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Sorex lyelli

From WhiskerWiki

Mount Lyell Shrew
(Sorex lyelli)
Range
Taxonomic classification
Order:Eulipotyphla
Suborder:Erinaceota
Family:Soricidae
Subfamily:Soricinae
Tribe:Soricini
Genus:Sorex
Subgenus:Otisorex
Species group:Sorex cinereus group
Binomial details
Sorex lyelli Merriam, 1902

Description

From Hall & Kelson (1959): "Upper parts brownish; underparts pale olive-gray or smoke-gray; tail bicolored."

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External measurements

Length measurements are in millimeters (mm) and weight measurements are in grams (g), unless stated otherwise. If available, the sample size (n=) is provided. If a range is not provided and n= is not given, then the listed measurement represents an average.

Part of range Reference Total length Tail length Hindfoot length Ear length Mass
California Jameson & Peeters (2004) 88–108 36–43 11–12 6
rangewide Wilson & Ruff (editors, 1999) 88–108 38–43 4–5


Skull

Sorex lyelli skull characters
units in mm
Skull
Condylobasal length:15.2–15.4 (Hall & Kelson, 1959)
Postmandibular canal:Absent
Dental
Upper unicuspids:5
Unicuspid notes:U3≥U4
Tines present:Yes

From Hall & Kelson (1959): "3rd unicuspid tooth equal to or larger than 4th; skull similar to that of S. cinereus but wider interorbitally and having more nearly flattened braincase."

Diagnosis from Jameson & Peeters (2004): "Inner side of lower jaw without postmandibular canal; inner (median) surface of unicuspid teeth with pigmented ridge; Third upper unicuspid larger than fourth."

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Taxonomy notes

From Woodman (2018): "Subgenus Otisorex; Sorex cinereus group. Within the Beringian clade of the Sorex cinereus group, S. lyelli is a member of a subclade that also includes S. preblei and two undescribed western North American species (Hope et al., 2012)."

References

Hall ER, Kelson KR. 1959. The Mammals of North America. New York (USA): The Ronald Press Company.

Jameson EW, Peeters HJ. 2004. Mammals of California (No. 66). Berkeley (CA, USA): University of California Press.

Wilson DE, Ruff S, editors. 1999. The Smithsonian Book of North American Mammals. Washington D.C. (USA): Smithsonian Institution Scholarly Press.

Woodman N. 2018. American Recent Eulipotyphla: nesophontids, solenodons, moles, and shrews in the New World. Washington D.C. (USA): Smithsonian Institution Scholarly Press. https://doi.org/10.5479/si.1943-6696.650.

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