Taxonomy and geographic variation of species of the genus Alouatta Lacépède (Primates, Atelidae) in Brazil
Taxonomy and geographic variation of species of the genus Alouatta Lacépède (Primates, Atelidae) in Brazil
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DOI：
10.1590/s0101-81752006000100005
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发表时间：
2006-03-01
期刊：
影响因子：
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通讯作者：
Gregorin, Renato
中科院分区：
文献类型：
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作者：
Gregorin, Renato
在这本专著中，研究了非地理和地理变异的吼猴，属Alouatta Lacepede，1799年，发生在巴西，以解决该集团的分类。对于形态分析，共检查了1,286个标本保存在五个巴西和两个北美博物馆。材料主要由皮肤、头骨和舌骨组成;骨骼或液体保存的标本很少。本研究是基于定性分析的形态复合体，除了18个形态测量特征的头骨和舌骨。在作出分类决定之前，进行了地理、性别、个体发育和个体变异的研究。在巴西发现10种Alouatta，其中大多数是由离散的，但诊断特征。它们是：Alouatta caraya（Humboldt，1812），A. fusca（Geoffroy Saint-Hilaire，1812），A. clamitans Cabrera，1940，A. belzebul（Linnaeus，1766），A. discolor（Spix，1823），A. ululata Elliot，1912; A. juara（Linnaeus，1766），A. macconnelli（Humboldt，1812），A. puruensisLonnberg，1941，和A. 1941年的尼日利亚隆伯格。Alouatta macconnelli和A.在毛色和一些形态特征（多态性）上存在明显的地理差异，难以界定和地理界限。Alouatta belzebul提出了一个突出的地理马赛克的毛色变化。Alouatta ulululata和A. Puruensis被定义为在皮毛上呈现有性双色，但由于样本量小，这一特征可能是人为的，这两个分类群需要进一步的研究来证实其有效性。Alouatta belzebul mexibul Hagmann，1908用A.变色，并且不考虑Alouatta seniculus amazonica Lonnberg 1941的有效性。
In this monograph, was studied non-geographic and geographic variation of taxa of Howling Monkeys, genus Alouatta Lacepede, 1799, occuring in Brazil, in order to solve the taxonomy of the group. For the morphological analysis,were examined a total of 1,286 specimens kept in five Brazilian and two North-American museums. The material consisted mostly of skin, skull and hyoid bone; skeleton or fluid-preserved specimens were scarse. The study was based on qualitative analysis of the morphological complexes in addition 18 morphometric characters of the skull and hyoid bone. Prior to making taxonomic decisions, was conducted a study of geographic, sexual, ontogenetic, and individual variation. Were recognized ten species of Alouatta occuring in Brazil and most of them were defined by discrete, but diagnostic characters. The species are:Alouatta caraya (Humboldt, 1812), A. fusca (Geoffroy Saint-Hilaire, 1812), A. clamitans Cabrera, 1940, A. belzebul (Linnaeus, 1766), A. discolor (Spix, 1823), A. ululata Elliot, 1912; A. juara (Linnaeus, 1766), A. macconnelli (Humboldt, 1812), A. puruensis Lonnberg, 1941, and A. nigerrima Lonnberg, 1941. Alouatta macconnelli and A. clamitans showed noticeable geographic variation on pelage coloration and some morphometric characters (polymorphism) difficulting their definition and geographic limits. Alouatta belzebul presented an accentuated geographic mosaic variation on coat coloration. Alouatta ululata and A. puruensis were defined in presenting sexual dicromism on pelage, but this character can be an artefate due the small sample and both taxa need further studies to confirm their validity. Alouatta belzebul mexianae Hagmann, 1908 was sinonimized with A. discolor, and the validity of Alouatta seniculus amazonica Lonnberg 1941 was not considered.