Larval morphology in four species of Hylarana from Vietnam and Thailand with comments on the taxonomy of H. nigrovittata sensu latu (Anura: Ranidae)

Zootaxa ◽  
2009 ◽  
Vol 2051 (1) ◽  
pp. 1-25 ◽  
Author(s):  
ANNA GAWOR ◽  
RALF HENDRIX ◽  
MIGUEL VENCES ◽  
WOLFGANG BÖHME ◽  
THOMAS ZIEGLER
Keyword(s):  
National Park ◽  
Body Shape ◽  
Developmental Stages ◽  
Molecular Data ◽  
Species Level ◽  
Larval Morphology ◽  
Chiang Mai ◽  
Central Vietnam ◽  
Wide Gap ◽  
Morphological Differences

We describe the tadpole morphology of four species of Hylarana based on larval specimens identified by DNA barcoding. Of these, the larvae of Hylarana attigua and H. maosonensis, two species recently recorded from Phong Nha – Ke Bang National Park, Quang Binh Province, central Vietnam, had not been previously described; in addition, descriptions of the tadpoles of syntopic H. guentheri and H. nigrovitatta are provided as well. The tadpoles of these four species are generalized exotrophic lentic-benthic forms of Orton’s Type 4 with a depressed body shape, dorsolaterally positioned eyes and a moderate height of tail fins. In contrast to the silver-whitish H. guentheri the preserved tadpoles of H. attigua, H. maosonensis and H. nigrovittata are greenish-brown to greyish. The generalized oral discs exhibit a wide gap of marginal papillae on the upper labium and elongated papillae on the lower labium. In general, the keratodont row formulae of the Hylarana species studied herein is 2(2)/3(1) (sometimes 1/3(1) in H. guentheri). Differences between species mainly concern body shape, size in different developmental stages as well as number and shape of oral papillae. H. nigrovittata larvae from near Chiang Mai in northern Thailand mainly differ from Vietnamese specimens in the number and shape of oral papillae. In concert with adult morphological differences and molecular divergences by molecular data this indicates species-level distinctness of the Vietnamese versus the northern Thai populations.

Larval morphology in four species of Madagascan frogs ofthe subgenus Brygoomantis (Mantellidae: Mantidactylus)

Zootaxa ◽  
2007 ◽  
Vol 1616 (1) ◽  
pp. 49-59 ◽  
Author(s):  
ANGELIKA KNOLL ◽  
JÖRN KÖHLER ◽  
FRANK GLAW ◽  
MEIKE TESCHKE ◽  
MIGUEL VENCES
Keyword(s):  
Developmental Stage ◽  
Dna Barcoding ◽  
Body Shape ◽  
Developmental Stages ◽  
Larval Morphology ◽  
Undescribed Species ◽  
Wide Gap

We describe the tadpole morphology of four species of frogs classified in the endemic Madagascan subgenus Brygoomantis of the genus Mantidactylus, based on larval specimens identified by DNA barcoding: Mantidactylus betsileanus and M. biporus, and two so far undescribed species that are here named M. sp. aff. betsileanus "very slow calls" and "Vohidrazana" referring to their bioacoustic features or collecting locality. The tadpoles of these four species are brown to yellowish benthic forms with a depressed body shape, dorsally directed eyes and relatively low fins. The oral discs are generalised and all species exhibit a wide gap in dorsal papillae. There is variation among different developmental stages with regard to the keratodont row formulae. In Mantidactylus betsileanus, younger stages (25 and 26) exhibit the formula 1:3+3/1+1:2, whereas it is 1:4+4/1+1:2 in older stages (36 and 38). In M. sp. aff. betsileanus "very slow calls", keratodont row formulae vary within one developmental stage (25–26) from 1:3+3/3 to 1:4+4/3, whereas it seems to be constantly 1:4+4/3 in all examined developmental stages of M. sp. aff. betsileanus "Vohidrazana". In general, the larvae of the different Brygoomantis species studied are morphologically similar to each other. Differences between species mainly concern colouration, shape of body and the number of keratodonts per millimetre, which is approximately 38 in M. betsileanus, 50 in M. biporus, and 60 in the two undescribed species.

A new color pattern of the Bungarus candidus complex (Squamata: Elapidae) from Vietnam based on morphological and molecular data

Zootaxa ◽  
2017 ◽  
Vol 4268 (4) ◽  
pp. 563
Author(s):  
SANG NGOC NGUYEN ◽  
VU DANG HOANG NGUYEN ◽  
THANG QUOC NGUYEN ◽  
NGAN THANH THI LE ◽  
LUAN THANH NGUYEN ◽  
...  
Keyword(s):  
National Park ◽  
Molecular Data ◽  
Color Pattern ◽  
Black And White ◽  
Central Vietnam ◽  
Morphological And Molecular Data

Kraits with black and white bands from Nui Chua National Park, central Vietnam are morphologically similar to the Burmese Krait, Bungarus magnimaculatus, however, analysis of molecular data finds them to be nested within the B. candidus complex.

