scholarly journals Understanding morphological variability in a taxonomic context in Chilean diplomystids (Teleostei: Siluriformes), including the description of a new species

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e2991 ◽  
Author(s):  
Gloria Arratia ◽  
Claudio Quezada-Romegialli
Keyword(s):  
New Species ◽  
Current Knowledge ◽  
Morphological Variability ◽  
Morphological Characters ◽  
External Morphology ◽  
Valid Species ◽  
Body Proportions ◽  
Chilean Patagonia ◽  
A New Species ◽  
Osteological Characters

Following study of the external morphology and its unmatched variability throughout ontogeny and a re-examination of selected morphological characters based on many specimens of diplomystids from Central and South Chile, we revised and emended previous specific diagnoses and considerDiplomystes chilensis,D. nahuelbutaensis,D. camposensis, andOlivaichthys viedmensis(Baker River) to be valid species. Another group, previously identified asDiplomystessp.,D. spec.,D. aff.chilensis, andD. cf.chilensisinhabiting rivers between Rapel and Itata Basins is given a new specific name (Diplomystes incognitus) and is diagnosed. An identification key to the Chilean species, including the new species, is presented. All specific diagnoses are based on external morphological characters, such as aspects of the skin, neuromast lines, and main lateral line, and position of the anus and urogenital pore, as well as certain osteological characters to facilitate the identification of these species that previously was based on many internal characters. Diplomystids below 150 mm standard length (SL) share a similar external morphology and body proportions that make identification difficult; however, specimens over 150 mm SL can be diagnosed by the position of the urogenital pore and anus, and a combination of external and internal morphological characters. According to current knowledge, diplomystid species have an allopatric distribution with each species apparently endemic to particular basins in continental Chile and one species (O. viedmensis) known only from one river in the Chilean Patagonia, but distributed extensively in southern Argentina.

scholarly journals A new species of Sacada Walker, 1862 from Thailand (Lepidoptera, Pyralidae, Pyralinae)

2020 ◽  
Vol 4 (2) ◽  
pp. 71-77
Author(s):  
Markku J. Pellinen ◽  
Reza Zahiri ◽  
Pasi Sihvonen
Keyword(s):  
New Species ◽  
Dna Barcode ◽  
Morphological Characters ◽  
Valid Species ◽  
Morphological Comparison ◽  
Northern Thailand ◽  
Lepidoptera Pyralidae ◽  
A New Species

A new species of Sacada from northern Thailand is described: S. chaehomensissp. nov. Pellinen & Zahiri (Lepidoptera: Pyralidae, Pyralinae). Morphological characters and DNA barcode data are provided for the new species, with a morphological comparison to S. dzonguensis and S. umtasorensis, and a DNA-barcode comparison to S. ragonotalis and S. albioculalis, respectively. After this addition, the current number of valid species in the genus Sacada is 43.

scholarly journals A new climbing shrew from Sulawesi highlights the tangled taxonomy of an endemic radiation

2019 ◽  
Vol 100 (6) ◽  
pp. 1713-1725 ◽  
Author(s):  
Jacob A Esselstyn ◽  
Anang S Achmadi ◽  
Heru Handika ◽  
Thomas C Giarla ◽  
Kevin C Rowe
Keyword(s):  
New Species ◽  
Genetic Data ◽  
Morphological Characters ◽  
Small Sample ◽  
Valid Species ◽  
Undescribed Species ◽  
Type Specimens ◽  
Areas Of Endemism ◽  
Small Sample Sizes ◽  
A New Species

