural of tympanum.

tympana

See tympanic.
References in periodicals archive ?
Legs: Fore tibia normal (quadrangular), tibial tympana conchate on anterior (internal), open on posterior (external) side; mid tibia with dorsal margins little widened in basal half; hind femur widened in basal half, narrow in apical half; hind tibia with both dorsal margins strongly expanded conferring a leaf-like appearance (Fig.
The tympanum, so beautifully composed and elegantly placed, was, as I have mentioned, certainly among the first tympana in Europe.
The genus Mesoclemmys is part of the toadhead complex of chelid turtles with the following characteristics: A head width between the tympana 15-20% of the median straight length of the carapace.
Thus, the tympana are mechanically linked by a relatively rigid cuticular bridge, a fact that can also be easily assessed by gently deflecting one tympanic membrane downwards with a human hair, and observing the other deflect upwards as a result.
They have strongly reduced wings and feature a confusing mixture of morphological characteristics, such as spiny fore tibiae, unconcealed tympana, and tiny auditory spiracles.
The same chronicler recorded the rejoicing at the election of a new king who found favour with everyone: "One sang, another played on the cithara, another beat on the drums, another sounded the lyre" (lste melodizat, alius cithara citharizat, tympana pulsabat hic, ille lyra resonabat) and after the coronation of John of Luxemburg in Prague in 1311 an exultant throng played in tubis, cytharis et organis, tympanis et choris et in omni genere musicae.
Tympana exposed; forecoxal spine absent; each genicular lobe of forefemur lacking ventro-apical spine (rarely with one spine or with an additional dorso-apical spine); midfemur with inner genicular lobe with one minute ventro-apical spine, outer lobe unarmed (rarely with one ventro-apical spine); both genicular lobes of hind femur unarmed.
Legs velvety, setose; tibia I without auditory tympana, furnished with a pair of ventral spurs, the external one longer and thicker than the internal; tibia II similar to tibia I, but with the internal apical spur longer than the outer; inner face of tibia III with three dorsal spurs and two apical ones, the inferior slightly longer; outer face of tibia III with 4-5 dorsal spurs and 3 apical ones, the median the longest.