Hybomys eisentrauti Van der Straeten &amp; Hutterer 1986
Creators: name: Denys, Christiane
name: Missoup, Alain Didier
name: Nicolas, Violaine
name: Fülling, Olaf
name: Delapré, Arnaud
name: Bilong, Charles Felix Bilong
name: Taylor, Peter John J.
name: Hutterer, Rainer
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Hybomys
Hybomys eisentrauti

description: <i>Hybomys eisentrauti</i> Van der Straeten &amp; Hutterer, 1986 <i>Hybomys eisentrauti</i> Van der Straeten &amp; Hutterer, 1986:36. <i>Hybomys badius</i> – Musser &amp; Carleton 2005: 1330, 1331. TYPE LOCALITY. — Cameroon, Mt Lefo. MATERIAL EXAMINED. — MNHN: 2011-927, 2011-929 to 2011-941, 2013-42, 2013-43. ZFMK: Holotype Mt Lefo 74.377, paratype Mt lefo 74.374, Mt Lefo 74.376, Mt Oku 69.175, 91.226, 91.225. ZFMK: Owl pellets from Lake Oku Cave: 91.92. <i>Morphological characters</i> This rodent has a similar size to <i>Lamottemys</i> but can be distinguished easily from its skull and molars. It is characterized by a dark pelage with a dorsal black stripe that is poorly visible compared to <i>H. badius</i>. Specimens of Mt Oku have a more woolly, dense pelage than those from Mt Lefo. Compared to <i>H. badius, H. eisentrauti</i> specimens share very similar size. Only <i>H. basilii</i> is noticeably larger, as indicated previously by Van der Straeten (1985) (Table 2). The skulls of the new Oku specimens are smaller and have a more rounded braincase, and a poorly marked interorbital constriction with no crests developing, compared to the Mt Lefo holotype (Fig. 6). The <i>H. eisentrauti</i> molars display well-aligned cusps and small stephanodont crests on the cusps t3 and t1 of M1/, and on the prelobe of M/1 (Fig. 7). They have similar size to the Lefo type serie, and are slightly smaller compared to other CVL <i>Hybomys</i> species. We did not find distinct characters in cusp disposition and shape between all CVL specimens and <i>H. univittatus</i> representatives from Gabon. The new Mt Oku specimens have similar skull size and general shape compared to the type serie of <i>H</i>. <i>eisentrauti</i> from Mt Lefo. Some slight morphological differences are however apparent, such as the presence of lightly marked fronto-parietal crests and a more constricted interorbital region in Mt Oku specimens. The skull of <i>H. eisentrauti</i> is smaller for nearly all its dimensions (Table 5). The total length of the skull of <i>H. basilii</i> is greater than that of <i>H. eisentrauti,</i> but no significant differences can be observed in other measurements (Missoup 2010) Many species may be found in sympatry on mountains of the CVL. However, these morphological and size differences observed in CVL <i>Hybomys</i> specimens could just be the result of an adaptation to high altitude of the typical <i>H. univittatus</i> species (Missoup 2010). Pending molecular analyses, we considered here <i>H. eisentrauti</i> as a valid species endemic to Bamenda Highlands (Mt Lefo and Mt Oku), following Van der Straeten &amp; Hutterer (1986).
description: Published as part of <i>Denys, Christiane, Missoup, Alain Didier, Nicolas, Violaine, Fülling, Olaf, Delapré, Arnaud, Bilong, Charles Felix Bilong, Taylor, Peter John J. &amp; Hutterer, Rainer, 2014, African highlands as mammal diversity hotspots: new records of Lamottemys okuensis Petter, 1986 (Rodentia: Muridae) and other endemic rodents from Mt Oku, Cameroon, pp. 647-690 in Zoosystema 36 (3)</i> on pages 660-661, DOI: 10.5252/z2014n3a6, http://zenodo.org/record/4539596
description: {"references": ["VAN DER STRAETEN E. &amp; HUTTERER R. 1986. - Hybomys eisentrauti, une nouvelle espece de Muridae du Cameroun (Mammalia, Rodentia). Mammalia 50 (1): 35 - 42.", "MUSSER G. G. &amp; CARLETON M. D. 2005. - Superfamily Muroidea, in WILSON D. E. &amp; REEDER D. M. (eds), Mammal Species of the World. A Taxonomic and Geographic Reference. 3 rd edition. The Johns Hopkins University Press, Baltimore: 894 - 1531.", "VAN DER STRAETEN E. 1985. - Note sur Hybomys basilii Eisentraut 1965. Bonner Zoologische Beitrage 36: 1 - 8.", "MISSOUP A. D. 2010. - Systematique et biogeographie des rongeurs des forets de la ligne volcanique du Cameroun (Afrique ouest centrale). These doctorat Univ. Yaounde 1 - MNHN (unpublished)."]}