A review of  the systematics of the genus Bradypodion (Sauria: Chamaeleonidae), with the description of two new genera.

Zootaxa 1363: 23–38. ISSN1175-5334 (online edition) 

Abstract:

The taxonomic history and composition of the genus Bradypodion as construed by Klaver & Böhme (1986) and new morphological and molecular data relevant to the taxonomy of the group is reviewed. The combined evidence strongly supports a formal rearrangement of the group into three distinct genera. Bradypodion, type species Chamaeleo pumilus Daudin 1802, is retained for the southern African species. Two new genera are erected to accommodate additional well-diagnosed clades within central and east African species previously referred to Bradypodion. Species of the “fischeri complex” are assigned to Kinyongia gen. nova, whilst the endemic Mulanje chameleon is placed in the monotypic genus Nadzikambia gen. nova.

tilbury-biblio

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The two-horned chamaeleons of East Africa.

Zoological Journal of the Linnean Society 152 (2): 367–391, https://doi.org/10.1111/j.1096-3642.2007.00332.x

Abstract:

There have been numerous attempts to resolve the taxonomy of the two-horned chamaeleons of East Africa. However, the high levels of intraspecific variation and reported sympatry of morphologically distinct taxa indicate that their current classification is unsatisfactory. Tissue samples were collected from specimens from most mountain massifs (excluding the Nguu) where two-horned chamaeleons are known to occur and were used to sequence partial 12S and 16S rRNA, as well as ND2 mtDNA genes. These specimens and further museum material were used to review morphological variation and to define discriminating characters for each taxon. Phylogenetic analyses of gene sequences show clear genetic divergence between allopatric populations, although two lineages occur in sympatry in the East Usambara Mountains, and is supported by divergent morphology. In light of these results a formal revision of the taxonomy of all East African two-horned chamaeleons is proposed and seven species are recognized (Kinyongia boehmei, K. fischeri, K. matschiei, K. multituberculata, K. tavetana, K. uluguruensis and K. vosseleri). These taxa form a monophyletic group except for K. uluguruensis, which seems to be more closely related to one-horned species. Most of these taxa have been previously described and subsequently reduced to synonyms. Two other previously described two-horned taxa are not recognized as valid: Chamaeleo tornieri is considered species inquiriendae, and C. fischeri werneri is placed in synonymy with K. multituberculata. A dichotomous key is provided for the identification of these taxa and some aspects of their conservation, ecology and evolutionary origins are also discussed.


mariaux-biblio

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Dienstag, 29 September 2020 16:24

ROELKE, C. E. & SMITH, E. N. (2010)

Herpetofauna, Parc National des Volcans, North Province, Republic of Rwanda.

Check List 6 (4): 525-531. Jan. 2010. DOI: 10.15560/6.4.525

Abstract:

Herein is presented a list of the reptiles and anurans from the Parc National des Volcans (PNV)(01°43’ S, 29°52’ W), an area in the west and north provinces of the Republic of Rwanda in the Albertine Rift region of Africa.  Fieldwork was conducted between two and six days per week from June through August 2007 and 2008. We also conducted literature searches of all historical expeditions within the park for species records. Seventeen species of reptiles and anurans are recorded from the PNV. Nine of the species were anurans, distributed in five families: Arthroleptidae (3), Bufonidae (1), Hyperoliidae (3), Phrynobatrachidae (1), and Pipidae (1). Eight species of reptiles were recorded from five families: Chamaeleonidae (1), Lacertidae (2), Scincidae (2), Colubridae (2), and Viperidae (1). Eight of the seventeen species found in the PNV are endemic to the Albertine Rift.

roelke-biblio

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Montag, 13 Juli 2020 09:01

FISCHER, J.G. (1885)

Herpetologische Bemerkungen.

Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten 2: 82-121.

Inhalt:

Es werden 19 Arten von Schlangen und Echsen beschrieben. Teilweise handelt es sich um Erstbeschreibungen.

fischer-biblio

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A new bush anole (Iguanidae, Polychrotinae, Polychrus) from the upper Marañon basin, Peru, with a redescription of Polychrus peruvianus (Noble, 1924) and additional information on Polychrus gutturosus Berthold, 1845.

ZooKeys 141 : 79–107, doi: 10.3897/zookeys.141.1678.