Increased sampling blurs morphological and molecular species limits: revision of the Hispaniolan endemic spider genus Tainonia (Araneae:Pholcidae)

2009 ◽  
Vol 23 (3) ◽  
pp. 281 ◽  
Author(s):  
Bernhard A. Huber ◽  
Jonas J. Astrin
Keyword(s):  
Dominican Republic ◽  
National Park ◽  
Type Species ◽  
Molecular Data ◽  
Species Status ◽  
Species Limits ◽  
Wide Range ◽  
Two New Species ◽  
Morphological Differences ◽  
Range Of Variation

The genus Tainonia comprises unusually large pholcids endemic to Hispaniola. Previously, only the type species had been formally described, represented in collections by no more than 12 adult specimens. However, the existence of more species has been hypothesised based on a few further individuals. The present paper is based on a sample of 205 mostly newly collected adult specimens from 18 localities in the Dominican Republic and four localities in Haiti. The increased sampling reveals a wide range of variation, including intermediate levels of divergence that often blur rather than clarify species limits. Therefore, although not all taxonomic questions can be settled here, morphological (including morphometric) and molecular (mitochondrial 16S, CO1) data strongly support two new species: one in La Visite National Park, Haiti (T. visite, sp. nov.) and another on Samaná Peninsula and parts of the eastern Dominican Republic (T. samana, sp. nov.). Species limits among the other populations are more difficult to support or reject. Specimens from Bayahibe (eastern Dominican Republic) and from La Ciénaga (Cordillera Central) are each assigned species status on the basis of consistent morphological differences (T. bayahibe, sp. nov., T. cienaga, sp. nov.), but no molecular data are available due to lack of specimens. All other specimens are provisionally assigned to a possibly paraphyletic T. serripes (Simon). There is considerable morphological variation within this widely distributed group of populations but this variation is rather continuous and molecular distances fill most of the range between morphologically unambiguous conspecifics and unambiguous heterospecifics.

scholarly journals Description of larval morphology and phylogenetic relationships of Heterotemna tenuicornis (Silphidae)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Karolina Mahlerová ◽  
Pavel Jakubec ◽  
Martin Novák ◽  
Jan Růžička
Keyword(s):  
Phylogenetic Analysis ◽  
Endemic Species ◽  
Developmental Stages ◽  
Molecular Data ◽  
Mitochondrial Genes ◽  
Morphological Description ◽  
Larval Morphology ◽  
Adult Specimen ◽  
New Knowledge ◽  
Cross Reference

AbstractProviding clear and detailed morphological descriptions of endemic species in limited areas enables new knowledge of their biology and ecology to be obtained through citizen science. This information can be further used for their protection. Our study presents the first morphological description of the larvae of all three instars of Heterotemna tenuicornis (Brullé, 1836), an endemic species of the Canary Islands that, together with H. britoi García & Pérez, 1996 and H. figurata (Brullé, 1839), belongs to the peculiar genus Heterotemna Wollaston, 1864. Furthermore, we present the first sequences of two mitochondrial genes (COI, 16S) obtained from larval specimens, and cross reference them with sequences from an adult specimen. Phylogenetic analysis of molecular data placed the genus Heterotemna within the genus Silpha Linnaeus, 1758, suggesting paraphyly of Silpha. In our study, we underline the importance of using a combination of morphological description and molecular data, that can be used for barcoding developmental stages which could not otherwise be definitely associated.

Notes on the molecular taxonomy of the Proclossiana eunomia complex (Lepidoptera, Nymphalidae: Argynnini): analysis of DNA barcodes

2018 ◽  
Vol 8 (1) ◽  
pp. 222-232 ◽  
Author(s):  
R. V. Yakovlev ◽  
N. A. Shapoval ◽  
G. N. Kuftina ◽  
A. V. Kulak ◽  
S. V. Kovalev
Keyword(s):  
Body Size ◽  
Molecular Taxonomy ◽  
Taxonomic Status ◽  
Molecular Data ◽  
Coi Gene ◽  
Wing Pattern ◽  
Molecular Approach ◽  
Dna Barcodes ◽  
Morphological Differences ◽  
Proclossiana Eunomia

