. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. African and Asian Tatera 271 However, T. phillipsi is usually distinguishable from T. robusta on cranial size dif- ference. In all cranial characters the average measurements of T. phillipsi are smaller than those of T. robusta. This size difference is most apparent when adult sympatric specimens of the two species are examined, (Fig. 2). However, since there is an overlap in the ranges of the cranial measurements, it is sometimes impossible to determine with certai
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. African and Asian Tatera 271 However, T. phillipsi is usually distinguishable from T. robusta on cranial size dif- ference. In all cranial characters the average measurements of T. phillipsi are smaller than those of T. robusta. This size difference is most apparent when adult sympatric specimens of the two species are examined, (Fig. 2). However, since there is an overlap in the ranges of the cranial measurements, it is sometimes impossible to determine with certainty between the two species when individual specimens are col- lected from isolated localities. Variation: From the limited sample examined there would appear to be no signifi- cant sexual dimorphism. It was notable however that there was some geographical variation, with the specimens from Baringo, Kenya having relatively short tails and hindfeet but broad braincases. At present though all specimens are included in the nominate race. Synonyms include umbrosa and bodessana. Distribution: The distribution is shown in Fig. 5. The localities in Ethiopia and Kenya are apparently restricted to the Rift Valley and this may help to explain the rather linear Fig. 5: Distribution of Tatera phillipsi in comparison to Tatera robusta and the type locality of Tatera minúscula. Remarks: Most recent authors have included T. phillipsi in the synonymy of T. robusta. However, because of the size differences seen in sympatric specimens, it is here and in Bates (1985) promoted to specific status. The name phillipsi (De Winton, 1898) was selected as it is the earliest in the nomenclature for a small Tatera with a long rostrum. When the relevant specimens from Ethiopia and Kenya were compared to the holotype the majority of characters were seen to be shared. However, the holotype, which is a subadult, is noticeably broad in the braincase ( mm), broader than all but one other spe
Size: 1731px × 1443px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcoll, booksubjectbiology, booksubjectzoology
