Table 1.
Traditional morphologically-defined species groups of small-eared shrews (Cryptotis).
Fig 1.
Anterior aspects of left humeri of small-eared shrews, illustrating the range of interspecific variation.
(A) Cryptotis parvus (C. parvus group); (B) C. nigrescens (C. nigrescens group); (C) C. meridensis (C. thomasi group); (D) C. mexicanus (C. mexicanus group); (E) C. gracilis (C. mexicanus group); (F) C. lacertosus (C. goldmani group).
Table 2.
Morphological character matrix. Abbriviations of characters are given S1 Text.
Letters after species names refer to geographic populations: AV, Alta Verapaz, Guatemala; CH, Chiapas, Mexico; KS, Kansas; MD, Maryland; OAX, Oaxaca, Mexico; PAN, Panama; VA, Virginia; VC, Veracruz, Mexico; Z, Zacapa, Guatemala.
Fig 2.
Tree resulting from Bayesian phylogenetic analyses using combined genes.
Numbers at nodes indicate Bayesian posterior probabilities / ML Bootstrap values. Symbols: *, node strongly supported by both Bayesian (PP = 1.0) and ML analyses (BS = 100); –, node either not strongly supported (PP<0.5, BS <50) or not recovered. Letters on branches refer to humerus morphologies shown in Fig 1.
Fig 3.
Strict consensus trees resulting from MP analyses of morphological transition series.
(A) Unconstrained tree, transition series unordered. (B) Constrained tree, transition series unordered. (C) Unconstrained tree, transition series ordered. (D) Constrained tree, transition series ordered. Numbers at nodes are bootstrap values. Symbol: “C”, node constrained based on results of Bayesian analyses. Capital letters following species designations refer to geographical localities (see Table 2). Color refer to different evolutionary clades in our concatenated gene tree in Fig 1.