Goldman´s diminutive woodrat (Nelsonia goldmani) is an endemic rodent that inhabits the temperate and humid environments of the central highlands of Mexico. This species is considered uncommon because of the scarce and dispersed information about specimens collected across the Faja Volcanica Transmexicana. Therefore, it is crucial to generate new information about the basic biology of N. goldmani, which so much is unknown thus far. We present the morphological description of the stomach and its content from one specimen of N. goldmani. We performed a longitudinal bisection and washing of stomach from one adult male collected at the Natural Park "Las Peñas" in the municipality of Jilotepec, Estado de México, Mexico. The macroscopic structures of the stomach were described by observation in a stereoscopic microscope. The stomach content was mounted on sliders and its components were identified and photographed with an optical microscope. According to the gastric glandular epithelium distribution, N. goldmani have a bilocular-discoglandular stomach with a characteristic fornix ventricularis slightly elongated horizontally. The stomach content was composed by several plant items: epidermal tissues of steam and leaves of angiosperms, pollen of gymnosperms, spores of ferns, fungi and animal tissue like mouth appendages and legs of insects. The stomach morphology was similar to the N. neotomodon and the peromyscine Neotomodon alstoni described previously, but the flattened and elongated fornix ventricularis found in N. goldmani was distinctive. Nonetheless, this structure can vary between individuals and mainly depends of the amount of food before dissection. The plant material found in the stomach was similar to that reported in other rodents that inhabit in similar environments to the highlands of central Mexico, such as Peromyscus aztecus, P. difficilis and Reithrodontomys fulvescens. La rata enana michoacana (Nelsonia goldmani) es un roedor endémico que habita en los ambientes templados y húmedos de la zona montañosa del centro de México. Esta especie es considerada como poco común debido a la escasa información disponible para los especímenes colectados en la Faja Volcánica Transmexicana. Por lo tanto, es indispensable generar información nueva de la biología básica de N. goldmani mucha de la cual se desconoce hasta el momento. Presentamos la descripción morfológica del estómago y su contenido en un ejemplar de N. goldmani. Se realizó un corte longitudinal y un lavado del estómago de un macho adulto colectado en el Parque Natural "Las Peñas" en el Municipio de Jilotepec, Estado de México, México. Se describieron las estructuras macroscópicas del estómago por observación en un microscopio estereoscópico. El contenido estomacal fue montado en laminillas y sus componentes fueron identificados y fotografiados en un microscopio óptico. Según la distribución del epitelio glandular gástrico, N. goldmani tienen un estómago bilocular-discoglandular con un característico fórnix ventricularis ligeramente alargado horizontalme...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.