"The Speciation and the Hybridization of Sulawesi Macaques.

苏拉威西猕猴表现出几种形态类型。Fooden(1969)检查了博物馆收集的标本，并根据它们明确的特征将它们分为7个物种。然而，由于缺乏来自偏远和难以接近的地方的标本，生活在物种之间的边界地带的猴子还没有得到充分的检查。Groves(1980)在黑尾猴和黑腹猕猴之间以及黑尾猴和黑尾猴之间的交界处发现了一些可能的杂交猴子。因此，他将新氏微囊藻归类为黑曲霉的一个亚种，而赫基微囊藻则归为托纳氏微囊藻的一个亚种。由于M.ochreata和M.tonkeana之间的交界处位于距离苏拉威西主要城镇最远的地区，因此一直没有来自该地区的标本，到目前为止，关于猴子及其分布的信息一直很有限。我们有机会调查了在这一推测在M.ochreata和M.tonkeana之间的边界地带的猴子，即在岛的东南半岛最近的部分(Fooden，1969)。因此，我们已经认识到一些杂交猴子的存在。现在，我们正在讨论生物学领域中物种概念的大问题。

Sulawesi macaques exhibit several morphotypes. Fooden (1969) examined the specimens collected in museums and classified them into seven species by their well-defined characteristics. Because of the scarcity of specimens from remote and poorly accessible places, however, monkeys living in the borderlands between species have not been adequately examined. Groves (1980) found some possible hybrid monkeys in the borderlands between Macaca nigra and M. nigrescens, and between M. tonkeana and M. hecki. As a result, he classified M. nirescens as a subspecies of M. nigra and M. hecki as a subspecies of M. tonkeana. Since the borderland between M. ochreata and M. tonkeana is situated in the region furthest from the major towns in Sulawesi, no specimens from that area have been available and information on the monkeys and their distribution has been limited until now. We had the opportunity to survey monkeys in this inferred borderland between M. ochreata and M. tonkeana, namely in the most proximal part of the south-eastern peninsula of the island (Fooden, 1969). So, we have recognized the existence of some hybrid monkeys. We are, now, discussing the big problem of species concept in the field of biology.