scholarly journals Out of Bound: A New Threatened Harlequin Toad (Bufonidae, Atelopus) from the Outer Borders of the Guiana Shield in Central Amazonia Described through Integrative Taxonomy

Diversity ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 310
Author(s):  
Rafael F. Jorge ◽  
Miquéias Ferrão ◽  
Albertina P. Lima
Keyword(s):  
New Species ◽  
Ventral Surface ◽  
Dominant Frequency ◽  
Integrative Taxonomy ◽  
Advertisement Call ◽  
Guiana Shield ◽  
Central Amazonia ◽  
Length Range ◽  
Skin Smooth ◽  
A New Species

We used integrative taxonomy to describe a new species of Atelopus from the lowlands of Central Amazonia in the region of Manaus, Amazonas, Brazil. The new species is geographically isolated from the southernmost species of Atelopus of the Guiana Shield. Atelopus manauensis species nova (sp. nov.) is characterized by the combination of the following characteristics: male snout-vent length range (SVL = 19.1–26.4 mm; n = 11); dorsal and lateral skin smooth; ventral surface entirely white or white with cream-colored gular region; fingers and toes lacking subarticular tubercles and fringes. The advertisement call of the new species has a call duration of 689–840 ms, contains 15–26 pulses, is emitted at an average pulse rate of 25.5 pulses per second, and has a dominant frequency ranging 3088–3610 Hz. The genetic divergence between the new species and its morphologically most similar congeners (A. spumarius and A. pulcher) is greater than 4%. Atelopus manauensis sp. nov. is closely related to species of the A. hoogmoedi complex inhabiting the Guiana Shield. The new species has a small geographic distribution (approximately 4500 km2) in a landscape that is strongly threatened by the growth of Manaus, the largest city in Brazilian Amazonia. The new species is considered critically endangered and in need of urgent conservation measures.

A new species of the genus Microhyla Tschudi, 1838 (Amphibia: Anura: Microhylidae) from Tay Nguyen Plateau, Central Vietnam

Zootaxa ◽  
2019 ◽  
Vol 4543 (4) ◽  
pp. 549 ◽  
Author(s):  
LUAN THANH NGUYEN ◽  
NIKOLAY A. JR. POYARKOV ◽  
TIEP TAN NGUYEN ◽  
TAM AI NGUYEN ◽  
VY HUU TRAN ◽  
...  
Keyword(s):  
New Species ◽  
Dominant Frequency ◽  
Advertisement Call ◽  
Acoustic Data ◽  
Bright Orange ◽  
Central Vietnam ◽  
Plateau Central ◽  
Skin Smooth ◽  
Ventral Skin ◽  
A New Species

We describe a new species of Microhyla from Tram Lap forest, Gia Lai Province, Central Vietnam based on morphological, molecular, and acoustic data. The new species resembles M. butleri morphologically, but differs from all congeners by a combination of the following morphological attributes: (1) medium-sized adult snout–vent length 25.2–27.0 mm in 15 males and 30.5 mm in a single female; (2) body habitus moderately stocky; (3) head flat, snout rounded, slightly prominent in ventral profile; (4) dorsum and flanks slightly shagreened with evenly scattered tiny tubercles, ventral skin smooth; (5) first finger well developed, more than one-half the length of the second finger; (6) tips of three outer fingers slightly enlarged, forming weak disks and tips of all toes distinctly dilated into wide disks with narrow peripheral grooves; (7) finger and toe disks with dorsal median longitudinal grooves; (8) three palmar tubercles and two metatarsal tubercles; (9) tibiotarsal articulation of adpressed limb reaching slightly beyond the orbit; (10) webbing formula: I 1¾–2 II 1½–2¾ III 2–31/3 IV 3¼–1½ V; (11) in life, chin and throat yellowish to bright-orange with tiny dark brown speckling laterally; and (12) a call consisting of 15–26 pulses with a dominant frequency of 1.8–2.2 kHz (recorded at 18.5ºC). We also provide a preliminary genealogy of Microhyla based on analysis of a 2644 bp fragment of 12S–16S rRNA mitochondrial DNA. Based on the examed data, the new species and M. butleri are sister-species (genetic p-distance: 9.0%) and it can be distinguished from M. butleri by its morphology (size, webbing on toes, color) and advertisement call. Interspecific genetic p-distances between the new species and its congeners vary from 9.0% to 14.8%. Microhyla aurantiventris sp. nov. occurs in evergreen montane tropical forests at elevations around 1200 m a.s.l. and is known only from the type locality. The new species appears to be threatened due to intensive logging and agriculture plantation. 

scholarly journals A new species of Dendropsophus (Anura, Hylidae) from southwestern Amazonia with a green bilobate vocal sac

