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Descripción de un neotipo para Anolis meridionalis Boettger, 1885 (Sauria: Polychrotidae)
Motte,Martha; Cacciali,Pier;
Cuadernos de herpetolog？-a , 2009,
Abstract: anolis is one of the largest genus of lizards with more than 380 species distributed in central and south america, which often difficult their identification. particularly anolis meridionalis was described upon one specimen from paraguay. this species is widely distributed in brazil, paraguay and bolivia. nevertheless, because the original description is poor in diagnostic characters and the holotype is currently lost, sometimes is difficult to know the identity of specimens of related species. for that reason in this work is designed and described a neotype for anolis meridionalis with the hope that this helps to solve some taxonomic problems in the southernmost species of the genus.
Nuevos registros de Hemidactylus mabouia (Sauria: Gekkonidae) en Paraguay
Cacciali, Pier,Motte, Martha
Cuadernos de Herpetología , 2009,
Abstract: Para este trabajo, se revisaron las colecciones depositadas en el Museo Nacional de Historia Natural del Paraguay. Además, los datos se complementan con trabajos y observaciones de campo de los autores. Adicionalmente se revisó la literatura disponible sobre la herpetofauna del Paraguay en la cual se haga mención a la especie, con el objetivo de conocer la primera cita para la República del Paraguay.
Descripción de un neotipo para Anolis meridionalis Boettger, 1885 (Sauria: Polychrotidae)
Motte, Martha,Cacciali, Pier
Cuadernos de Herpetología , 2009,
Abstract: Anolis es uno de los géneros de lagartijas más grandes con más de 380 especies presentes en el Centro y Sur de América, lo cual dificulta muchas veces su identificación. Particularmente Anolis meridionalis fue descrito en base a un ejemplar procedente de Paraguay. Esta especie se encuentra ampliamente distribuida en Brasil, Paraguay y Bolivia. Sin embargo, debido a que la descripción original es pobre en caracteres diagnósticos y a que el holotipo se encuentra perdido, es difícil en ocasiones conocer la identidad de ejemplares de especies afines. Es por eso que en este trabajo se designa y describe un neotipo para Anolis meridionalis con la esperanza de que ayude a resolver los problemas taxonómicos de las especies más australes del género. Anolis is one of the largest genus of lizards with more than 380 species distributed in Central and South America, which often difficult their identification. Particularly Anolis meridionalis was described upon one specimen from Paraguay. This species is widely distributed in Brazil, Paraguay and Bolivia. Nevertheless, because the original description is poor in diagnostic characters and the holotype is currently lost, sometimes is difficult to know the identity of specimens of related species. For that reason in this work is designed and described a neotype for Anolis meridionalis with the hope that this helps to solve some taxonomic problems in the southernmost species of the genus.
Variación intraespecífica en Phalotris matogrossensis y P. tricolor: una evaluación de sus caracteres diagnósticos (Squamata: Colubridae)
Cacciali Sosa, Pier,Motte, Martha
Cuadernos de Herpetología , 2007,
Abstract: Phalotris matogrossensis es una especie del grupo tricolor, descrita recientemente en base a ejemplares procedentes de Brasil y Paraguay. Se diferencia claramente de P. cuyanus y P. mertensi por la coloración y algunos detalles de la lepidosis corporal, y según la bibliografía de P. tricolor por la mayor longitud del anillo cervical blanco respecto al negro en P. matogrossensis, siendo el negro mucho mayor en P. tricolor. Los resultados del presente trabajo demuestran que este carácter no debe ser tomado tan estrictamente como diagnóstico ya que se encontraron grandes variaciones en los ejemplares revisados. Las diferencias encontradas aquí que mejor sirven para diferenciar entre ambas especies son: 1) la coloración de la mandíbula, oscura o al menos manchada en P. tricolor y siempre inmaculada en P. matogrossensis; 2) la longitud del anillo negro respecto a la proporción total del cuerpo, que en P. tricolor resulta mayor que en P. matogrossensis sin solapamiento de valores; y 3) el color dorsal, ya que P. tricolor en ocasiones presenta manchas o líneas interrumpidas en el dorso, en contraste con la coloración totalmente inmaculada del dorso de P. matogrossensis. Además se dan algunos datos acerca de las afinidades biogeográficas de ambas especies en Paraguay. Phalotris matogrossensis is a species belonging to the tricolor group that was recently described from specimens collected in Brazil and Paraguay. This species can be easily distinguished from P. cuyanus and P. mertensi by its coloration and some traits of the body pholidosis and, after bibliography, from P. tricolor by the reduced black and longer white cervical ring. The results of this work shows that this character should not to be treated as diagnostic as great variation was found among the specimens examined. Characters that better differentiate between the two species: 1) mandible coloration, dark or at least spotted in P. tricolor but always clear in P. matogrossensis; 2) the length of the black ring with respect to the total body length, which is greater in P. tricolor and does not overlap with results for P. matogrossensis; and 3) the dorsal color, P. tricolor sometimes showing spots or interrupted stripes on the dorsum, in contrast to the uniform coloration of P. matogrossensis. Some data regarding the biogeographic affinities of both species in Paraguay are also provided.
