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Letheobia weidholzi (WALLACH & GEMEL, 2018)

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Higher TaxaTyphlopidae (Afrotyphlopinae), Typhlopoidea, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Weidholz’s Pink Blindsnake 
SynonymTyphlops weidholzi WEIDHOLZ 1941 (nom. nud.)
Letheobia weidholzi WALLACH & GEMEL 2018
Letheobia logonensis TRAPE 2019
Letheobia weildholzi — TRAPE et al. 2020 (in error) 
DistributionCameroon (Faro), Nigeria, Chad

Type locality: Poli, Département de Faro, région du Nord, Cameroun (8° 27’ 16.4” N, 13° 15’ 33.7” e, elevation 525 m),

logonensis: Chad; Type locality: “Baïbokoum (07°44’N / 15°40’E) au Tchad”  
Reproductionoviparous (manual imputation, fide Zimin et al. 2022) 
TypesHolotype: NMW 23492, collected by Alfred Weidholz, between 1938–1939.
Holotype: MNHN-RA 2018.0015, formerly IRD 2285.N, collected 29 May 2015 by a famer of a local village who gave it to the author [logonensis] 
DiagnosisDiagnosis: Letheobia weidholzi can be separated from all other members of the genus by the following combination of characters: dorsal and lateral head profiles tapered or pointed with keratinous keel on rostral, lateral head shields obliquely oriented to the vertical, and more than 650 total middorsals. Additional characters distinguishing it from other Letheobia with pointed snouts are: inferior nasal suture in contact with sl 2, length/width ratio greater than 95, and absence of an apical spine. As to the assignment to the genus Letheobia, see Discussion (Wallach & Gemel 2018). 
CommentSynonymy: Otto Wettstein, curator at the Natural History Museum in Vienna, left a hand-written description of this species around 1940 but never formally published it. Weidholz 1941 mentioned the name in a book, also without details, hence creating a nomen nudum. Trape et al. 2020 synonymized Letheobia logonensis with L. weidholzi.

Distribution: Apparently only known from 3 specimens in 3 countries (Trape et al. 2020).

Habitat: grassland with scrub trees around 500 m elevation. it is found within the humid Sudan-Guinea savanna biome or the tropical Wet-Dry savanna (Aw) climate of Köppern (1884). 
EtymologyNamed after Alfred Weidholz, a Viennese private banker, who collected the type on one of several trips to Africa.

Letheobia logonensis was named after the Logone River which is close to the type locality. 
References
  • Gemel, R.; G. Gassner & S. Schweiger 2019. Katalog der Typen der Herpetologischen Sammlung des Naturhistorischen Museums Wien – 2018. Ann. Naturhist. Mus. Wien, B 121: 33–248
  • Trape, Jean-François; Israël Demba Kodindo, Ali Sougoudi Djiddi, Joseph Mad-Toïngué & Clément Hinzoumbé Kerah 2020. The snakes of Chad: results of a field survey and annotated country-wide checklist. Bonn zoological Bulletin 69 (2): 367–393 - get paper here
  • Trape, Jean-François 2019. Scolecophidiens (Squamata: Ophidia) nouveaux d’Afrique centrale. Bull. Soc. Herp. France 169: 27-44 - get paper here
  • Wallach, V. & Gemel, R. 2018. Typhlops weidholzi n. inedit., a new species of Letheobia from the republic of Cameroon, and a synopsis of the genus (Squamata: Serpentes: Scolecophidia: Typhlopidae). Herpetozoa 31 (1/2): 27 - 46 - get paper here
  • Weidholz, A. 1941. Bei den Bergheiden in Nordkamerun. Wien, Ostmarken–Verlag, 240 pp.
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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