Description of the tadpole of Itapotihyla langsdorffii (Anura: Hylidae)

Zootaxa ◽  
2007 ◽  
Vol 1387 (1) ◽  
pp. 39 ◽  
Author(s):  
BRUNO V. S. PIMENTA ◽  
CLARISSA CANEDO

The tadpole of Itapotihyla langsdorffii is described and illustrated. Morphological data are compared with available information on tadpoles of casque-headed frogs occurring in the Atlantic Rainforest (genera Aparasphenodon and Trachycephalus), and also with Osteocephalus. The ontogenetic shift in tooth row formula and the great similarity on tadpole external morphology among these genera do not allow the use of the examined larval characters on generic diagnoses. However, we present some juvenile characters which may support the validity of Itapotihyla. The confrontation of the hypotheses concerning oral disk morphology and larval habitat types of the casque-headed tree frogs with the phylogeny of the Lophiohylini indicates that the ancestral larval habitat of this tribe was lentic and that the high number of tooth rows in this clade is not related to larval habitat.

Zootaxa ◽  
2007 ◽  
Vol 1387 (1) ◽  
pp. 39-46 ◽  
Author(s):  
BRUNO V.S. PIMENTA ◽  
CLARISSA CANEDO

The tadpole of Itapotihyla langsdorffii is described and illustrated. Morphological data are compared with available information on tadpoles of casque-headed frogs occurring in the Atlantic Rainforest (genera Aparasphenodon and Trachycephalus), and also with Osteocephalus. The ontogenetic shift in tooth row formula and the great similarity on tadpole external morphology among these genera do not allow the use of the examined larval characters on generic diagnoses. However, we present some juvenile characters which may support the validity of Itapotihyla. The confrontation of the hypotheses concerning oral disk morphology and larval habitat types of the casque-headed tree frogs with the phylogeny of the Lophiohylini indicates that the ancestral larval habitat of this tribe was lentic and that the high number of tooth rows in this clade is not related to larval habitat.


Zootaxa ◽  
2009 ◽  
Vol 2123 (1) ◽  
pp. 46-54 ◽  
Author(s):  
BRUNO V. S. PIMENTA ◽  
MARCELO F. NAPOLI ◽  
CÉLIO F. B. HADDAD

A new species of Aparasphenodon is described from patches of arboreal restinga within the Atlantic Forest Biome, in a region known as Baixo Sul in southern Bahia, northeastern Brazil. Aparasphenodon arapapa sp. nov. is promptly diagnosed from other Aparasphenodon mainly by having small size (male snout-vent length 57.4–58.1 mm), loreal region flattened and wide, and canthus rostralis rounded and poorly elevated. The wide and flattened snout resembles that found in Triprion and Diaglena, and possibly is a parallelism (homoplasy) related to the phragmotic behavior of casque-headed tree frogs to their microhabitat usage. The decision to allocate the new species in the genus Aparasphenodon is discussed in detail, as the single morphological synapomorphy of the genus, the presence of a prenasal bone, is insufficient to morphologically relate the new species to Aparasphenodon, Triprion, or Diaglena.


2016 ◽  
Vol 8 ◽  
pp. IJIS.S40071 ◽  
Author(s):  
Asma Mahmoud Hamza ◽  
El Amin El Rayah

Anopheles arabiensis Patton (Diptera: Culicidae) is considered the most efficient malaria vector in eastern Sudan. This study aims to characterize the breeding sites of An. arabiensis throughout the year in and around Kassala town, eastern Sudan. Diverse larval habitat types were visited and characterized based on the habitat type and chemical composition. Mosquito larvae were found in many diverse habitats. During the rainy season, rain pools and water bodies created by the seasonal Gash River serve as the main breeding sites. In the dry season, irrigation canals, seepage from water pipes, neglected wells, artificial containers, and man-made ditches serve as the main breeding sites. Breeding water showed a pH of 7.9 and a low concentration of the total dissolved salts. The results of this study may be considered in planning and implementing larval control programs in the area.


Zootaxa ◽  
2004 ◽  
Vol 464 (1) ◽  
pp. 1 ◽  
Author(s):  
ALINE AUGUSTO AGUIAR ◽  
VALÉRIA GALLO ◽  
JEAN L. VALENTIN

The two only species of Myliobatis Cuvier, that occur in the Brazilian coast, Myliobatis freminvillii Lesueur and Myliobatis goodei Garman, have great similarity in external morphology and possess few diagnostic characters that allow easy identification. In order to discriminate these two species, 34 specimens of M. freminvillii and 19 of M. goodei were measured and twenty morphometric characters were taken from each specimen. The residuals of a previous regression analysis performed on all morphometric variables relative to the disc width were used in the Size Independent Discriminant Analysis. All specimens were correctly allocated to their respective taxa. The analysis showed a clear separation of the specimens, forming two well-defined distinct groups. The fifth interbranchial distance (5ID) was the variable with the highest standardized discriminant coefficient value. The fifth interbranchial distance (5ID)-Internarial distance (IND) and fifth interbranchial distance (5ID)-Mouth width (MW) were the proportions that showed better differentiation between Myliobatis species.


