Köhler Gunther, Pérez Raúl Gómez Trejo, Petersen Claus Bo P, de La Cruz Fausto R Mendez
Senckenberg Forschungsinstitut und Naturmuseum, Senckenberganlage 25, 60325 Frankfurt a.M., Germany; Email:
Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México (UNAM), Avenida de los Barrios 1, Los Reyes Iztacala, C.P. 54090, Estado de México, México; Email: unknown.
Zootaxa. 2014 Jan 9;3753:453-68. doi: 10.11646/zootaxa.3753.5.4.
We describe the new species Anolis peucephilus sp. nov. from the Pacific versant of southern Mexico. Anolis peucephilus differs from all congeners by having a combination of (1) smooth ventral scales; (2) usually a patch of three greatly enlarged supraocular scales; (3) extremely short hind legs, longest toe of adpressed hind leg reaching to a point between levels of axilla and ear opening, ratio shank length/snout-vent length 0.18-0.21; (4) circumnasal usually in contact with first supralabial; and (5) a large yellowish orange dewlap in males and a very small to small white dewlap in females. In external morphology, A. peucephilus is most similar to A. omiltemanus from which it differs by having even shorter hind legs with the longest toe of adpressed hind leg reaching to a point between levels of axilla and ear opening (versus usually to ear opening, occasionally to slightly beyond ear opening or to a point between shoulder and ear opening in A. omiltemanus), a slightly larger dewlap in females, to 64 mm2 (versus to 41 mm2 in A. omiltemanus), the circumnasal usually in contact with the first supralabial (versus those scales separated by the presence of a subnasal in A. omiltemanus), and 4-6 internasal scales in the new species (versus usually 6-7 in A. omiltemanus). Furthermore, A. peucephilus differs from A. omiltemanus in hemipenial morphology (no finger-like processus on asulcate side in A. peucephilus versus such a processus present in A. omiltemanus). Also, in a preliminary molecular genetic analysis of the mitochondrial CO1 gene fragment, A. peucephilus has a genetic distance of 11.5% from A. omiltemanus. Anolis peucephilus was collected at night while the lizards were sleeping in pine trees, 2-10 m above the ground.
我们描述了来自墨西哥南部太平洋沿岸的新物种——小头安乐蜥（Anolis peucephilus sp. nov.）。小头安乐蜥与所有同属物种的区别在于具有以下组合特征：（1）腹鳞光滑；（2）通常有一片由三个极大的眶上鳞组成的斑块；（3）后腿极短，后肢贴体时最长趾到达腋窝和耳孔之间的位置，胫长/吻肛长的比例为0.18 - 0.21；（4）环鼻鳞通常与第一上唇鳞接触；（5）雄性有一个大的橙黄色喉扇，雌性有一个非常小至小的白色喉扇。在外部形态上，小头安乐蜥与奥氏安乐蜥（A. omiltemanus）最为相似，但与之不同的是，其后腿更短，后肢贴体时最长趾到达腋窝和耳孔之间的位置（而奥氏安乐蜥通常到达耳孔，偶尔超出耳孔或到达肩部和耳孔之间的位置），雌性喉扇稍大，可达64平方毫米（而奥氏安乐蜥为41平方毫米），环鼻鳞通常与第一上唇鳞接触（而奥氏安乐蜥的这些鳞片被一个鼻下鳞隔开），新物种有4 - 6枚鼻间鳞（而奥氏安乐蜥通常有6 - 7枚）。此外，小头安乐蜥在半阴茎形态上与奥氏安乐蜥不同（小头安乐蜥无沟侧的指状突起，而奥氏安乐蜥有）。同样，在线粒体CO1基因片段的初步分子遗传分析中，小头安乐蜥与奥氏安乐蜥的遗传距离为11.5%。小头安乐蜥是在夜间收集的，当时蜥蜴们正在离地2 - 10米的松树中睡觉。
