Una nueva especie de Musaraña del género Cryptotis Pomel 1848 (Mammalia: Soricomorpha: Soricidae) de Ecuador y estatus taxonomico de Cryptotis equatoris Thomas (1912)

Abstract

Una nUeva especie de MUsaraña del género Cryptotis poMel 1848 (MaMMalia: soricoMorpha: soricidae) de ecUador y estatUs taxonoMico de Cryptotis equatoris thoMas (1912) pablo a. Moreno cárdenas 1,2 lUis albUja v.

A new species of small-eared shrew of the genus Cryptotis (Mammalia, Eulipotyphla, Soricidae) from the northernmost Peruvian Andes

“…Here, we review the taxonomic identity of Piura's specimens reported by Pacheco et al (2009) and describe a new species of small-eared shrew based on new specimens from Tabaconas Namballe National Sanctuary, Cajamarca, using a combined molecular and morphological approach. Vivar et al (1997), Moreno and Albuja (2014), and specimens observed in this study (see Appendix I for locality details).…”

“…nov.: breadth of shaft (Bs1); distance from deltoid process to capitulum (CD); width of distal end of humerus (DW); distance from greater tuberosity to teres tubercle (GT); length of humerus from head to capitulum and trochlea (L1); internal distance from medial epicondyle to teres tubercle (MT); and proximal width (PW). We performed descriptive statistics (mean, standard deviation, and observed range) to compare the external and cranial measurements of our specimen collections with values cited in other reports and literature (Barnett 1992;Vivar et al 1997;Moreno and Albuja 2014), and calculated multiple relative measurement indices (Woodman 2010(Woodman , 2011, including: length of tail TL/HBL x 100); breadth of interorbital area (IO/CBL x 100); length of rostrum (PL/CBL x 100); breadth of zygomatic plate (ZP/CBL x 100); breadth of zygomatic plate (ZP/PL x 100); length of unicuspid row (UTR/CBL x 100); breadth of palate (M2B/PL x 100); height of coronoid process (HCP/ML x 100); posterior length of mandible (AC3/ML x 100); and extension of articular condyle (AC3/HCP x 100). In order to reduce the influence of extreme values and size effect, we log-transformed all measurements and evaluated differences among species by principal component analysis (PCA) for cranium and humerus measurements aside.…”

Diversification and biogeographical history of Neotropical plethodontid salamanders

“…Like bolitoglossine salamanders, shrews have a northern origin; the two main genera found in the Neotropics, Sorex and Cryptotis , are distributed from North America south to Guatemala and the northern Andes of South America, respectively. They show much lower levels of diversity than the bolitoglossines (16 Mexican and Guatemalan species of Sorex , Carraway, ; 30 species of Cryptotis , Moreno Cárdenas & Albuja, ), however, and appear to be more recent arrivals in Mesoamerica; Sorex probably arrived in southern Mexico and Guatemala in the late Miocene (Esteva et al ., ). On an even more recent timescale, the rodent Ototylomys phyllotis arrived in Nuclear Central America around 3.4 Mya, prior to the Great American Biotic Interchange, from which it later spread (3.2–2.8 Mya).…”

American Recent Eulipotyphla: Nesophontids, Solenodons, Moles, and Shrews in the New World

“…Type Locality: Ecuador: "Sinche, Guabanda, 4000 m"; Hacienda de Sinche, northeast of Guaranda, Departamento de Bolívar. Distribution: Ecuador: western Andean cordillera from northern Carchí Province south to central Bolivar Province; elevational distribution: 1,800-4,000 m (Moreno- Cárdenas and Albuja, 2014). Populations of C. equatoris reported from northern Peru (Pacheco et al, 2009) have since been reidentified as C. montivagus (Zeballos et al, 2018).…”

“…Type Locality: Ecuador: "Bestion, Prov. del Azuay, Ecuador; altitude 10,000 ft." Distribution: Ecuador and Peru: Andean highlands of southern Chimborazo, Azuay, eastern Loja, and western Zamora-Chinchipe Provinces of Ecuador and Piura Province, northern Peru; elevational distribution: 2,500-3,910 m (Woodman and Péfaur, 2008;Moreno-Cárdenas and Albuja, 2014;Zeballos et al, 2018). Zeballos et al (2018) listed (but did not map) two localities for C. montivagus in Imbabura Province, northern Ecuador, which would represent a large northward extension of the geographical distribution of this species.…”