Two new species of Ranitomeya (Anura: Dendrobatidae) from eastern Amazonian Peru

Zootaxa ◽  
2010 ◽  
Vol 2439 (1) ◽  
pp. 1 ◽  
Author(s):  
PEDRO E. PEREZ-PEÑA ◽  
GERMAN CHAVEZ ◽  
EVAN TWOMEY ◽  
JASON L. BROWN

We describe two new species of Ranitomeya (family Dendrobatidae), R. yavaricola sp. nov. and R. cyanovittata sp. nov., from Peru. Ranitomeya yavaricola sp. nov. is morphologically similar to certain other species of Ranitomeya (in particular R. flavovittata), but the new species can be easily distinguished from all other species of Ranitomeya based on its unique limb coloration: solid bronze without black markings. Despite having searched in numerous localities throughout this region, we have found the new species at only a single locality near the confluence of the Yavarí and Yavari-Mirin rivers. Based on acoustic and molecular data, the new species is a member of the vanzolinii group, and is sister to the second new species, R. cyanovittata. Ranitomeya cyanovittata sp. nov. is only known from a single locality in the Sierra del Divisor in Amazonian Peru. This species can be easily distinguished from the other species of Ranitomeya by a unique coloration pattern that consists of just two colors: black background with blue lines or reticulations.

Zootaxa ◽  
2021 ◽  
Vol 4995 (1) ◽  
pp. 111-128
Author(s):  
LUCIANO DIOTTI ◽  
ROBERTO CALDARA ◽  
IVO TOŠEVSKI

Two new species of the weevil genus Rhamphus from Italy are herein described: R. bavierai n. sp. (Sicily) and R. hampsicora n. sp. (Sardinia). Both are morphologically and from a molecular perspective close to R. oxyacanthae (Marsham, 1802) and R. monzinii Pesarini & Diotti, 2012. Aside from a diagnostic description and a synoptic key, distribution data and notes on the host plants of the four species are reported. Whereas R. monzinii can be distinguished by several morphological characters, the other three species are morphologically very similar to each other and separable only by the combination of a few subtle characters. On the contrary, a preliminary molecular study revealed substantial divergences of mtCOI from 6.2 to 14.9% between the species, confirming the importance of an integrative taxonomy.  


Phytotaxa ◽  
2016 ◽  
Vol 245 (4) ◽  
pp. 251 ◽  
Author(s):  
Bernadette Grosse-Veldmann ◽  
Barry J Conn ◽  
Maximilian Weigend

Taxon differentiation in Urtica from Australia and New Zealand initially appears to be uncomplicated, with taxa being easy to distinguish. However, a revision of the type material, more recent collections and a comparison of Australian and New Zealand material shows that three of the names are misapplied. Urtica gracilis (as U. dioica subsp. gracilis, North America) has been reported as introduced to New Zealand, but molecular data retrieve the corresponding specimens with the other NZ-species and we argue that they belong to the polygamous Australian species Urtica incisa. A critical revision of the protologues and type collections reveals that the names Urtica incisa, originally described from mainland Australia, and U. incisa var. linearifolia from Tasmania, have been misapplied to New Zealand taxa. Both New Zealand “Urtica linearifolia” and “U. incisa” represent unnamed taxa and are here formally described as Urtica perconfusa and Urtica sykesii, respectively. Urtica perconfusa corresponds to what is erroneously known as U. linearifolia. Urtica sykesii is an overlooked species, erroneously interpreted as U. incisa in New Zealand. It may be differentiated from U. incisa Poir. by its smaller, deltoid leaf lamina with a truncate to subcordate base (versus truncate to cuneate), fewer leaf teeth (9–12 on each side rather than 14–20 in U. incisa) and smaller plant size (20–60 cm rather than 60–200 cm in U. incisa). We found evidence for the presence of true introduced U. dioica subsp. dioica in New Zealand, but not for U. gracilis. Rather, New Zealand specimens assigned to the putatively introduced northern hemisphere U. gracilis belong to U. incisa as described from Australia. Typifications for the species treated here are provided, including an updated key to the Australian and New Zealand taxa. There are thus six native species of Urtica in New Zealand, four of them endemic, and two also indigenous in Australia.