Abstract We describe a new species of Crocidura (Soricidae) from Sulawesi Island, Indonesia, documenting its novelty with both genetic and morphological characters. The new species is widespread on the island, with vouchered records from nine general localities distributed among five of the island’s areas of endemism. Morphologically, the new species is readily distinguished from all other described Sulawesi Crocidura by its intermediate body size, gray pelage, and long, hairy tail. The new species was mainly captured in pitfalls placed in the ground, but we also obtained evidence that it readily climbs trees and may be scansorial in its locomotor habits. Populations of the new species sampled from across the island are closely related, separated by < 0.02 uncorrected mitochondrial p-distances. The new species is one member of an endemic radiation of shrews on Sulawesi now known to contain six valid species and several undescribed species, all within the genus Crocidura. Resolution of species limits and phylogenetic relationships in this radiation is hindered by habitat loss at type localities, historical designation of new species using very small sample sizes, and a lack of genetic data from type specimens. Kami mendeskripsikan spesies baru Crocidura (Soricidae) dari Pulau Sulawesi, Indonesia, sekaligus mendokumentasikan keunikan karakter secara genetik maupun morfologi dari spesies tersebut. Spesies baru ini tersebar luas di Pulau Sulawesi, diketahui berdasarkan spesimen yang berasal dari sembilan lokasi umum yang tersebar di lima kawasan endemik di pulau tersebut. Secara morfologi, spesies baru ini dapat dibedakan dari spesies Crocidura lainnya dari Sulawesi berdasarkan ukuran tubuh yang sedang, rambut tubuh berwarna abu-abu, dan ekor yang panjang dan berambut. Spesies baru ini sebagian besar diperoleh dari perangkap sumuran yang ditanam didalam tanah, selain itu kami juga mendapatkan bukti bahwa spesies ini mampu memanjat pohon dan kemungkinan memiliki perilaku sebagai pemanjat. Beberapa populasi spesies yang dikoleksi dari Sulawesi ini mempunyai kekerabatan yang dekat, hanya dipisahkan oleh jarak proporsi DNA mitokondria (tidak terkoreksi) sebesar < 0.02. Spesies baru ini merupakan salah satu anggota dari suatu kelompok radiasi endemik cecurut di Sulawesi yang sampai saat ini diketahui terdiri atas enam spesies yang valid, dan beberapa spesies yang belum dideskripsikan, semuanya termasuk didalam genus Crocidura. Kepastian dalam menetapkan batasan jarak antar spesies dan hubungan kekerabatan genetik dari radiasi kelompok cecurut di Sulawesi terkendala oleh kerusakan habitat pada lokasi spesimen tipe, sejarah penamaan spesies yang hanya berdasarkan sampel yang sedikit, dan keterbatasan data molekuler dari spesimen tipe.

The inquiline oak gall wasp (Hymenoptera: Cynipidae) fauna from Colombia: new data and species

2020 ◽  
pp. 1-14 ◽  
Author(s):  
Irene Lobato-Vila ◽  
Guadalupe Caicedo ◽  
Pedro A. Rodríguez ◽  
Juli Pujade-Villar
Keyword(s):  
New Species ◽  
Current Knowledge ◽  
Morphological Variability ◽  
Identification Key ◽  
Distribution Data ◽  
Gall Wasp ◽  
Gall Wasps ◽  
First Time ◽  
A New Species

Abstract A review of the current knowledge on the diversity of inquiline oak gall wasps (Hymenoptera: Cynipidae: Cynipinae) from Colombia is conducted for the first time. A new species, Synergus dawnus Lobato-Vila and Pujade-Villar, is formally described and illustrated, and an undescribed specimen from the same genus is diagnosed and discussed. New biological, morphological, and distribution data of the only two previously known species from this country (Synergus colombianus Nieves-Aldrey, 2005 and Synergus pedroi Pujade-Villar, Lobato-Vila, and Fernández-Garzón, 2017), as well as an identification key to the Colombian species of Synergus Hartig, 1840, are provided. The morphological variability of the Colombian species of Synergus, especially of S. pedroi, is discussed.

scholarly journals A new species of the genus Centruroides Marx (Scorpiones, Buthidae) from western Michoacán State, México using molecular and morphological evidence

ZooKeys ◽  
2019 ◽  
Vol 859 ◽  
pp. 31-48
Author(s):  
Ana F. Quijano-Ravell ◽  
Luis F. de Armas ◽  
Oscar F. Francke ◽  
Javier Ponce-Saavedra
Keyword(s):  
New Species ◽  
Mitochondrial Gene ◽  
Morphological Characters ◽  
Integrative Taxonomy ◽  
Valid Species ◽  
Morphological Evidence ◽  
Molecular Evidence ◽  
Mountain Range ◽  
A New Species ◽  
Gene Mrna