ZooKeys ◽  
2020 ◽  
Vol 942 ◽  
pp. 77-104 ◽  
Author(s):  
Miquéias Ferrão ◽  
Jiří Moravec ◽  
James Hanken ◽  
Albertina Pimentel Lima
Keyword(s):  
New Species ◽  
Dominant Frequency ◽  
Integrative Taxonomy ◽  
Species Group ◽  
Advertisement Call ◽  
South American ◽  
Molecular Phylogenetic ◽  
Madeira River ◽  
American Frog ◽  
A New Species

Recent studies have shown that species diversity of the South American frog genus Dendropsophus is significantly underestimated, especially in Amazonia. Herein, through integrative taxonomy a new species of Dendropsophus from the east bank of the upper Madeira River, Brazil is described. Based on molecular phylogenetic and morphological analyses, the new species is referred to the D. microcephalus species group, where it is differentiated from its congeners mainly by having a green bilobate vocal sac and an advertisement call comprising 1–4 monophasic notes emitted with a dominant frequency of 8,979–9,606 Hz. Based on intensive sampling conducted in the study area over the last ten years, the new species is restricted to the east bank of the upper Madeira River, although its geographic range is expected to include Bolivian forests close to the type locality.

A new species of Leptolalax (Anura: Megophryidae) from northeastern Cambodia

Zootaxa ◽  
2010 ◽  
Vol 2567 (1) ◽  
pp. 57 ◽  
Author(s):  
JODI J. L. ROWLEY ◽  
BRYAN L. STUART ◽  
NEANG THY ◽  
DAVID A. EMMETT
Keyword(s):  
New Species ◽  
Sequence Divergence ◽  
Ventral Surface ◽  
Dominant Frequency ◽  
Evergreen Forest ◽  
Advertisement Call ◽  
Adult Males ◽  
Introductory Note ◽  
Data Deficient ◽  
A New Species

We describe a new species of megophryid frog in the genus Leptolalax from the Kon Tum Plateau in northeastern Cambodia. Leptolalax melicus sp. nov. is distinguished from its congeners by a combination of an off-white to pale pink ventral surface with diffuse dark brown blotches and distinct white speckling, finger I < II, an absence of webbing and dermal fringes on fingers, slight basal webbing and no dermal fringes on toes, body size (19.5–22.7 mm for seven adult males), an absence of ventrolateral glandular lines, dorsum mostly smooth with no skin ridges, and a unique advertisement call consisting of a single long introductory note containing 8–50 pulses, followed by 3–11 predominantly single-pulsed notes, and with an average dominant frequency of 3560–3610 Hz. Leptolalax melicus can be further distinguished from the morphologically similar L. applebyi in having more distinct dorsal patterning, and significantly larger pectoral and femoral glands. Leptolalax melicus and L. applebyi also differ by 6.1% sequence divergence at the 16S mtDNA gene. All specimens of L. melicus were found near rocky streams in evergreen forest between 650–850 m elevation. We suggest the new species should be considered Data Deficient following IUCN’s Red List categories.

A new species of Leptolalax (Anura: Megophryidae) from central Vietnam

Zootaxa ◽  
2009 ◽  
Vol 2198 (1) ◽  
pp. 51-60 ◽  
Author(s):  
JODI J. L. ROWLEY ◽  
CAO TIEN TRUNG
Keyword(s):  
New Species ◽  
Ventral Surface ◽  
Dominant Frequency ◽  
Evergreen Forest ◽  
Advertisement Call ◽  
Adult Males ◽  
Uniformly Smooth ◽  
Central Vietnam ◽  
Data Deficient ◽  
A New Species

We describe a new species of megophryid frog in the genus Leptolalax from central Vietnam. Leptolalax applebyi is distinguished from its congeners by a combination of body size (19.6–20.8 mm for five adult males; 21.7 mm for single adult female), uniformly smooth, dark brown dorsum lacking tubercles, dark brownish pink ventral surface with white speckling, an absence of webbing and dermal fringes on fingers, slight basal webbing and no dermal fringes on toes, and short tibia (TIB:SVL 0.466–0.480). The advertisement call of L. applebyi consists of 4–5 notes with a dominant frequency of 3962.1–4306.6 Hz, repeated at a rate of approximately 9 notes per second. All specimens were found at the headwaters of rocky streams in evergreen forest above 1300 m elevation. We suggest the species should be considered Data Deficient following IUCN’s Red List categories.

scholarly journals A new species of Leptolalax (Anura: Megophryidae) from southern Vietnam