Abstract:

We herein describe a new colorful species of Polychrus with a conspicuous sexual dimorphism from the dry forest of the northern portion of Región de La Libertad, Peru. The new species differs from all other Polychrus species, in that this species has very small dorsal scales and thus a higher number of scales around midbody and in the middorsal line from behind the occipital scales to the level of the posterior edge of the thigh. Furthermore, we redescribe Polychrus peruvianus whose original description is short and lacks information on intraspecific variation and sexual dimorphism. Also, we add some information on intraspecific variation and ecology of Polychrus gutturosus. Finally, we synonymize Polychrus spurrelli Boulenger with Polychrus gutturosus.

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Mittwoch, 23 August 2017 07:27

WILMS, T., LÖHR, B & HULBERT, F. (2002)

Erstmalige Nachzucht der Oman-Dornschwanzagame - Uromastyx thomasi PARKER, 1930 - (Sauria: Agamidae: Leiolepidinae) mit Hinweisen zur intraspezifischen Variabilität und zur Lebensweise.

SALAMANDRA 38 (1): 45-62

Zusammenfassung:

Während einer herpetologischen Expedition in das Sultanat von Oman im November und
Dezember 1998 konnten Daten zur Ökologie von Uromastyx thomasi erhoben und einige Tiere
im Rahmen eines wissenschaftlich begleiteten Zuchtprojektes gefangen werden. In der
vorliegenden Arbeit werden die Haltungsbedingungen beschrieben, die zur erstmaligen
Nachzucht dieser Art in Menschenobhut führten. Neben den Reproduktionsdaten werden die
Kenntnisse zur Ökologie sowie zur Chorologie, intraspezifischen Variabilität und Taxonomie
von Uromastyx thomasi zusammengefasst.

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A new species of the Agama agama group (Squamata: Agamidae) from western Kenya, East Africa, with comments on Agama lionotus Boulenger, 1896.

Russian Journal of Herpetology 12 (2): 143-150

Abstract:

We describe a new species of Agama from westernmost Kenya. It is a member of the Agama agama species group characterized by small size (males up to 89 mm snout-vent length and 245 mm total length) and a unique male breeding coloration: flame- to scarlet-red head, neck and forelimbs, jet- or velvetly-black body, hindlimbs and tail root, and again a scarlet-red tail the terminal third of which is again black. Morphologically, the new species is similar to A. planiceps from southwestern Africa but has a much less depressed body. It also resembles typical A. agama from West and Central Africa, but is much smaller, less stoutly built and differently colored.

It is strikingly different from the two parapatric species of the Agama agama group, viz. A. caudospinosa and A. mwanzae, and differs also considerably from the sympatric representatives of the Agama agama complex itself: from the geographically neighboring A. a. elgonis and A. a. lionotus. We provide evidence that the latter taxon deserves full species rank and that the other East African subspecies of A. agama (i.e., elgonis, dodomae,  usambarae, ufipae) should be subordinated under a full species Agama lionotus.

(PDF Download available from: https://www.researchgate.net/publication/258867706_A_new_species_of_the_Agama_agama_group_Squamata_Agamidae_from_western_Kenya_East_Africa_with_comments_on_Agama_lionotus_Boulenger_1896 [accessed Aug 18, 2017].

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Dienstag, 15 August 2017 14:50

NECAS, P. (1999)

Chamäleons - Bunte Juwelen der Natur.

4. Auflage, gebunden. 366 Seiten, 430 Farbfotos, 5 SW-Fotos, 45 Zeichnungen, davon 3 in Farbe, 1 Karte

Edition Cimaira. ISBN 978-3-930612-02-4.

Verlagstext:

"Handbuch der modernen Chamäleonologie" - diesen Untertitel verdient das Buch von Petr Necas sicher nach wie vor zurecht, zumal die zweite Auflage gegenüber der ersten erheblich erweitert wurde. Selbstverständlich wurden dabei auch sämtliche Artmonographien überarbeitet und aktualisiert. Von den historischen Chamäleonbildern und einigen faszinierenden, bisher unveröffentlichten Fotos (z.T. von noch unbeschriebenen Arten) bis zu den tabellarischen Übersichten (Biologie und Systematik der heute bekannten Chamäleon-Arten) wurde das Buch umfassend ergänzt. Zudem konnten zwei sehr schöne Farb- sowie mehrere SW-Zeichnungen des bekannten Schweizer Graphikers R. Attinger als Illustrationen verwendet werden. Necas legt hiermit die 3. Auflage des derzeit umfassendsten Handbuches über Chamäleons vor, welches mit wissenschaftlichem Anspruch auch verständliche und praxisnahe Informationen zu allen Fragen der Haltung und Zucht gibt.