2014 ◽  
Vol 2014 ◽  
pp. 1-30 ◽  
Author(s):  
Jolanta Brożek

The present study is a cladistic analysis of morphological characters focusing on the file of the mandible, the apices of the maxillae, the rupturing device on the maxillae, the internal structures of the mouthparts, and the external morphology of the labial segments as well as the distribution of labial sensilla in true water bugs (Hemiptera: Heteroptera, infraorder Nepomorpha). The study is based on data referring to sixty-two species representing all nepomorphan families (Heteroptera), together with one outgroup species representing the infraorders Gerromorpha (Mesoveliidae). The morphological data matrix consists of forty-eight characters. The present hypothesis supports the monophyly of the Nepomorpha and the monophyly of all families. The new modification in the systematic classification has been proposed: ((Nepidae + Belostomatidae), (Diaprepocoridae + Corixidae + Micronectidae), (Ochteridae + Gelastocoridae), Aphelocheiridae, Potamocoridae, Naucoridae, Notonectidae, and (Pleidae + Helotrephidae)).


Taxonomy ◽  
2021 ◽  
Vol 1 (4) ◽  
pp. 313-344
Author(s):  
Wilson J. E. M. Costa ◽  
Axel M. Katz

The Microcambevinae are a catfish subfamily endemic to the Brazilian Atlantic Forest, comprising rare species with interstitial habits. Microcambevines have been classified in two genera, Listrura and Microcambeva, but the relationships among included intrageneric lineages are still poorly understood. The objectives of this study are to conduct a phylogenetic analysis integrating morphological characters and a multigene dataset, and to propose a classification better reflecting morphological diversity and phylogenetic relationships. Phylogenetic analyses combining 57 morphological characters and a 2563 bp molecular dataset generated similar phylogenetic trees with high support values for most clades, including the two genera and some intrageneric groups. Six morphologically distinctive infrageneric lineages, three in Listrura and three in Microcambeva, are classified as subgenera, as well as two new species are described. The morphological diversity here recorded integrated to available information about habitat indicate high level of divergent specialisation among lineages. The analyses indicate a series of convergent morphological traits between Listrura and other teleosts sharing a fossorial lifestyle, as well as specialised traits independently occurring within Listrura lineages. Similarly, a great diversity of morphological traits occurs convergently in Microcambeva lineages and other teleosts sharing psammophilic habits. This study shows that combining molecular and morphological data yields well-supported phylogenies, making possible to unambiguously diagnose clades and to establish evolutionary hypothesis on morphological evolution.


2020 ◽  
Vol 46 (4) ◽  
pp. 631-637
Author(s):  
Abdhiel Bustamante-Navarrete

The distribution of the genus Neda Mulsant in Peru is expanded with the record of three species in the southeastern department of Cusco: Neda patula Erichson, 1847, Neda aequatoriana Mulsant, 1853 (first record for the department), and Neda boliviana Weise, 1898, which confirms its presence in the country. The collections were made in the Apurimac River Valley, in an altitudinal range between 2700-3100 m, where in the town of Choquequirao the three species of the genus are present sharing the habitat. The great similarity in the genital apparatus of the three species, and of the rest of the Andean species of the genus, forces to support the identifications in the external morphology, of wide variability in most of the Neda species and raises the need to study if they are valid species or variations of a single species.


Zootaxa ◽  
2017 ◽  
Vol 4300 (1) ◽  
pp. 142
Author(s):  
FERNANDO Z. VAZ-DE-MELLO ◽  
FERNANDO A. B. SILVA

Scybalocanthon batesi sp. nov., from Bahia, Brazil is described based on external morphology. Its diagnostic characters are provided and illustrated. An identification key and new distributional data to the following non-Amazonian species from South America are provided, S. nigriceps (Harold, 1868), S. zischkai Martínez, 1949, S. korasakiae Silva, 2011 and S. batesi sp. nov.. A lectotype is designated for S. nigriceps. 


Zootaxa ◽  
2019 ◽  
Vol 4711 (2) ◽  
pp. 393-400
Author(s):  
ROMAN V. YAKOVLEV ◽  
NAZAR A. SHAPOVAL ◽  
GALINA N. KUFTINA ◽  
ANASTASIA V. GAGARINA ◽  
ELIZAVETA YU. GORODILOVA

We used a combination of morphological data (genitalia structure) and a molecular marker (a 658bp fragment of the COI gene) to demonstrate that carpenter moth populations from central and southern Morocco, previously identified as Cossus cossus (Linnaeus, 1758) based on external morphology, represent a new species, described herein as C. romantsovi Yakovlev & Shapoval, sp. n. The genetic divergence of the new species with respect to other members of genus Cossus is significant and includes at least 23 fixed nucleotide substitutions in the 658 bp of the COI barcode. 


Zootaxa ◽  
2012 ◽  
Vol 3515 (1) ◽  
pp. 38 ◽  
Author(s):  
VLADIMIR PEŠIĆ ◽  
ANTONIO G. VALDECASAS ◽  
RICARDO GARCÍA-JIMENEZ

A new water mite, Torrenticola lukai n. sp. (Hydrachnidia, Torrenticolidae), is described from running waters in NorthernMontenegro. The new species is probably a sister species of Torrenticola lundbladi (Viets, 1930), a little documented spe-cies known from central Spain, which is redescribed based on recently collected new material. Morphological data hasbeen obtained with a bright field transmission microscopy and Laser Scanning Confocal Microscopy (LSCM), the latterallowing a realistic representation of the animals external morphology. Voucher specimens provided the DNA from whichbarcode sequences were obtained. External morphology and molecular data confirm that both species are clearly distin-guishable and diagnosticable. A key is given for the males of European species characterized by shoulder platelets fused to the dorsal plate.


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