Zootaxa ◽  
2011 ◽  
Vol 2796 (1) ◽  
pp. 15 ◽  
Author(s):  
JODI J. L. ROWLEY ◽  
DUONG THI THUY LE ◽  
DAO THI ANH TRAN ◽  
HUY DUC HOANG
Keyword(s):  
New Species ◽  
Sequence Divergence ◽  
Ventral Surface ◽  
Dominant Frequency ◽  
Evergreen Forest ◽  
Advertisement Call ◽  
Adult Males ◽  
Southern Vietnam ◽  
Data Deficient ◽  
A New Species

We describe a new species of small megophryid frog from the Langbian Plateau in southern Vietnam, the southernmost record of Leptolalax from Vietnam. Leptolalax bidoupensis sp. nov. is distinguished from its congeners by a combination of a dark brownish red ventral surface with white speckling on entire ventral surface including throat, arms and legs, small size (23.6–24.6 mm in four adult males and 29.2–29.4 mm in two adult females), bicoloured iris (coppery red upper half, fading to pale silver ventrally), a mostly smooth skin texture with no skin ridges, and relatively short tibia (male TIB:SVL 0.44–0.46). The male advertisement call of the new species, consisting of 6–9 single-pulsed notes with a dominant frequency of 1.9–3.8 kHz, is also unique among Leptolalax species for which calls are known. From the morphologically similar L. applebyi and L. melicus, L. bidoupensis sp. nov. differs by 9.3% and 9.6% sequence divergence at the 16S mtDNA gene. At present, the new species is known from montane evergreen forest between 1620–1730 m elevation, within an area of 1 km 2 . We suggest the species should be considered Data Deficient following IUCN’s Red List categories.

A new species of Leptodactylus Fitzinger (Anura, Leptodactylidae) from Serra do Brigadeiro, State of Minas Gerais, Southeastern Brazil

Zootaxa ◽  
2008 ◽  
Vol 1861 (1) ◽  
pp. 44 ◽  
Author(s):  
ULISSES CARAMASCHI ◽  
RENATO N. FEIO ◽  
VINÍCIUS A. SÃO-PEDRO
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Dominant Frequency ◽  
Species Group ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Advertisement Call ◽  
Large Size ◽  
O 31 ◽  
A New Species

A new species of Leptodactylus belonging to the L. fuscus species group, and related to the L. mystaceus complex, is described from the Lagoa das Bromélias (20 o 53’S, 42 o 31’W; 1,227 m above sea level), Parque Estadual da Serra do Brigadeiro, Municipality of Ervália, State of Minas Gerais, Southeastern Brazil. Leptodactylus cupreus sp. nov. is characterized by the large size for the group (SVL 50.1–55.1 mm in males) and color pattern. The new species has a non-pulsed advertisement call, with call rate about 12 calls/s and a dominant frequency between 2,800 and 3,058 Hz.

scholarly journals A new species of Amazonian snouted treefrog (Hylidae:Scinax) with description of a novel species-habitat association for an aquatic breeding frog

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4321 ◽  
Author(s):  
Miquéias Ferrão ◽  
Rafael de Fraga ◽  
Jiří Moravec ◽  
Igor L. Kaefer ◽  
Albertina P. Lima
Keyword(s):  
New Species ◽  
Species Abundance ◽  
Dominant Frequency ◽  
Lateral View ◽  
Habitat Associations ◽  
Brown Spot ◽  
Advertisement Call ◽  
Habitat Association ◽  
Dark Brown Spot ◽  
A New Species

The genusScinaxis one of the most specious genera of treefrogs of the family Hylidae. Despite the high number of potential new species ofScinaxrevealed in recent studies, the rate of species descriptions for Amazonia has been low in the last decade. A potential cause of this low rate may be the existence of morphologically cryptic species. Describing new species may not only impact the taxonomy and systematics of a group of organisms but also benefit other fields of biology. Ecological studies conducted in megadiverse regions, such as Amazonia, often meet challenging questions concerning insufficient knowledge of organismal alpha taxonomy. Due to that, detecting species-habitat associations is dependent on our ability to properly identify species. In this study, we first provide a description of a new species (including its tadpoles) of the genusScinaxdistributed along heterogeneous landscapes in southern Amazonia; and secondly assess the influence of environmental heterogeneity on the new species’ abundance and distribution.Scinax ruberoculatussp. nov. differs from all nominal congeners by its small size (SVL 22.6–25.9 mm in males and 25.4–27.5 mm in females), by having a dark brown spot on the head and scapular region shaped mainly like the mothCopiopteryx semiramis(or a human molar in lateral view, or a triangle), bicolored reddish and grey iris, snout truncate in dorsal view, bilobate vocal sac in males, by its advertisement call consisting of a single pulsed note with duration of 0.134–0.331 s, 10–23 pulses per note, and dominant frequency 1,809–1,895 Hz. Both occurrence and abundance of the new species are significantly influenced by silt content in the soil. This finding brings the first evidence that edaphic factors influence species-habitat association in Amazonian aquatic breeding frogs.

