(bottom shell) is reduced in size, exposing large fleshy areas around the base of each leg.
Spiracles on desert Phlaeothripidae appear to function as plastrons
by repelling water and trapping air.
to the dimensions of the plastron
scute (HSW, PS-AS, AX-IN and PL), the curved carapace length (CCL) and carapace constriction (CW7-8, CW5-6).
After a tortoise was removed from a trap, the plastron
was brushed by hand and rinsed with approximately 3-5 ml of phosphate-buffered saline (PBS) to remove fine particulate matter.
The model transcends sexual identity of the turtles by using data on three-year old females to predict plastron
length in melanistic males.
and carapace were inspected for damage indicative of disease or scavenging, and all shell and non-shell elements were collected and saved for inspection in the laboratory.
The PCA shows an overlap between plastrons
of slow and fast growing hatchlings and the two main axes explain 36% of the variation in weight matrix (Figure 3).
Moreover, with recent image analysis techniques (Davis and Grayson, 2007; Davis and Maerz, 2007), bilateral scute pairs in turtle shells, especially those on the flat ventral plastrons
, can now be easily photographed and measured digitally which should allow researchers to record even subtle deviations in left-right scute sizes.
Virtually all hatchlings manifested mandibular cusps, eyebars and reddish plastrons
47 Mochii Yasutaka [Chinese Text Omitted]("In ocho no kozo ni kansuru ichi shiron" [Chinese Text Omitted], Toyo bunka kenkyujo kiyo [Chinese Text Omitted] 82 : 64-88) has identified a group of approximately 220 "Ding lineage" (dingzu [Chinese Text Omitted]) inscriptions, all carved on turtle plastrons
, excavated mainly from YH251 and 330.
Counting growth annuli is more accurate for younger turtles due to the tendency for annuli to grow closer together with age and for plastrons
to wear smooth, obliterating annuli (Galbraith and Brooks, 1987; Brooks et al.
Carapaces proved more useful than plastrons
to examine temporal aspects of disarticulation.