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Freitag, 04 August 2017 14:34

GRISMER, L. L. et al. (2012)

GRISMER, L. LEE,  PERRY L. WOOD, JR., EVAN S. H. QUAH, SHAHRUL ANUAR, MOHD. ABDUL MUIN, MONTRI SUMONTHA, NORHAYATI AHMAD, AARON M. BAUER, SANSAREEYA WANGKULANGKUL, JESSE L. GRISMER & OLIVIER S. G. PAUWELS (2012).

A phylogeny and taxonomy of the Thai-Malay Peninsula Bent-toed Geckos of the Cyrtodactylus pulchellus complex (Squamata: Gekkonidae): combined morphological and molecular analyses with descriptions of seven new species.

Zootaxa 3520: 1–55.

Abstract:

An integrative taxonomic analysis using color pattern, morphology and 1497 base pairs of the ND2 itochondrial gene and its five flanking tRNAs demonstrated that nine monophyletic species-level lineages occur within the Cyrtodactylus pulchellus complex (Cyrtodactylus pulchellus sensu strictu and C. macrotuberculatus) of the Thai-Malay Peninsula that have a sequence divergence between them ranging from 5.9–16.8%. Additionally, each lineage is discretely diagnosable from one another based on morphology and color pattern and most occur in specific geographic regions (upland areas or islands) that prevent or greatly restrict interpopulation gene  flow. Six of these lineages were masquerading under the nomen C. pulchellus and are described as the following: Cyrtodactylus astrum sp. nov. from  northwestern  Peninsular Malaysia and southwestern Thailand; C. langkawiensis sp. nov., at this point endemic to Langkawi Island, Malaysia; C. bintangrendah sp. nov., a lowland  species  surrounding  the  Banjaran  (=mountain  range)  Bintang  of  northwestern Peninsular Malaysia; C. bintangtinggi sp. nov., endemic to the upland regions of the Banjaran Bintang of northwestern Peninsular Malaysia; C. trilatofasciatus sp. nov., endemic to upland regions of Cameron Highlands in the central portion of the Banjaran Titiwangsa in Peninsular Malaysia; and C. stralotitiwangsaensis sp. nov. from the more southerly upland regions of the Banjaran Titiwangsa. An additional species, Cyrtodactylus lekaguli sp. nov. from Satun, Trang, Surat Thani, and Phang-nga provinces in southern Thailand, was identified on the basis of morphology and color pattern and is hypothesized to be part of a clade containing C. astrum sp. nov. and C. langkawiensis sp. nov.

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Review of Teiid Morphology with a Revised Taxonomy and Phylogeny of the Teiidae (Lepidosauria: Squamata)

Zootaxa 3459: 1–156

Abstract:

Despite advances within particular groups, systematics of the Teiidae has long been unsatisfactory, because few morphological characters have been described for this family. Consequently, most species have been assigned to the large, polyphyletic, and poorly defined genera Ameiva and Cnemidophorus. We describe 137 morphological characters and score them for most species of Neotropical Teiidae. Important, but previously undescribed, character suites include pupil shape; the frontal ridge; longitudinal division of the interparietal; the rostral groove; patterns of supraciliary fusion; the preauricular skin fold; the “toothy” first supralabial; modified apical granules; the pectoral sulcus; expansion of scales at the heel; tibiotarsal shields; scales between the digital lamellae along the postaxial edges of the toes; scale surface microstructure of macrohoneycomb, macroridges, or lamellae; distribution patterns and morphology of enticular scale organs; types of epidermal generation glands; and several hemipenial structures. We propose a new taxonomy of the Teiidae based on recovered evolutionary history and numerous morphological characters surveyed in this study. We recognize three subfamilies: Callopistinae new subfamily, Teiinae Estes et al., and Tupinambinae Estes et al. To resolve polyphyly of Ameiva and Cnemidophorus, we erect four new genera for various groups of Neotropical Teiidae: Ameivula new genus, Aurivela new genus, Contomastix new genus, and Medopheos new genus. We resurrect Holcosus Cope from the synonymy of Ameiva and Salvator Duméril and Bibron from the synonymy of Tupinambis. On the basis of shared derived characters, we propose new species groups of our redefined Ameiva and Cnemidophorus. We incorporate our new characters into a key to the genera and species groups of Teiidae. A phylogenetic hypothesis of Teiidae based on morphological characters differs substantially from hypotheses based on mitochondrial DNA. The phylogeny based on morphology is consistent with well-established biogeographic patterns of Neotropical vertebrates and explains extreme morphological divergence in such genera as Kentropyx and Aurivela.

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