The Proclossiana eunomia (Esper, 1799) complex is currently composed of the several subspecies distributed throughout Palaearсtic region and North America. Despite the fact that some of the taxa have differences in wing pattern and body size, previous assumptions on taxonomy not supported by molecular data. Therefore, the identity of certain populations of this complex has remained unclear and the taxonomic status of several recently described taxa is debated. Here, we provide insights into systematics of some Palaearctic members of this group using molecular approach, based on the analysis of the barcoding fragment of the COI gene taking into account known morphological differences.

scholarly journals Neelipleona and Symphypleona (Collembola) from a Sampling in the Mesovoid Shallow Substratum of the Sierra de Guadarrama National Park (Madrid and Segovia, Spain): Taxonomy and Biogeography

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 266
Author(s):  
Enrique Baquero ◽  
Rafael Jordana ◽  
Vicente M. Ortuño
Keyword(s):  
National Park ◽  
Ecological Niche ◽  
Mediterranean Area ◽  
Abundant Species ◽  
Species Level ◽  
Surface Sampling ◽  
Mesovoid Shallow Substratum ◽  
The Mediterranean

Megalothorax minimus (Neelidae) and Sphaeridia pumilis (Sminthurididae) had already been identified in surface sampling from Sierra de Guadarrama. In Europe, Sminthurinus gisini (Katiannidae) seems to be associated with environments at specific altitudes, and has little representation in this sampling. Pygmarrhopalites custodum Baquero and Jordana sp. nov. (Arrhopalitidae) coexists with two previously identified surface occurring species of the same family (P. elegans and Arrhopalites caecus). However, P. custodum is more abundant, indicating that it occupies an ecological niche tending to troglophile in the mesovoid shallow substratum (MSS). Moreover, it is also more abundant in the MSS of higher altitude corresponding to the bioclimatic zones cryo-oro-Mediterranean and oro-Mediterranean supra forest. Allacma cryptica Baquero and Jordana sp. nov. (Sminthuridae), is another species that had not been previously detected on the surface in the study area. A. cryptica is an addition to a genus which has eight described species. Gisinurus malatestai (Sminthuridae) appears well represented in the MSS, being a species present very occasionally in the Mediterranean area. Two species of the genera Sminthurides (Sminthurididae) and Fasciosminthurus (Bourletiellidae) have been found, but they could not have been identified to the species level. Finally, a few specimens of Dicyrtomina minuta (Dicyrtomidae), an abundant species on the surface, have been captured.

scholarly journals First instar larvae of endemic Australian Miltogramminae (Diptera: Sarcophagidae)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Krzysztof Szpila ◽  
Kinga Walczak ◽  
Nikolas P. Johnston ◽  
Thomas Pape ◽  
James F. Wallman
Keyword(s):  
Laser Scanning ◽  
Instar Larva ◽  
Laser Scanning Microscopy ◽  
Confocal Laser ◽  
Maxillary Palpus ◽  
Larval Morphology ◽  
First Instar ◽  
Morphological Differences ◽  
Thoracic And Abdominal ◽  
First Time

AbstractThe first instar larva of a species of the Australian endemic genus Aenigmetopia Malloch is described for the first time, along with the first instar larvae of three other Australian species representing the genera Amobia Robineau-Desvoidy and Protomiltogramma Townsend. Larval morphology was analysed using a combination of light microscopy, confocal laser scanning microscopy and scanning electron microscopy. The following morphological structures are documented: pseudocephalon, antennal complex, maxillary palpus, facial mask, modifications of thoracic and abdominal segments, anal region, spiracular field, posterior spiracles and details of the cephaloskeleton. Substantial morphological differences are observed between the three genera, most notably in the labrum and mouthhooks of the cephaloskeleton, sensory organs of the pseudocephalon, spinulation, sculpture of the integument and form of the spiracular field. The first instar larval morphology of Aenigmetopia amissa Johnston, Wallman, Szpila & Pape corroborates the close phylogenetic affinity of Aenigmetopia Malloch with Metopia Meigen, inferred from recent molecular analysis. The larval morphology of Amobia auriceps (Baranov), Protomiltogramma cincta Townsend and Protomiltogramma plebeia Malloch is mostly congruent with the morphology of Palaearctic representatives of both genera.