A new species of Scinax (Anura: Hylidae) from Rocky Montane Fields in Southeastern and Central Brazil

Zootaxa ◽  
2009 ◽  
Vol 2269 (1) ◽  
pp. 53-64 ◽  
Author(s):  
ADRIANA PUGLIESE ◽  
DÉLIO BAÊTA ◽  
JOSÉ P. POMBAL, JR.
Keyword(s):  
New Species ◽  
Dominant Frequency ◽  
Lateral View ◽  
Brown Spot ◽  
Inguinal Region ◽  
Southeastern Brazil ◽  
Medium Size ◽  
Advertisement Call ◽  
Tree Frog ◽  
A New Species

We describe a new species of tree frog of the Scinax ruber clade from rocky field mountains in the states of Goiás and Minas Gerais in central and southeastern Brazil. Scinax rogerioi sp. nov. is characterized by medium size (SVL males 25.0–35.6 mm; females 28.0–34.5 mm); snout protruding in lateral view and almost subovoid in dorsal view; loreal region concave; adhesive discs on fingers medium-sized, wider than long; interrupted, irregular dark brown blotches on dorsum from behind eyes to inguinal region from head to inguinal region; inverted brown triangular interocular blotch; brown spot in loreal region; advertisement call is a multipulsed note, with 6 to 12 pulses (interval between pulses 0.02 to 0.03s), and a dominant frequency of 1.38 to 3.19 kHz. Description of the advertisement call and data on natural history are provided.

A new species of Leptobrachella (Anura: Megophryidae) from southern Guangxi, China

Zootaxa ◽  
2019 ◽  
Vol 4563 (1) ◽  
pp. 67 ◽  
Author(s):  
WEICAI CHEN ◽  
XIAOWEN LIAO ◽  
SHICHU ZHOU ◽  
YUNMING MO
Keyword(s):  
Dna Sequences ◽  
Nature Reserve ◽  
Ventral Surface ◽  
Dominant Frequency ◽  
Evergreen Forest ◽  
Advertisement Call ◽  
Rrna Gene ◽  
Introductory Note ◽  
A New Species ◽  
The 16S Rrna Gene

This study describes a new member of the genus Leptobrachella, Leptobrachella shangsiensis sp. nov., based on morphological, acoustic and molecular analyses from southern Guangxi, China. L. shangsiensis sp. nov. differs from its congeners by a combination of the following characters: (1) SVL 24.9–29.4 mm in 11 males and 30.8–35.9 mm in 5 females, (2) black supratympanic fold with dark reddish rim, (3) ventrolateral glands distinct, forming a broken line, (4) ventral surface yellowish creamy-white with marble texture, (5) iris copper in the upper and silver in the lower fifth and (6) toe webbing basal and narrow lateral fringes. The male advertisement call of L. shangsiensis sp. nov. consists of one note per call, lacking an introductory note, with a mean dominant frequency of 5.5–6.5 kHz at the ambient temperature of 21.5ºC. Uncorrected sequence divergences between L. shangsiensis sp. nov. and all homologous DNA sequences available for the 16S rRNA gene were found to be > 5.9%. L. shangsiensis sp. nov. occurs in an evergreen forest in Shiwandashan National Nature Reserve located at an elevation of 450–550 m. 

A new species of Phyllodytes Wagler, 1830 (Anura, Hylidae) from the Atlantic Forest of southern Bahia, Brazil

Zootaxa ◽  
2017 ◽  
Vol 4238 (1) ◽  
pp. 135 ◽  
Author(s):  
EUVALDO MARCIANO-JR ◽  
AMANDA SANTIAGO F. LANTYER-SILVA ◽  
MIRCO SOLÉ
Keyword(s):  
New Species ◽  
Sea Level ◽  
Atlantic Forest ◽  
Dominant Frequency ◽  
Advertisement Call ◽  
Harmonic Structure ◽  
Adult Males ◽  
Southern Bahia ◽  
A New Species ◽  
Northeastern Atlantic

We describe a new species of Phyllodytes from Ilhéus (15º04’S, 39º03’W; 95 m above sea level), south of state of Bahia, in the northeastern Atlantic Forest of Brazil. Phyllodytes megatympanum sp. nov. is diagnosable by the following combination of characters: (1) dorsum of body, arms, and legs uniformly light brown; (2) groin yellow; (3) snout pointed in dorsal view, protruding in profile; (4) tympanum large with a round distinct tympanic annulus; (5) adult males with two anterior large odontoids followed by a series of smaller odontoids on each side of the mandible; (6) well-developed tubercle near tibio-tarsal joint; (7) advertisement call composed of a series of 12 to 19 unpulsed notes, with harmonic structure and (8) mean dominant frequency of 3.98 kHz. 

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