A new species of the genus Oligodon Fitzinger, 1826 (Squamata: Colubridae) from coastal southern Vietnamстатья
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Дата последнего поиска статьи во внешних источниках: 23 января 2016 г.
Аннотация:A new species of the genus Oligodon from the coastal area of Binh Chau–Phuoc Buu Nature Reserve, Ba Ria–Vung Tau
Province, southern Vietnam, is described. Oligodon arenarius sp. nov. is distinguishable from all other species by the
unique combination of the following characters: medium size; 17 dorsal scale rows; 6–8 maxillary teeth, the posterior
three being enlarged; head scalation lacking a loreal but usually including a presubocular; divided nasal; two postoculars;
131–144 ventrals; 36–60 subcaudals; unforked hemipenis, without spines or obvious papillae; sexual dimorphism displayed
in the number of subcaudals (36–40 in females, 58–60 in males) and a relative tail length, tails being quite long in
males (TaL/TL = 0.26–0.28) and moderate in females (TaL/TL = 0.13–0.17); head coloration pattern including ocular
band, temporal bands and chevron-shaped mark on nape; dorsal coloration without distinct pattern, uniform or with dark
speckling; ventrals pinkish in life, immaculate. To date, this species appear to be endemic to Vietnam.