Categorización del estado de conservación de los Anfibios y Reptiles de Paraguay
Motte, Martha,Nú？ez, Karina,Cacciali, Pier,Brusquetti, Francisco
Cuadernos de Herpetología , 2009,
Abstract: Se presentan los resultados de la categorización de la herpetofauna de la República del Paraguay, utilizando las categorías propuestas por la Unión Internacional para la Conservación de la Naturaleza (UICN). El 10,9% de las 82 especies de anfibios analizados y el 14,9% de las 161 especies de reptiles, se encuentra en alguna de las categorías de riesgo de extinción propuestas por UICN. Esto indica que es necesario encarar acciones de conservación a corto y largo plazo para evitar y/o disminuir la pérdida de espécies. We present an arrangement of the herpetofauna from Paraguay according to the categories of threat proposed by the International Union for Conservation of Nature (IUCN). The 10.9% of the 82 species of amphibians and 14.9% of the 161 species of reptiles analyzed here were in some category of threat of extinction. This means that both short and long term conservation actions are needed to avoid loss of species.
Categorización del estado de conservación de los Anfibios y Reptiles de Paraguay
Motte,Martha; Nú？ez,Karina; Cacciali,Pier; Brusquetti,Francisco; Scott,Norman; Aquino,Aída Luz;
Cuadernos de herpetolog？-a , 2009,
Abstract: we present an arrangement of the herpetofauna from paraguay according to the categories of threat proposed by the international union for conservation of nature (iucn). the 10.9% of the 82 species of amphibians and 14.9% of the 161 species of reptiles analyzed here were in some category of threat of extinction. this means that both short and long term conservation actions are needed to avoid loss of species.
The genera Boiruna and Clelia (serpentes: pseudoboini) in Paraguay and Argentina
Scott Jr., Norman J.;Giraudo, Alejandro R.;Scrocchi, Gustavo;Aquino, Aida Luz;Cacciali, Pier;Motte, Martha;
Papéis Avulsos de Zoologia (S？o Paulo) , 2006, DOI: 10.1590/S0031-10492006000900001
Abstract: snakes of the pseudoboine genera clelia, which is probably polyphyletic, and boiruna are distributed from southern argentina, southern brazil, and uruguay northwards into central méxico. six members occur in paraguay and argentina: b. maculata, clelia bicolor, c. clelia, c. plumbea, c. quimi, and c. rustica. historically, there has been taxonomic confusion among the larger species (b. maculata, c. clelia, c. plumbea, and c. rustica) and between the small species (c. bicolor and c. quimi). all of the species except c. rustica have distinct ontogenetic color changes. species can be distinguished on the bases of size, color, hemipenial spines, and loreal, supralabial, and ventral scale counts. much of the morphological evolutionary differentiation in boiruna and clelia seems to have taken place in the snout region, as evidenced by the differing proportions of the scales of the loreal region. boiruna maculata has the widest ecological amplitude. it is broadly distributed in most vegetation types north of the 38th parallel in central argentina, being absent only from the deltaic sediments of buenos aires province, argentina and the broad valleys and rolling hills of eastern paraguay. clelia bicolor is most common in the paraguay and paraná river valleys, with a few records from the andean foothills in northern argentina. clelia clelia is distributed along the río paraguay and the lower paraná, and is also found throughout much of eastern paraguay. clelia plumbea is apparently parapatric with c. clelia along the río paraná in southeastern paraguay and misiones province, argentina. the ranges of c. quimi to the east and c. bicolor in the west about in this same region without apparent overlap. there are no vouchered records of clelia rustica from paraguay. in argentina, it is a species of temperate climates; north of the 30th parallel, it occurs in the andean foothills and the wet forests of misiones province. southwards, it is widely distributed to beyond the 40th paralle
