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Panolopus diastatus (SCHWARTZ, 1964)

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Higher TaxaDiploglossidae, Diploglossa, Anguimorpha, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Northwestern Smooth-scaled Forest Lizard 
SynonymDiploglossus curtissi diastatus — SCHWARTZ 1964: 42
Celestus curtissi diastatus — SCHWARTZ & HENDERSON 1988: 98
Celestus curtissi diastatus — HEDGES et al. 2019
Panolopus curtissi diastatus — SCHOOLS & HEDGES 2021 (by implication)
Panolopus diastatus — SCHOOLS & HEDGES 2024: 157 
DistributionHaiti, Presqu'île du Nord-Ouest, south to Ça Soleil and Terre Neuve; Île de la Tortue.

Type locality: Bombardopolis, Nord-Ouest department, Haiti, (19.695, -73.341).  
Reproductionovoviviparous 
TypesHolotype: MCZ 63402, collected by Austin Stanley Rand and James Draper Lazell, Jr. on 22 July 1960. 
DiagnosisDiagnosis (diastatus): A subspecies of D. curtissi characterized by large size (males to 86 m snout-vent length, females to 80 mm), high number of ventral scales between mental and vent, moderate number of midbody scales, moderate number of fourth toe lamellae, dark metallic dorsum with lateral band having a series of white dots and posterior indications of vertical lateral bars (Fig. 15), maximum dorsal pattern consisting of scattered rather dark dots, especially posteriorly and on upper surface of tail, and chin and throat with black flecks or streaks in adults. (Schwartz 1964)


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CommentDistribution: for a map see Schools & Hedges 2024: 134 (Fig. 49)

Similar species: Panolopus curtissi and P. diastatus cannot be morphologically separated based on standard characters, however, they can be separated by the nasal length by the nasal height (1.21–1.46 [n=5] versus 1.47–1.73 [n=10]). (Schools & Hedges 2024)

Synonymy: from SCHOOLS & HEDGES 2024. 
EtymologyApparently named after Greek diastatos = divided, presumably in allusion to the hiatus between the southernmost specimen of diastatus and the northmost record of c. curtissi which was about 125 km when the subspecies was described. 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Grant, C. 1951. The specific characters of the Celesti, with description of a new species of Celestus (Sauria: Anguidae). Copeia 1951 (1): 67-69. - get paper here
  • Greer, A.E. 1967. Notes on the mode of reproduction in anguid lizards. Herpetologica 23 (2): 94-99 - get paper here
  • 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
  • Ober, L.D. 1970. Reproduction in the Anguid Lizard, Diploglossus curtissi aporus Schwartz Herpetologica 26 (2): 275. - get paper here
  • Powell, Robert; José A. Ottenwalder and Sixto J. Incháustegui 1999. The Hispaniolan Herpetofauna: Diversity, Endemism, and Historical Perpectives, with Comments on Navassa Island. In Crother, Caribbean Amphibians and Reptiles, Academic Press, pp. 93-168 - get paper here
  • SCHOOLS, M., & HEDGES, S. B. 2024. A new forest lizard fauna from Caribbean islands (Squamata, Diploglossidae, Celestinae). Zootaxa 5554(1): 1-306 - get paper here
  • SCHOOLS, MOLLY & S. BLAIR HEDGES 2021. Phylogenetics, classification, and biogeography of the Neotropical forest lizards (Squamata, Diploglossidae). Zootaxa 4974 (2): 201–257 - get paper here
  • Schwartz, A. & Henderson, R.W. 1991. Amphibians and Reptiles of the West Indies. University of Florida Press, Gainesville, 720 pp.
  • Schwartz,A. 1964. Diploglossus costatus Cope (Sauria: Anguidae) and its relatives in Hispaniola. Reading Public Museum and Art Gallery Sci. Publ. 13: 1-57
  • Thomas, R. and S. B. Hedges. 1989. A new Celestus (Sauria: Anguidae) from the Chaine de Ia Selle of Haiti. Copeia 1989 (4): 886-891 - get paper here
 
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