Sorex daphaenodon Thomas 1907

• Main Authors: Russell A. Mittermeier, Don E. Wilson
• Format: Other/Unknown Material
• Language: unknown
• Published: Lynx Edicions 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Soricomorpha; Soricidae; Sorex; Sorex daphaenodon; Krasnoyarsk Krai; Sakhalin; Siberia
• Online Access: https://zenodo.org/record/6869617; https://doi.org/10.5281/zenodo.6869617

21. Siberian Large-toothed Shrew Sorex daphaenodon French: Musaraigne a dents foncées / German: Sibirische GroRzahnspitzmaus / Spanish: Musarana de dientes grandes de Siberia Other common names: Large-toothed Siberian Shrew Taxonomy. Sorex daphaenodon Thomas, 1907, “ Dariné, 25 miles [= 40 km] N.W. of Korsakoft [= Korsakov], Saghalien [= Sakhalin Island],” Russia. Evidence from mtDNA and nDNA sequences classifies S. daphaenodon in the araneus group. Four subspecies recognized. Subspecies and Distribution. S.d.daphaenodonThomas,1907—RussianFarEast(KhabarovskKrai,AmurRegion,andSakhalinI). S.d.oriiKuroda,1933—ParamushirI(NKurilIs). S.d.sanguinidensG.M.Allen,1914—C&ESiberiaandChukchiandKamchatkapeninsulasStoNAmurRegion. S. d. scaloni Ognev, 1933 — W Siberia. Also present in N Mongolia, NE China, S Russian Far East (Primorsky Krai), and NE North Korea, but subspecies involved not known. Descriptive notes. Head-body 54-78 mm, tail 25-39 mm, hindfoot 10-13 mm; weight 6-10-3 g. Tail of the Siberian Large-toothed Shrew is relatively short and very rarely exceeds 50% of head-body length. Its base is bicolored, and it is dark on its distal part. Pelageis bicolored. Back is brown to dark brown in young individuals and black-brown to almost black in adults. Sides are slightly lighter than back. Belly is dark gray. Demarcation in color of sides and belly is always clear. Chromosomal complement has 2n = 26/27 in Krasnoyarsk Krai and 2n = 28/29 in vicinities of the Lake Baikal, Russian Far East, and Mongolia and FN = 46 everywhere. Trivalent of sex chromosomes consists of large metacentric X-chromosome, small acrocentric Y-chromosome, and medium-sized acrocentric Y-chromosome. There are 16-18 metacentric and 8-10 acrocentric autosomes. Habitat. The Siberian Large-toothed Shrew prefers well-moistened meadow habitats in floodplains. It almost never dominates shrew communities and is often low in abundance. Shrub floodplains are often inhabited, but forest habitats and subalpine meadows are avoided. It is not found in ...