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Together with the Great Plains skink it is the largest of the "Plestiodon skinks", growing from a total length of 15 cm (5.9 in) to nearly 33 cm (13 in). A male broad-headed skink, illustration from Holbrook's North American Herpetology, 1842. The broad-headed skink gets its name from the wide jaws, giving the head a triangular appearance.
Male Solomon Islands skinks tend to have a broader head and a more slender body shape than female skinks. [15] Males have a V-shaped pattern of scales just aft of the cloacal opening, which is not present in female skinks. [15] The scales of Solomon Islands skinks are a dark green but are often speckled with light brown or black. [4]
The broad-headed skink, P. laticeps, is similar, and may be difficult to distinguish from P. fasciatus. The former species usually lacks the two enlarged postlabial scales characteristic of P. fasciatus. [7] [8] Adult male broad-headed skinks, with their large size and swollen red head, are readily distinguished from P. fasciatus. [9]
The population of the species has radically decreased over the past decade. [8] Silky sifaka: Propithecus candidus: 250 [9] CR [9] [9] Estimate is believed to be a maximum. [9] Tonkin snub-nosed monkey: Rhinopithecus avunculus: 250 [10] CR [10] [10] Barbara Brown's titi: Callicebus barbarabrownae: 260 [11] CR [11] [11] Minimum estimation. [11 ...
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The conspicuous coloring of species of Plestiodon is a survival trait: it attracts a predator's attention to the tail of the animal, which will break off when grabbed. A skink thus often manages to escape and hide under some rock, log, or fallen leaves while the predator still contemplates the wildly thrashing severed tail.
The coal skink mates in spring or early summer, laying a clutch of 8 or 9 eggs. Their eggs are typically around 10–11 mm in length. [5] Courting for this species usually involves the male's initial investigation and recognition of a potential female through pheromonal cues. [6]
Other large members in the genus Plestiodon are a broad-headed skink (Plestiodon laticeps) and a Great Plains skink (Plestiodon obsoletus) with a maximum length of 32.4 cm (12.8 in) [163] and 34.9 cm (13.7 in) [164] and a SVL 14.3 cm (5.6 in) [163] and 14 cm (5.5 in) [165] respectively. The genus Chalcides includes many legless or almost ...