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Letheobia akagerae DEHLING, HINKEL, ENSIKAT, BABILON & FISCHER, 2018

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Higher TaxaTyphlopidae (Afrotyphlopinae), Typhlopoidea, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Akagera Gracile Blind Snake 
SynonymLetheobia akagerae DEHLING, HINKEL, ENSIKAT, BABILON & FISCHER 2018 
DistributionRwanda

Type locality: Rwanda, Akagera National Park, Ruzizi Tented Lodge (1°54'24.90"S, 30°42'58.42"E; approx. 1290 m)  
Reproductionoviparous (manual imputation, fide Zimin et al. 2022) 
TypesHolotype: ZFMK 100862, adult; collected on 8 July 2012 by construction workers, preserved by Kenny Babilon. 
DiagnosisDiagnosis: The new species is assignable to the genus Letheobia for showing the following characters that in combination are diagnostic (Pyron & Wallach, 2014): Dorsal and lateral head profiles rounded; rostral broad; T-0; lateral snout profile rounded; body form gracile; eye invisible; coloration pink (pigmentless); body with 22 longitudinal scale rows without reduction; tail short with 13 subcaudals and apical spine; inferior nasal suture in contact with first supralabial; preocular in contact with second and third supralabials; subocular present. It extends the known total length/midbody width ratio in the genus (42–129; Pyron & Wallach, 2014) to 131 and the known maximum number of middorsal scale rows for any species in the genus (311–737; Broadley & Wallach, 2007; Pyron & Wallach, 2014) to 834.


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CommentHabitat: Soil. The holotype of Letheobia akagerae was found when soil was dug during construction work. The type locality is in gallery forest near the shores of Lake Ihema at around 1290 m a.s.l. Three additional specimens were observed and photographed in tree savanna on a nearby hilltop in the headquarters area of the national park (1°52'29.56"S, 30°42'55.49"E; 1°52'37.32"S, 30°42'50.42"E; 01°52'39.05"S, 30°42'52.80"E; approx. 1600m a.s.l.) slithering on the ground after heavy rainfalls during the day. 
EtymologyThe specific epithet refers to the type locality, the Akagera National Park in eastern Rwanda. 
References
  • DEHLING, J. MAXIMILIAN; HARALD H. HINKEL, HANS-JÜRGEN ENSIKAT, KENNY BABILON, EBERHARD FISCHER 2018. A new blind snake of the genus Letheobia (Serpentes: Typhlopidae) from Rwanda with redescriptions of L. gracilis (Sternfeld, 1910) and L. graueri (Sternfeld, 1912) and the introduction of a non-invasive preparation procedure for scanning electron mic Zootaxa 4378 (4): 480-490 - get paper here
  • Trape, J.-F. 2023. Guide des serpents d’Afrique occidentale, centrale et d’Afrique du Nord. IRD Éditions, Marseille, 896 pp.
  • 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
  • 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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