A new species of scorpion belonging to the genus Centruroides Marx, 1890 is described from the Coalcomán mountain range, western Michoacán State, Mexico. Its general aspect resembles Centruroidesruana Quijano-Ravell & Ponce-Saavedra, 2016, and C.infamatus (C. L. Koch, 1844), but it is a smaller species having lower pectinal tooth counts; also, males of C.ruana have the pedipalp chelae slightly thicker, whereas C.infamatus has a subaculear tubercle nearer to the base of the aculeus. Another species with similar aspect is Centruroidesornatus Pocock, 1902; however, a preliminary molecular analysis of the mitochondrial gene mRNA 16S showed genetic divergence (measured as p-distance) near to 10% between these species, and lower differences between the new species with respect to C.infamatus (4.63%) and C.ruana (5.07%). The molecular evidence together with the morphological characters (integrative taxonomy) are sufficient for recognizing the Coalcomán population as a separate and valid species.

scholarly journals First report of the genus Rhyncholagena Lang, 1944 from the South China Sea, with the description of a new species (Crustacea, Copepoda, Harpacticoida, Miraciidae)

ZooKeys ◽  
2018 ◽  
Vol 805 ◽  
pp. 15-31
Author(s):  
Lin Ma ◽  
Xin-zheng Li
Keyword(s):  
New Species ◽  
South China Sea ◽  
South China ◽  
Morphological Characters ◽  
Valid Species ◽  
Sediment Samples ◽  
First Report ◽  
China Sea ◽  
A New Species ◽  
The China Seas

During analysis of sediment samples from South China Sea, a new species belonging to the genusRhyncholagenaLang, 1944 was found and described here.Rhyncholagenaparaspinifersp. n.differs from its congeners by the following combined characteristics: body ornamented dorsally with at least one row of spinules on each somite except penultimate urosomite; A2 exopod two-segmented; P1 enp-2 with one inner seta; P3 exp-3 with two inner setae, P3 enp-2 with one inner seta; female P5 exopod with five setae; male P5 baseoendopod with two setae and exopod with four setae. This is the first report of the genusRhyncholagenain the China seas. In addition, a key to all valid species ofRhyncholagenais given, along with tables of morphological characters of all valid species and their distributions.

Description of new species of Resachus Delève, 1968 (Coleoptera: Limnichidae)

Zootaxa ◽  
2020 ◽  
Vol 4852 (5) ◽  
pp. 578-581
Author(s):  
KEITA MATSUMOTO
Keyword(s):  
New Species ◽  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Morphological Characters ◽  
Valid Species ◽  
Republic Of Congo ◽  
A New Species

There are 55 valid species and 8 genera of Afrotropical Limnichidae currently described (Delève, 1968; Spangler et. al. 2001; Hernando & Ribera, 2006; Hernando & Ribera, 2014). Resachus Delève is within the “Mandersia group of genera” according to Hernando & Ribera (2005) with 3 known species: Resachus lineatifrons Delève, 1968 [Democratic Republic of Congo, Zambia]; Resachus schuhi Hernando & Ribera, 2006 [Madagascar]; Resachus striatellus Delève, 1968 [Democratic Republic of Congo, Nigeria] (Delève, 1968; Hernando & Ribera, 2006). Specimens from Malawi have been identified as a new species. The new species have morphological characters, described in this paper, that distinguish them from any other known Resachus. 

Cis pickeri sp. nov. (Coleoptera: Ciidae) from Southern Africa

Zootaxa ◽  
2009 ◽  
Vol 2117 (1) ◽  
pp. 56-64 ◽  
Author(s):  
CRISTIANO LOPES-ANDRADE ◽  
NATALIA MATUSHKINA ◽  
GERDA BUDER ◽  
KLAUS-DIETER KLASS
Keyword(s):  
South Africa ◽  
New Species ◽  
Southern Africa ◽  
Male Genitalia ◽  
Morphological Characters ◽  
Species Group ◽  
External Morphology ◽  
Secondary Sexual Characters ◽  
A New Species ◽  
Secondary Sexual

A new species of ciid beetle from southwestern South Africa is described. Images of the habitus, male genitalia and other characters of the external morphology are provided. The observed variations of male secondary sexual characters are briefly discussed. The similarities of external morphological characters of Cis pickeri sp. nov. to other species of Cis Latreille are discussed, and the new species is tentatively included in the bilamellatus species group.