Description of a new species of Auriculostoma (Digenea: Allocreadiidae) from Characidium heirmostigmata (Characiformes: Crenuchidae) from Argentina, using morphological and molecular data

2021 ◽  
Vol 95 ◽  
Author(s):  
M.M. Montes ◽  
J. Barneche ◽  
Y. Croci ◽  
D. Balcazar ◽  
A. Almirón ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
National Park ◽  
Molecular Data ◽  
Rrna Gene ◽  
28S Rrna ◽  
The Family ◽  
Parasitological Survey ◽  
Morphological And Molecular Data ◽  
A New Species

Abstract During a parasitological survey of fishes at Iguazu National Park, Argentina, specimens belonging to the allocreadiid genus Auriculostoma were collected from the intestine of Characidium heirmostigmata. The erection of the new species is based on a unique combination of morphological traits as well as on phylogenetic analysis. Auriculostoma guacurarii n. sp. resembles four congeneric species – Auriculostoma diagonale, Auriculostoma platense, Auriculostoma tica and Auriculostoma totonacapanensis – in having smooth and oblique testes, but can be distinguished by a combination of several morphological features, hosts association and geographic distribution. Morphologically, the new species can be distinguished from both A. diagonale and A. platense by the egg size (bigger in the first and smaller in the last); from A. tica by a shorter body length, the genital pore position and the extension of the caeca; and from A. totonacapanensis by the size of the oral and ventral sucker and the post-testicular space. Additionally, one specimen of Auriculostoma cf. stenopteri from the characid Charax stenopterus (Characiformes) from La Plata River, Argentina, was sampled and the partial 28S rRNA gene was sequenced. The phylogenetic analysis revealed that A. guacurarii n. sp. clustered with A. tica and these two as sister taxa to A. cf. stenopteri. The new species described herein is the tenth species in the genus and the first one parasitizing a member of the family Crenuchidae.

Taxonomy of Ctenomys (Rodentia: Ctenomyidae) in northwestern Patagonia, Argentina: the occurrence of the “mendocinus” lineage

Mammalia ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mauro N. Tammone ◽  
Ulyses F.J. Pardiñas
Keyword(s):  
South America ◽  
Molecular Data ◽  
Species Level ◽  
Subterranean Rodents ◽  
Mammalian Fauna ◽  
Southern South America ◽  
Monte Desert ◽  
Desert Shrub ◽  
Northern Patagonia ◽  
Northern Portion

Abstract Subterranean rodents Ctenomys are iconic representatives of the mammalian fauna from southern South America. Based on molecular data, eight lineages have been identified within the genus, although species-level identifications and relationships are still debated. Until now, the “magellanicus” clade has been the only lineage mentioned from arid, extra-Andean portions of Patagonia. Here, we report the presence of a Ctenomys population from northern Patagonia that is unambiguously associated with the Central Argentinean “mendocinus” lineage. Most of the 160,000 km2 comprising the northern portion of Patagonia – an area consisting primarily of Monte Desert shrub-land – are inhabited by Ctenomys populations of unknown taxonomy.

The first zoeal stage of the yellow land crab Johngarthia lagostoma (Milne Edwards, 1837) (Decapoda: Brachyura: Gecarcinidae)

Zootaxa ◽  
2021 ◽  
Vol 4990 (1) ◽  
pp. 192-200
Author(s):  
SIMONE MARIA DE ALBUQUERQUE LIRA ◽  
CYNTHIA DAYANNE MELLO DE LIMA ◽  
IGOR DE ÁVILA TEIXEIRA ◽  
RALF SCHWAMBORN
Keyword(s):  
Phylogenetic Relationships ◽  
Zoeal Stage ◽  
Dorsal Seta ◽  
Tropical Atlantic ◽  
Larval Morphology ◽  
Land Crab ◽  
The Family ◽  
Fernando De Noronha ◽  
Morphological Differences

The objective of this paper is to describe and illustrate the first zoeal stage of the largest land crab of the Tropical Atlantic, Johngarthia lagostoma (Milne Edwards, 1837) (Brachyura: Gecarcinidae). A larval description of J. lagostoma was previously not available. Larvae were obtained from ovigerous females on Rocas Atoll and Fernando de Noronha Archipelago, Brazil. Twenty larvae were randomly chosen to be dissected and described in detail, while 40 others (20 larvae from each island) were measured only. The published description of the congener J. planatus (Stimpson, 1860) larvae was used for a comparison of larval morphology. Some morphological differences between the first zoeal stage of these two species were: The absence or presence of a simple shorter seta on antennule, number of the minute terminal spines on the antenna, setation of the coxal endite of the maxilla, exopod unsegmented of the first and second maxilliped, and a single mid-dorsal seta on first pleonite. These results and differences observed between these species can assist in studies on phylogenetic relationships within the Family Gecarcinidae MacLeay, 1838, as well as in the identification of the larvae of J. Lagostoma in plankton samples from the tropical Atlantic.  

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