Taxonomic analysis of Paraguayan samples of Homonota fasciata Duméril & Bibron (1836) with the revalidation of Homonota horrida Burmeister (1861) (Reptilia: Squamata: Phyllodactylidae) and the description of a new species
Cintia D. Medina,Gunther K？hler,Luciano J. Avila,Mariana Morando,Martha Motte,Pier Cacciali
- , 2017, DOI: 10.7717/peerj.3523
Abstract: Homonota is a Neotropical genus of nocturnal lizards characterized by the following combination of characters: absence of femoral pores, infradigital lamellae not dilated, claws without sheath, inferior lamellae laterally not denticulate, and presence of a ceratobranchial groove. Currently the genus is composed of 10 species assembled in three groups: two groups with four species, and the fasciata group with only two species. Here, we analyzed genetic and morphologic data of samples of Homonota fasciata from Paraguay; according to Maximum Likelihood and Bayesian inference analyses, the Paraguay population represents an undescribed species. Additionally, morphological analysis of the holotype of H. fasciata (MNHN 6756) shows that it is morphologically different from the banded, large-scaled Homonota commonly referred to as “H. fasciata”. Given the inconsistency between morphological characters of the name-bearing type of H. fasciata and the species commonly referred to as H. fasciata, we consider them as different taxa. Thus, H. fasciata is a species inquirenda which needs further studies, and we resurrect the name H. horrida for the banded, large-scaled Homonota. The undescribed species from Paraguay is similar to H. horrida, but can be differentiated by the high position of the auditory meatus relative to the mouth commissure (vs. low position in H. horrida); and less developed tubercles on the sides of the head, including a narrow area between the orbit and the auditory meatus covered with small granular scales with or without few tubercles (vs. several big tubercles on the sides of the head even in the area between the orbit and the auditory meatus). The new species is distributed in the Dry Chaco in South America. With the formal description of this species, the actual diversity of the genus Homonota is increased to 12 species. Furthermore, we infer phylogenetic relationships for 11 of the 12 described species of the genus, based on 11 molecular markers (two mitochondrial and nine nuclear genes), with concatenated and species tree approaches
Chromatic variation in populations of Xenodon merremi (Serpentes: Dipsadidae) in Paraguay
Pier Cacciali
- , 2010, DOI: http://dx.doi.org/10.13128/Acta_Herpetol-8539
Abstract: Xenodon merremi is a polychromatic species distributed in South America. Among its wide range of color patterns, the most common pattern resembles a pitviper of the genus Bothrops. In this work is recorded the different patterns found in Paraguayan populations of X. merremi. Four patterns can be observed: marked pattern, slightly marked pattern, smooth, and banded pattern. The marked pattern is the most common pattern (mimetic with pitvipers), and all juveniles bear this coloration. Only adults show variation in their coloration
Tantilla melanocephala (Linnaeus, 1758) (Serpientes: Colubridae) en Paraguay
Cacciali, Pier,Brusquetti, Francisco
Cuadernos de Herpetología , 2005,
Abstract: Anteriormente se han citado para Paraguay dos ejemplares procedentes de las cercanías de Asunción (Boulenger, 1894, 1896; Peracca, 1895), sin indicar especimenes de referencia. Tanto Boulenger (1896) como Peracca (op. cit.) incluyen algunos conteos de escamas de los ejemplares. Posteriormente, la especie fue citada en reiteradas ocasiones como perteneciente a la herpetofauna paraguaya (Bertoni, 1914; Schouten, 1931; Gatti, 1955; Talbot, 1979), sin precisar datos de localidad o de colecta, mientras que Bertoni (1939) la cita en "Chaco paraguayo", sin otra especificación.
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