A new species of limestone-forest frog, genus Platymantis (Amphibia: Anura: Ceratobatrachidae) from central Luzon Island, Philippines

Zootaxa ◽  
2010 ◽  
Vol 2482 (1) ◽  
pp. 49 ◽  
Author(s):  
CAMERON D. SILER ◽  
ARVIN C. DIESMOS ◽  
CHARLES W. LINKEM ◽  
MAE L. DIESMOS ◽  
RAFE M. BROWN
Keyword(s):  
New Species ◽  
Banding Pattern ◽  
National Park ◽  
Large Body ◽  
Morphological Characters ◽  
Species Group ◽  
External Morphology ◽  
Smooth Skin ◽  
A New Species ◽  
Karst Habitats

We describe a new species of terrestrial limestone forest frog of the genus Platymantis from Biak Na Bato National Park in central Luzon Island, Philippines. Platymantis biak is assigned to the primarily arboreal Platymantis guentheri Species Group, and is distinguished from these and other congeners by features of its external morphology and preferred terrestrial limestone microhabitat. Several distinguishing morphological characters include a moderately large body (32.3–39.9 mm SVL for 23 males and 37.4–42.4 mm SVL for 8 females), moderately expanded finger discs and slightly expanded toe discs, smooth skin, and limb banding pattern. The new species is yet another species in a rapidly growing group of newly discovered Philippine forest frogs with preferences for forested, karst habitats.

scholarly journals Taxonomic notes on the rare ant genus Chrysapace with description of a new species from Brunei (Hymenoptera: Formicidae: Dorylinae)

2019 ◽  
Vol 59 (2) ◽  
pp. 467-480
Author(s):  
Aiki Yamada ◽  
Chung-Chi Lin ◽  
Katsuyuki Eguchi
Keyword(s):  
New Species ◽  
Dna Barcode ◽  
Morphological Characters ◽  
Previous Literature ◽  
Type Material ◽  
Valid Species ◽  
Single Colony ◽  
A New Species

Abstract The genus Chrysapace Crawley, 1924 is one of the rarest and poorly known lineages in the ant subfamily Dorylinae, currently composed of only three extant valid species from the Oriental Realm. There is some taxonomic obscurity concerning the distinction between two of the three valid species, C. sauteri (Forel, 1913) and C. costatus (Bharti & Wachkoo, 2013), resulting from previous unavailability of C. sauteri type material and inconsistency in descriptions provided in previous literature. In the present study, we examined the C. sauteri syntype and the C. costatus holotype as well as newly collected material and vouchers used in previous literature. Although both of the species agreed well with each other in most morphological characters of the worker, we tentatively retain the separation of these species based on differences in the head sculpture, eye and ocelli sizes. The worker, queen, and male of C. sauteri, and the worker of C. costatus are here redescribed with the first provision of COI DNA barcode data. In addition, C. merimbunensis Yamada & Eguchi sp. nov. is described from Brunei based on workers and males from a single colony. A key to valid Chrysapace species is also provided.

scholarly journals A new species of Novastoa Finlay, 1926 (Mollusca: Gastropoda: Vermetidae) from coral reefs of the Pacific Ocean

2017 ◽  
Author(s):  
Stefano Schiaparelli ◽  
Rüdiger Bieler ◽  
Rosemary E. Golding ◽  
Timothy A. Rawlings ◽  
Timothy M. Collins
Keyword(s):  
New Species ◽  
Current Knowledge ◽  
Morphological Variability ◽  
Single Species ◽  
French Polynesia ◽  
Molecular Data ◽  
Genetic Connectivity ◽  
The Pacific ◽  
Color Differences ◽  
A New Species

A new species of vermetid gastropod belonging to the genus Novastoa Finlay, 1926, N. rapaitiensis sp. nov., is described from French Polynesia and the Great Barrier Reef, based on morpho-anatomical and molecular data, increasing the recognized extant diversity of this genus from five to six species. The new species is characterized by the largest operculum in the genus to date, with a conspicuous spindle-shaped mammilla that readily distinguishes this species from its congeners. Based on available data, members of the studied populations of N. rapaitiensis sp. nov. are interpreted as a single species, although slight morphological and color differences exist between localities separated by up to 7000 km. The larval development of N. rapaitiensis sp. nov. is inferred to be direct, raising new questions about genetic connectivity and dispersal trajectories across a vast geographic range. Additional molecular data may prove helpful in refining our current knowledge on the morphological variability within this species and verifying the degree of cryptic diversity in this genus.

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