NATURAL HISTORY · CATALOGUE RECORD
Western Threadsnake
Rena humilis Baird & Girard, 1853
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.
Open encyclopedia reference
Rena humilis, known commonly as the western blind snake, the western slender blind snake, and the western threadsnake, is a species of snake in the family Leptotyphlopidae. The species is native to the southwestern United States and northern Mexico. Six subspecies are recognized as being valid, including the nominate subspecies described here.
Wikipedia contributors, Rena humilis; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T07:40:24.852720+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Rena humilis Baird & Girard, 1853
- Name authority
- Baird & Girard, 1853
- Common name
- Western Threadsnake
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Squamata
- Family
- Leptotyphlopidae
- Genus
- Rena
- Extinction status
- Not supplied by this source
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
- classReptilia Laurenti, 1768
- orderSquamata Oppel, 1811
- suborderSerpentes Linnaeus, 1758
- infraorderScolecophidia Cope, 1864
- familyLeptotyphlopidae
- subfamilyEpictinae
- genusRena
- speciesRena humilis Baird & Girard, 1853
Close classified relatives
These entries share the source’s genus, Rena. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Michoacán Slender Blind SnakeRena bressoni (Taylor, 1939) | LeptotyphlopidaeChordata | Accepted speciesExtinction status not supplied |
| Giant Blind SnakeRena maxima (Loveridge, 1932) | LeptotyphlopidaeChordata | Accepted speciesExtinction status not supplied |
| Iverson's BlindsnakeRena iversoni (Smith, Breukelen, Auth & Chiszar, 1998) | LeptotyphlopidaeChordata | Accepted speciesExtinction status not supplied |
| Trans-Pecos Blind Snake/ThreadsnakeRena segrega (Klauber, 1939) | LeptotyphlopidaeChordata | Accepted speciesExtinction status not supplied |
| Southern Blind SnakeRena unguirostris (Boulenger, 1902) | LeptotyphlopidaeChordata | Accepted speciesExtinction status not supplied |
| Cerralvo Island ThreadsnakeRena boettgeri (Werner, 1899) | LeptotyphlopidaeChordata | Accepted speciesExtinction status not supplied |
| Duges’ ThreadsnakeRena dugesii (Bocourt, 1881) | LeptotyphlopidaeChordata | Accepted speciesExtinction status not supplied |
| New Mexico Blind Snake [dissecta]Rena dulcis Baird & Girard, 1853 | LeptotyphlopidaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Leptotyphlops humilis cahuilae Klauber, 1931 Klauber, 1931 | synonym |
| Leptotyphlops humilis levitoni Murphy, 1975 Murphy, 1975 | synonym |
| Catadon dugesii Bocourt, 1881 Bocourt, 1881 | synonym |
| Rena humilis cahuilae (Klauber, 1939) (Klauber, 1939) | ambiguous synonym |
| Leptotyphlops humilis utahensis Tanner, 1938 Tanner, 1938 | synonym |
| Catodon dugesii Bocourt, 1881 Bocourt, 1881 | synonym |
| Leptotyphlops humilis lindsayi Murphy, 1975 Murphy, 1975 | synonym |
| Leptotyphlops humilis slevini Klauber, 1931 Klauber, 1931 | 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://reptile-database.reptarium.cz/species?genus=Rena&species=humilis 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. A suitable sourced image remains to be added.
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:4RRM9. Classification follows source parent identifiers. English common names may vary by region.