NATURAL HISTORY · CATALOGUE RECORD
Sumichrast's Vesper Rat
Nyctomys sumichrasti (Saussure, 1860)
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
en:Sumichrast's vesper rat (Nyctomys sumichrasti)
Unknown authorUnknown author, lithography by J. Smit · Public domain · Image sourceProvider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
Sumichrast's vesper rat (Nyctomys sumichrasti) is a rodent of the family Cricetidae found from southern Mexico to Panama. It is named for François Sumichrast, the collector of the first specimen, and its closest relative is probably Hatt's vesper rat, a similar, but slightly smaller, species from the Yucatán Peninsula.
Wikipedia contributors, Sumichrast's vesper rat; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T10:12:47.778809+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Nyctomys sumichrasti (Saussure, 1860)
- Name authority
- (Saussure, 1860)
- Common name
- Sumichrast's Vesper Rat
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Rodentia
- Family
- Cricetidae
- Genus
- Nyctomys
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classMammalia Linnaeus, 1758
- subclassTheria Parker & Haswell, 1897
- infraclassEutheria Gill, 1872
- orderRodentia Bowdich, 1821
- suborderMyomorpha Brandt, 1855
- superfamilyMuroidea Illiger, 1811
- familyCricetidae Fischer, 1817
- subfamilyTylomyinae Reig, 1984
- genusNyctomys Saussure, 1860
- speciesNyctomys sumichrasti (Saussure, 1860)
Close classified relatives
No other member of this genus is present in the selected snapshot.
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Nyctomys sumichrasti colimensis Laurie, 1953 Laurie, 1953 | synonym |
| Nyctomys sumichrasti costaricensis Goldman, 1937 Goldman, 1937 | synonym |
| Hesperomys salvini Tomes, 1862 Tomes, 1862 | synonym |
| Nyctomys nitellinus Bangs, 1902 Bangs, 1902 | synonym |
| Sitomys decolorus True, 1894 True, 1894 | synonym |
| Nyctomys sumichrasti florencei Goldman, 1937 Goldman, 1937 | synonym |
| Nyctomys sumichrasti pallidulus Goldman, 1937 Goldman, 1937 | synonym |
| Nyctomys sumichrasti venustulus Goldman, 1916 Goldman, 1916 | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=633185 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:485W5. Classification follows source parent identifiers. English common names may vary by region.