Table 1 in Two new species of monitor lizards (Squamata: Varanus) endemic to the Louisiade and Tanimbar Archipelagos with a key to the subgenus Euprepiosaurus
收藏资源简介:
Table 1. Definitions of, and abbreviations used for, measurements, mensural ratios, and scale counts. SymbolDescriptionMeasurementsAHead length from snout to anterior dorsal margin of tympanumBHead width at maximum span of postorbital archCHead depth at midpoint of orbitDHead–neck length from tip of snout to gular foldEBody length from gular fold to cloacaFTail length from cloaca to tip of tailGFacial length from centre of nostril to anterior margin of orbitHSnout length from tip of snout to centre of nostrilTLTotal lengthSVLSnout to vent lengthMensural ratios1Relative tail to body length – F/ SVL10Relative head length to head width – A/B11Relative head length to head height – A/CScale countsSMidbody scale rowsXYDorsal scale rows from posterior margin of tympanic recess to anterior margin of hind limbsTRows of ventral scales from gular fold to anterior margin of hind limbsXRows of dorsal scales from posterior margin of tympanic recess to gular foldmScales around neck at anterior margin of gular foldNRows of ventral scales from tip of snout to gular foldPScales from rictus to rictus across dorsum of headQScales around tail baseRScales around tail counted at 1/3 of tail length from the baseDORNumber of dorsal scale rows from the last occipital scale to a point dorsal to the posterior margin of the cloacaVENVentral scales from the gular fold to the anterior margin of the cloaca
表1 测量指标、量度比率及鳞片计数的定义与缩写 ## 测量项 A 头长:从吻端至鼓膜背侧前缘 B 头宽:眶后弓最大跨度处的头宽 C 头高:眼眶中点处的头高 D 头颈长:从吻端至颈褶的长度 E 躯干长:从颈褶至泄殖腔的长度 F 尾长:从泄殖腔至尾尖的长度 G 面长:从鼻孔中心至眼眶前缘的长度 H 吻长:从吻端至鼻孔中心的长度 TL 总长度(Total length, TL) SVL 吻肛长(Snout to vent length, SVL):从吻端至泄殖腔的长度 ## 量度比率 1 相对尾躯干长:F/SVL 10 相对头长头宽比:A/B 11 相对头长头高比:A/C ## 鳞片计数 S 体中鳞列数:体中部鳞列数 XY 背鳞列数:从鼓膜隐窝后缘至后肢前缘的背鳞列数 T 腹鳞列数:从颈褶至后肢前缘的腹鳞列数 X 背鳞列数:从鼓膜隐窝后缘至颈褶的背鳞列数 m 围颈鳞数:颈褶前缘处的颈部围鳞数 N 腹鳞列数:从吻端至颈褶的腹鳞列数 P 头背跨鳞数:从口角至口角、横跨头背的鳞数 Q 尾基围鳞数:尾基部围鳞数 R 围尾鳞数:尾基部1/3处的围尾鳞数 DOR 背鳞列数:从最后一枚枕鳞至泄殖腔后缘背侧点的背鳞列数 VEN 腹鳞数:从颈褶至泄殖腔前缘的腹鳞数



