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Leiocephalus partitus PREGILL, 1981

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Higher TaxaLeiocephalidae, Iguania, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Guanica Curlytail 
SynonymLeiocephalus partitus PREGILL 1981: 39
Leiocephalus partitus — PREGILL 1992: 48
Leiocephalus partidus — HEDGES et al. 2019 (in error) 
DistributionPuerto Rico

Type locality: Guanica Bat Cave, Reserva Forestal Guanica, 6 km E Barrio de Guanica, Municipio de Guayanilla, Puerto Rico.  
Reproductionoviparous (manual imputation, fide Zimin et al. 2022) 
TypesHolotype: USNM (VP) 259203. Right dentary. 
Diagnosis 
CommentConservation: Extinct - only known from fossils, estimated to date from the Holocene (0-11,000 years ago) or the Pleistocene (2.5 million to 11,000 years ago).

Characterization. Large size (estimated SVL 125-130 mm); dentary with a well-developed intramandibular septum; tooth crowns narrow and weakly flared; Meckel's groove closed and fused except from below the seventh tooth to the anterior tip of the jaw. 
EtymologyNamed after Latin partitus = divided, in reference to the intramandibular septum. 
References
  • Hedges SB, Powell R, Henderson RW, Hanson S, and Murphy JC 2019. Definition of the Caribbean Islands biogeographic region, with checklist and recommendations for standardized common names of amphibians and reptiles. Caribbean Herpetology 67: 1–53
  • Pregill G 1981. Late Pleistocene herpetofaunas from Puerto Rico. Misc. Publ. Univ. Kans. Mus. Nat. Hist. 71: 1-72 - get paper here
  • Pregill,G.K. 1992. Systematics of the West Indian Lizard Genus Leiocephalus (Squamata: Iguania: Tropiduridae). Misc. Publ. Univ. Kans. Mus. Nat. Hist. 84: 1-69 - 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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