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: 027_up4_protocone_shape.jpg

Morphobank media number
M738414

Taxonomic name
Suncus megalura Jentink, 1888

Specimen
Suncus megalura Jentink, 1888 (MNHN-ZM:1992-386)

Specimen notes
Suncus megalura (Crocidurinae); Recent fauna; Catalogue number: MNHN-ZM 1992-386; Field number: ?; Incoming number: ?; Sex: ?; Age: subadultus; Locality: Guinea [Yale, Mt.? Nimba]; Collector: M. Lamotte; Date: November, 1956.

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character

Media loaded by
Leonid Voyta

Media notes
Character 27. P4 (crown): complex protocone shape: cone-like (0); V-shaped (1); U-shaped (2); inapplicable (-). Remarks: Unordered. Outgroup Sorex species and two ingroup spepcies, C. jouvenetae, C. obscurior display cone-like protocone, which elevated above the preprotoctista level; the postprotocrista undeveloped (Character 027: A). Outgroup Neomys species and six ingroup species, M. okuensis, S. etruscus, C. olivieri, C. yaldeni, C. lasiura, C. phanluongi bear V-shaped protocone (Character 027: B). Five ingroup species, S. johnstoni, C. serezkyensis, C. zarudnyi, C. sapaensis, C. zaitsevi display U-shaped protocone, which composed ridge-like pre- and posprotocrista and the short metaloph; the metaloph slightly curved inward from the postprotocrista and so forms U-shaped ridge. The U-shaped protocone mostly expressed in S. johnstoni (Character 027: C). This character is inapplicable for S. megalura, S. murinus, C. leucodon, D. pulchellum due to weakly developed protocone [character 26, st. 0]. For details see S8.

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