Biology BulletinBiology BulletinИзвестия Российской академии наук. Серия биологическая1026-34703034-5367The Russian Academy of Sciences64778510.31857/S1026347024040049VHYVASZOOLOGYЗООЛОГИЯResearch ArticleSkin morphology of five species of rock lizards of the genus Darevskia (Lacertidae, Squamata)Морфология кожи пяти видов скальных ящериц родa Darevskia (Lacertidae, Squamata)ChernovaO. F.ЧерноваО. Ф.
Russian Federation
olga.chernova.moscow@gmail.comGaloyanE. A.ГалоянЭ. А.
Russian Federation
olga.chernova.moscow@gmail.comIvlevYu. F.ИвлевЮ. Ф.
Russian Federation
olga.chernova.moscow@gmail.comA. N. Severtsov Institute of Ecology and Evolution, Russian Academy of SciencesИнститут проблем экологии и эволюции им. А.Н. Северцова Российской академии наук26102024446046728012025Copyright ©; 2024, Russian Academy of SciencesCopyright ©; 2024, Российская академия наук2024Russian Academy of SciencesРоссийская академия наукhttps://medjrf.com/1026-3470/article/view/647785

The microstructure of the tuberculate dorsal and lamellar ventral skin of the body in rock lizards of different ages (Darevskia raddei, D. nairensis, D. valentini, D. dahli, D. armeniaca) has been described for the first time. The thickness of the skin in the most xerophilic species (D. raddei) is less than that in the more hygrophilic species. Rock lizards have single or paired longitudinal skin folds that are not closed from the side, which stretch along the inner side of the scales to its distal edge. Small folds are also present in the lining of the squamous pocket; they consist of all layers of the skin and subcutaneous tissue. A large fold is able to completely block the cavity of the squamous pocket, the volume of which changes with the contraction of the subcutaneous muscle bundles reaching the bases of the scales. Small folds are also present on the scales of tuberous skin. In hygrophilic lizards (Zootoca vivipara), similar formations appear at later stages of postnatal ontogenesis than in rock lizards. The probable functional significance of the described skin structures is discussed.

Впервые описана микроструктура бугорчатых дорсальных чешуй и брюшных щитков туловища у разновозрастных особей скальных ящериц (Darevskia raddei, D. nairensis, D. valentini, D. dahli, D. armeniaca). Толщина кожи у наиболее ксерофильного вида (D. raddei) меньше таковой у гигрофильных видов. На чешуе скальных ящериц имеются единичные или парные продольные незамкнутые сбоку кожные складки, которые тянутся по внутренней стороне чешуи до ее дистального края. Мелкие складки присутствуют и в выстилке межчешуйного кармана. Они состоят из кожи и подкожной клетчатки. Крупная складка способна полностью перегораживать полость межчешуйного кармана, объем которого может изменяться при сокращении пучков подкожной мускулатуры, достигающих оснований чешуй. На чешуях бугорчатой кожи мелкие складки также присутствуют. У мезофильных ящериц (Zootoca vivipara) сходные образования возникают на более поздних стадиях постнатального онтогенеза, чем у скальных ящериц. Обсуждается вероятное функциональное значение описанных кожных структур.

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