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 ?
We found significant relationships between plastron length and most of the clutch variables in both species (Table 1; Fig.
This intricate structure suggests that spiracles on thrips function as plastrons (Moritz 1985, 1997).
As in the previous situation, beginning in the en garde position, the fencers lunged as swiftly as possible trying to place the sword point inside the circle that appeared within the plastron ([S.
Below: ratios of the diagnostic nuchal scute (in carapace) to other identifiable elements of carapace and plastron (Figure 5 shows scute locations).
Morphologca1 measurements taken from each captured terrapin Straight-line carapace length Straight-line carapace width (SLCL) (SLCW) Plastron length (PL) Shell depth (SD) Weight
Lifting them by the tail with a supporting hand under their plastron (belly shell), away from your body, is the safest method.
1999), who indicated that the scale-like setae help the animals survive inundations by using plastron respiration.
The plastron was yellowish and except for some widely-scattered stains on the gular, humeral, femoral, and anal scutes, was unmarked (Fig.
The top part - or carapace - and bottom part - the plastron - are actually an extension of her ribs.
marmorata more often exhibited a pair of triangular plates where the plastron (lower shell) and carapace (upper shell) met mid-shell, and a sharp contrast in color between the side and underside of the neck.
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).