Project 3885: L. L. Voyta, A. V. Abramov, L. A. Lavrenchenko, V. Nicolas, E. A. Petrova, L. Y. Kryuchkova. 2021. Dental polymorphisms in Crocidura (Soricomorpha: Soricidae) and evolutionary diversification of crocidurine shrew dentition. Zoological Journal of the Linnean Society. Early View:null.

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Original filename: 006_ua1_posterolingual_cusplet.jpg

Morphobank media number
M738393

Taxonomic name
Sylvisorex johnstoni (Dobson, 1888)

Specimen
Sylvisorex johnstoni (Dobson, 1888) (MNHN-ZM:1991-096)

Specimen notes
Sylvisorex johnstoni (Crocidurinae); Recent fauna; Catalogue number: MNHN-ZM 1991-096; Field number: 1301; Incoming number: 4221-91; Sex: female; Age: subadultus; Locality: Congo, Madingou [Mehengue]; Collector: R.J. Dowsett; Date: 14.11.1990.

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character

Media loaded by
Leonid Voyta

Media notes
Character 6. A1 (crown): posterolingual cusplet: absent (0); present (1). Remarks: Unordered. In most extant genera, including outgroup and ingroup species (except M. okuensis and S. johnstoni) a posterolingual cusplet of A1 is absent (Character 6: A,B). Dannelid (1998) discussed the posterolingual cusplet in soricid genera and interpreted it as a crown sturcture that produced by 'the posterior part of the lingual cingulum' (ibid.: 162). The author mentions a 'longitudinal blade' in Myosorex that formed by anterioposterior expanding of the cusplet. This cusplet of A1 with anterior blade-like expanding in M. okuensis we score as a well-developed posterolingual cusplet (Character 6: C); relatively weak developed cusplet in S. johnstoni we score as a weak cusplet (Character 6: D). For details see S8.

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