Ferrari S F, Lopes M A, Krause E A
Departamento de Zoologia, Museu Palaense Emilio Goeldi, Belém-PA, Brazil.
Am J Phys Anthropol. 1993 Apr;90(4):487-93. doi: 10.1002/ajpa.1330900408.
Quantitative data on the gut proportions of the recently-described black-headed marmoset (Callithrix nigriceps) from western Brazilian Amazonian are presented. Like other marmosets, C. nigriceps exhibits a relatively large caecum and colon associated with adaptations for gummivory. The degree of gut specialisation recorded is greater than that for any other platyrrhine for which quantitative data are available. Gum was found in the stomach contents of all four individuals examined, although the fruit/seeds of as many as seven different plant taxa were also encountered, in addition to insects of six different orders. Gut proportions of two Saguinus labiatus from the same region were typical of the more frugivorous tamarins, and stomach contents included only fruit and insects. Relative gut proportions of both species were closely similar to those of congeners from the same region.
本文给出了关于最近在巴西西部亚马逊地区发现的黑头狨（Callithrix nigriceps）肠道比例的定量数据。和其他狨类一样，黑头狨的盲肠和结肠相对较大，这与它们适应食胶习性有关。记录到的肠道特化程度高于其他任何有定量数据的阔鼻猴。在所检查的所有四只个体的胃内容物中都发现了树胶，此外还发现了多达七种不同植物类群的果实/种子以及六种不同目昆虫。来自同一地区的两只白唇狨（Saguinus labiatus）的肠道比例是更喜食果实的绢毛猴的典型特征，胃内容物仅包括果实和昆虫。两个物种的相对肠道比例与来自同一地区的同属物种非常相似。