ZooKeys ◽  
2019 ◽  
Vol 898 ◽  
pp. 121-158
Author(s):  
Natdanai Likhitrakarn ◽  
Sergei I. Golovatch ◽  
Irina Semenyuk ◽  
Boris D. Efeykin ◽  
Somsak Panha

The genus Orthomorpha is shown to currently be represented in Vietnam by ten species or varieties, including new records of O. arboricola (Attems, 1937), O. coarctata (de Saussure, 1860), O. rotundicollis (Attems, 1937) and O. scabra Jeekel, 1964, and two new species, O. caramelsp. nov. and O. vietnamicasp. nov. A key to all eight Orthomorpha species and two varieties known to occur in Vietnam is provided. Although the morphological characters that have been traditionally used for Orthomorpha taxonomy are here considered superior to molecular ones, molecular-based phylogenetic relationships and taxon assignments within the tribe Orthomorphini are provisionally analyzed using fragments of the cytochrome c oxidase subunit I (COI) mitochondrial gene. The preferred phylograms, both rooted and unrooted, demonstrate the monophyly of the tribe Orthomorphini, but due to the special, uncertain or even controversial position of O. coarctata, which occurs closer to the genera Antheromorpha and Hylomus, the genus Orthomorpha in current usage appears to be polyphyletic. However, if O. coarctata is to be treated within the monotypic genus Asiomorpha, the monophyly of Orthomorpha becomes manifest. On the other hand, a cautious approach is followed to avoid descriptions of suspicious new taxa/species. Thus, solely because the average genetic distance between O. rodundicollis subrotundicollisvar. nov. and O. rodundicollis, as well as that between O. scabra grandisvar. nov. and O. scabra, are both found to be negligibly small, the statuses of the sympatric and closest yet morphologically different varieties are treated only as such, i.e., infrasubspecific categories. The apparent discord observed between morphological and molecular data is obviously due to only partial and single-gene topologies used, possibly also to hybridization already known to occur in some closely related and sympatric paradoxosomatid species or even genera.


Zootaxa ◽  
2020 ◽  
Vol 4819 (3) ◽  
pp. 499-520
Author(s):  
ALFREDO CARVALHO-FILHO ◽  
IVAN SAZIMA ◽  
SERGIO MAIA QUEIROZ LIMA ◽  
DANIEL ALMEIDA ◽  
LIANA MENDES ◽  
...  

The labrisomid genus Malacoctenus from Southwestern Atlantic is reviewed. Two new species of scaly blennies formerly reported by several authors as Malacoctenus triangulatus are described. One is found at the oceanic islands Fernando de Noronha Archipelago and Atol das Rocas, and the other is distributed along the Brazilian coastline. The two new species differ from other species of the genus and from each other by different combinations of the number of lateral-line scales, number and size of head cirri, and color pattern. Molecular data also support species’ distinctiveness between M. triangulatus and the species described herein. Two additional recognized Brazilian species, M. delalandii and M. brunoi are described and illustrated and an identification key to all recognized Atlantic species is provided.


Nematology ◽  
2013 ◽  
Vol 15 (4) ◽  
pp. 431-449 ◽  
Author(s):  
Sergio Álvarez-Ortega ◽  
Sergei A. Subbotin ◽  
Reyes Peña-Santiago

Several species of Aporcelaimellus collected in natural areas in California, USA, are characterised on the basis of morphological, morphometric and molecular data. Two new species are identified and described here. Aporcelaimellus californicus sp. n. is characterised by its body length of 2.46-3.42 mm, lip region offset by constriction and 24-26 μm broad, odontostyle 23-24 μm long, neck 611-765 μm long, pharyngeal expansion occupying 50-52% of total neck length, a dorsal cellular mass present at level of cardia, uterus simple and 246-408 μm long, V = 53-58, short conoid tail (43-50 μm, c = 56-71, c′ = 0.8-1.0) with a large hyaline portion occupying more than half of its total length, spicules 98 μm long, and 8-9 spaced ventromedian supplements. Aporcelaimellus salicinus sp. n. is distinguished by its body length of 1.45-1.94 mm, lip region offset by deep constriction and 16-18 μm broad, odontostyle 18-20 μm long, neck 393-521 μm long, pharyngeal expansion occupying 45-51% of total neck length, presence of a dorsal cellular mass at level of cardia, uterus simple and 21-45 μm long, V = 51-57, tail conical to conoid (31-38 μm, c = 39-59, c′ = 1.0-1.4), and male unknown. Measurements, sequences and taxonomic comments are provided for the other three Aporcelaimellus species. Californian Aporcelaimellus display a notable morphological homogeneity but a remarkable molecular diversity, putting into question the monophyly of this group.


