Mammalian Diversity And Matses Ethnomammalogy In Amazonian Peru Part 2: Xenarthra, Carnivora, Perissodactyla, Artiodactyla, And Sirenia Author Voss, Robert S. Author Fleck, David W. text Bulletin of the American Museum of Natural History 2017 2017-10-27 2017 417 1 1 http://www.bioone.org/doi/10.1206/00030090-417.1.1 journal article 10.1206/00030090-417.1.1 0003-0090 5407771 Tayassuidae Two tayassuid species, the collared peccary ( Pecari tajacu ) and the white-lipped peccary ( Tayassu pecari ), are definitely known to occur in the Yavarí-Ucayali interfluve. As currently recognized, both species occur throughout Amazonia, and no other tayassuids are expected in our region. Although a third Amazonian tayassuid, Pecari maximus , was recently described from the Madeira-Tapajós interfluve (Roosmalen et al., 2007) and was subsequently alleged to also occur TABLE 17 Measurements (mm) and Weights (kg) of Adult Specimens of Pecari tajacu from the Yavarí-Ucayali Interfluve

FMNH 88799	FMNH 88800	FMNH 88802	FMNH 88803	FMNH 89176	FMNH 89177	MUSM 11182	MUSM 11183
Sex	female	female	female	male	male	male	male	male
Head-and-body length	905	905	990	1007	955	945	887	905
Length of tail	23	25	25	25	20	32	40	40
Hind foot	210	210	215	210	214	210	206	201
Ear	83	84	88	85	88	85	89	88
Weight	—	—	—	—	—	—	27.5	29.0
Condylobasal length	201.8	206.1	215.1	223.5	208.7	210.2	205.8	221.0
Condyloincisive length	204.1	208.5	217.0	—	212.0	211.1	205.6	220.9
Length of diastema	17.0	16.2	20.5	21.3	19.9	15.4	17.5	21.4
Rostral breadth at diastema	33.1	32.7	34.0	34.9	34.4	36.8	35.7	30.0
Least interorbital breadth	51.6	51.3	57.0	61.7	57.7	54.5	56.8	57.0
Zygomatic breadth	98.6	104.7	105.1	116.0	115.6	104.7	110.4	113.9
Cheektooth row (P2–M3)	67.5	70.4	62.7	70.6	68.8	69.8	67.9	66.2
Breadth of M2	12.7	14.0	13.0	13.9	14.5	14.1	14.3	13.5

in Bolivia (near the Peruvian border; Moravec and Böhme, 2009), molecular sequence data suggest that P . maximus is not genetically distinct from the collared species ( Gongora et al., 2011 ). The generic taxonomy of peccaries has been historically unstable. Husson (1978) , for example, referred the white-lipped species to Dicotyles Cuvier, 1816 , and the collared species to Tayassu Fischer, 1814 , whereas previous authors (e.g., Cabrera, 1961 ) often referred both species to Tayassu . The current use of Pecari Reichenbach, 1835 , for the collared species ( Grubb, 2005 ) follows Miller (1912), whereas current usage of Tayassu for the white-lipped species follows Hershkovitz (1963) . Although it is now widely agreed that the white-lipped and collared species should be placed in separate genera, and despite the fact that the binomina used below are now well established in the literature, it is only too likely that some future reinterpretation of the technical rules governing type species of genusgroup names ( ICZN, 1999 : Chapter 15) will suggest different combinations.