. The life-history of British lizards and their local distribution in the British Isles. tal small, usually smaller than the inter-parietal ; temple covered with irregular flat scales,among which a masseteric is often, and a tympanicconstantly, distinct. Gular fold feebly marked, orabsent. 14 to 21 gular scales on a line betweenthe collar and the third pair of chin shields ; collarwith serrated edge, composed of 7 or 9 plates. Dorsalscales hexagonal, longer than broad, more or lessdistinctly keeled, not or but slightly imbricate, some-wiiat smaller than the laterals, which are smooth;nuchal sc
. The life-history of British lizards and their local distribution in the British Isles. tal small, usually smaller than the inter-parietal ; temple covered with irregular flat scales,among which a masseteric is often, and a tympanicconstantly, distinct. Gular fold feebly marked, orabsent. 14 to 21 gular scales on a line betweenthe collar and the third pair of chin shields ; collarwith serrated edge, composed of 7 or 9 plates. Dorsalscales hexagonal, longer than broad, more or lessdistinctly keeled, not or but slightly imbricate, some-wiiat smaller than the laterals, which are smooth;nuchal scales roundish, smooth, or nearly so; 2lateral scales correspond to the length of a ventralplate; 26 to 37 scales across the middle of thebody. Ventral plates in 6 or 8 longitudinal series,the second series on each side from the median ventralline the largest; 24 to 30 transverse series. Twosemicircles of scales border the pre-anal shield. Theadpressed limbs meet, or the hind-limb reaches thewrist or the elbow. Foot usually longer than thehead. Femoral pores, 7 to 13. Tail thick, once. SAND LIZARD. [Faclnc^/>. 93. SPECIFIC CHARACTEKS OF BRITISH LIZARDS 93 and two-fifths to once and two-thirds as long as headand body; caudal scales large, upper strongly keeledand pointed posteriorly. Brown, yellowish, or reddishabove in the adult, with small darker and lighterspots; frequently a blackish vertebral streak and adark lateral band edged with yellowish ; lower surfacesorange or vermilion in the male, largely spotted withblack; yellow or pale orange in the female, imma-culate or scantily spotted with black. Newly-bornyoung almost black, which colouration sometimes per-sists in the adult. Male. Female. Mm. Mm. Total length 151 178 Head ...... 12 12 Width of head .... 9 9 From end of snout to fore-limb 19 23 From end of snout to vent 53 73 Fore-limb. ..... 17 18 Hind-limb 24 25 Tail 98 105 <( Northern and Central Europe ; Northern Asia. Lacerta agilis, the Sand Lizard. Habit stoute
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Keywords: ., bookcentury1900, bookdecade1900, bookidlifehistoryo, bookyear1903