Zootaxa ◽  
2007 ◽  
Vol 1434 (1) ◽  
pp. 51 ◽  
Author(s):  
ANNA MURRAY ◽  
GREG W. ROUSE

Two new species of Terebrasabella Fitzhugh & Rouse, 1999 are described from eastern Australia. Terebrasabella hutchingsae sp. nov., was found from preserved coral rock debris collected in 1977 on the outer Barrier Reef near Lizard Island, Queensland. Terebrasabella fitzhughi sp. nov., was found alive in burrows in and among spirorbin serpulid tubes on intertidal rocks in Tasmania in 1996. Both species were found in mucoid tubes, and brood their young in a manner similar to the only other described species of Terebrasabella, T. heterouncinata Fitzhugh & Rouse, 1999. Terebrasabella hutchingsae sp. nov., is exceptional as it possesses a type of thoracic neurochaetal uncinus different from the other two species, and which is similar to the notochaetal acicular “palmate hook” seen in Caobangia. Descriptions of both species are given, and the diagnosis for Terebrasabella is emended. Larval and chaetal morphology and relationships among of the three known Terebrasabella spp. are discussed.


1898 ◽  
Vol 30 (1) ◽  
pp. 12-14 ◽  
Author(s):  
J. D. Tinsley

Orthezia cheilanthi, n. sp.—Adult ♀ Length, 3.5 mm. Width, 3-3.5 mm. Length + ovisac, 6-8 mm. Width of Ovisac 3-4 mm. Body above covered with whtie secretion, which forms lateral and sub. dorsal longitudinal keels. A well-defined subdorsal furrow between the keels and the lateral margin formed by 3 or more rows of paltes; these are smaller than the projecting marginal plates, which are flattened; caudal plate and the 3 or 4 plates on each side of it very little longer than the lateral plates. The structure of the secretion is compact; in most of the other species of Orthezia it is fluffy.


Author(s):  
Carol Simon ◽  
Guillermo San Martín ◽  
Georgina Robinson

Two new species of South African Syllidae of the genusSyllisLamarck, 1818 are described.Syllis unzimasp. nov. is characterized by having unidentate compound chaetae with long spines on margin, a characteristic colour pattern and its reproduction by vivipary. Vivipary is not common among the polychaetes, but most representatives occur in the family Syllidae Grube, 1850 (in five otherSyllisspecies, two species ofDentatisyllisPerkins, 1981 and two species ofParexogoneMesnil & Caullery, 1818).Syllis unzimasp. nov. differs from the other viviparous species in having large broods (>44 juveniles) which develop synchronously. Development of the juveniles is similar to that of free-spawningSyllisspecies, but the appearance of the first pair of eyespots and the differentiation of the pharynx and proventricle occur later inS. unzima.Syllis amicarmillarissp. nov., is characterized by having an elongated body with relatively short, fusiform dorsal cirri and the presence of one or two pseudosimple chaeta on midbody parapodia by loss of blade and enlargement of shaft.Syllis unzimasp. nov. was found in high densities on culturedHolothuria scabraJaeger, 1833 with single specimens found on a culturedCrassostrea gigasThunberg, 1793 and on coralline algae, respectively, whileS. amicarmillariswas found mainly in sediment outside an abalone farm and less frequently on culturedHaliotis midaeLinnaeus, 1758. We discuss the possible benefits of the association withH. scabratoS. unzimasp. nov.


Zootaxa ◽  
2021 ◽  
Vol 4958 (1) ◽  
pp. 34-44
Author(s):  
DAN A. POLHEMUS

Two new species of Ocyochterus are described, O. graziae from Ecuador, and O. gilloglyi from Panama, and compared to the other two Andean species previously known in the genus. Dorsal habitus and anterior head photos are provided for all described species of Ocyochterus, and photomicrographs are provided for the male genitalic structures of O. graziae and O. gilloglyi. A distribution map is provided for all species in the genus. 


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