Morphological Variability and Molecular Identification ofUncinariaspp. (Nematoda: Ancylostomatidae) from Grizzly and Black Bears: New Species or Phenotypic Plasticity?

2015 ◽  
Vol 101 (2) ◽  
pp. 182-192 ◽  
Author(s):  
Stefano Catalano ◽  
Manigandan Lejeune ◽  
Bradley van Paridon ◽  
Christopher A. Pagan ◽  
James D. Wasmuth ◽  
...  
2020 ◽  
Vol 724 ◽  
pp. 93-108
Author(s):  
N Ramya ◽  
Charles Bartlett ◽  
Naresh M. Meshram

The genus Parasogata Zhou, Yang & Chen, 2018 is here reported from India represented by the new species Parasogata sexpartita sp. nov. collected in a recent exploration and survey of delphacids from Nagaland in northeastern India. A second species of Eoeurysa Muir, 1913 from India, the new species Eoeurysa sagittaria sp. nov., was found in Rampur, Una, Himachal Pradesh. Both new species are described with illustrations, and a molecular identification is given with the mtCOI gene sequence. A modified key to species of the genera is also provided.


Zootaxa ◽  
2016 ◽  
Vol 4200 (2) ◽  
pp. 327 ◽  
Author(s):  
PEDRO S. R. ROMANO

Pelomedusoides is the most diverse clade of side-necked turtles and there is an extensive fossil record (de Broin, 1988; Lapparent de Broin, 2000; Gaffney et al., 2006, 2011) that dates back at least to the Barremian (Lower Cretaceous) (Romano et al., 2014). Its large fossil record evidences a greater diversity in the past, particularly at the end of the Mesozoic, and exhibits a good sampling of species that are represented by skull material (Gaffney et al., 2006, 2011). As a consequence, the most complete and recent phylogenetic hypotheses for this clade (e.g. Romano et al., 2014; Cadena, 2015) are based on matrices comprising a great amount of cranial characters derived largely from Gaffney et al. (2006, 2011). In addition, it is well established that shell characters show a lot of phenotypic plasticity, even in the fossil species (Romano, 2008; Gaffney et al., 2006, 2011). In most cases it consequently is not justified to rely on “diagnostic features” of poorly informative shell-only material for describing a new species. Because of that, most authors remark new morphotypes in the literature when such aberrant specimens are recovered, but do not make any nomenclatural act by proposing a new yet poorly supported species (e.g. Romano et al., 2013; Ferreira & Langer, 2013; Menegazzo et al., 2015). Unfortunately, such a supposedly new bothremydid turtle (Pleurodira: Bothremydidae) from the Early Paleocene of Brazil was recently described based on poorly diagnostic remains (Carvalho et al., 2016; hereafter CGB, for the authors initials) and a correction of this unfounded nomenclatural act is required. In addition I present some comments on shell only material from Brazil in order to guide splitter-taxonomists to stop describing poorly preserved fossil specimens as new species. 


Zootaxa ◽  
2019 ◽  
Vol 4711 (1) ◽  
pp. 140-156
Author(s):  
ANDRÉ SILVA ROZA ◽  
JOSÉ RICARDO MIRAS MERMUDES

Recent efforts with Malaise trap sampling in Serra dos Órgãos and Itatiaia, in Brazil, allowed us to identify and describe three new species from the first locality: Hylotribus humeralis sp. nov., H. nanico sp. nov. and H. queirozi sp. nov. New records of H. plaumanni Queiroz & Mermudes, 2014 for both localities and H. sublimis Queiroz & Mermudes, 2014 for the latter are also presented. We also describe morphological variability including aptery and microptery, and male genitalia, for H. plaumanni. We produce a new key to the species and discuss the species relationships and wing variation for the genus. 


Mycologia ◽  
2018 ◽  
Vol 110 (4) ◽  
pp. 677-691 ◽  
Author(s):  
Xu Lu ◽  
Kari Steffen ◽  
Hai-Sheng Yuan

2019 ◽  
Vol 156 (9) ◽  
pp. 1618-1622 ◽  
Author(s):  
Romain Vullo ◽  
Nathalie Bardet ◽  
Emmanuel Gheerbrant ◽  
Nour-Eddine Jalil

AbstractA pycnodont premaxilla bearing a large incisiform tooth with an unusual crown morphology is described from the Palaeocene (Thanetian) phosphate deposits of Morocco. This peculiar tooth shows a broad, fan-shaped multicuspid crown with nine cusps, well adapted for benthic macroalgal scraping. This morph, assigned to a new species of Pycnodus (P. multicuspidatus sp. nov.), emphasizes the phenotypic plasticity of the group and documents an additional trophic specialization among Palaeogene pycnodontiform fishes. In the post-K/Pg boundary marine ecosystem of the Ouled Abdoun Basin, P. multicuspidatus sp. nov. may have opportunistically replaced Maastrichtian fish taxa with a similar front dentition and feeding behaviour, such as the putative specialized pycnodontiforms Stephanodus and Hadrodus.


2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Kalyan Halder ◽  
Piyali Sinha

The cerithioids are a diverse group of gastropods found globally as fossil and living animals during the Cenozoic Era. Their systematics is riddled with problems stemming from large morphological variability, homoplasy, and wide geographical distribution. Six cerithioid species are described here from the lower Middle Eocene of Kutch, Gujarat, western India. All but two are new species. They are Palmerella kutchensis, Tenagodus? sowerbyi, Potamides archiaci, and Cerithium harudiensis. The rest are new records from Kutch and were known only from Pakistan. A palaeobiogeographical review based on major published records of benthic molluscs from Pakistan reveals strong endemism. The cerithioid faunas from different parts of Pakistan and this report from Kutch also show strong endemism and often quite localized development. It is argued here that unhindered faunal mixing was not possible in this province since these newly evolved basins were restricted in nature in their Lower Cenozoic history.


Phytotaxa ◽  
2020 ◽  
Vol 437 (2) ◽  
pp. 73-96
Author(s):  
DANIEL C. THOMAS ◽  
WISNU H. ARDI

The diversity of the Begonia flora of the southwestern arm of Sulawesi and the adjacent Selayar Islands, South Sulawesi province, Indonesia, is reassessed, and distribution maps, provisional IUCN conservation category assessments, and an identification key to 14 recognised species are provided. One new species from the Selayar Islands, Begonia enoplocampa, is described and a photo plate is presented. This species is the first record of Begonia section Jackia in South Sulawesi province. Newly available material allowed a reassessment of the morphological variability of several species that were originally described from very limited material. Resulting revised descriptions and photo plates of Begonia comestibilis, B. hooveriana, B. ozotothrix, B. prionota and B. siccacaudata are presented. Begonia hooveriana is lectotypified.


Phytotaxa ◽  
2020 ◽  
Vol 438 (2) ◽  
pp. 130-140
Author(s):  
ESMAEIL HASHEMLOU ◽  
YOUBERT GHOSTA ◽  
ALIREZA POURSAFAR ◽  
RAZMIG AZIZI

Alternaria section Panax currently includes seven species which are characterized by simple or branched and short to moderately long primary conidiophores as well as by solitary to short simple or branched chains of conidia with moderate to relatively long secondary conidiophores. Two species within the section have been reported to have sexual morphs. During the study of fungi on overwintered stems of Serratula coriacea Fisch. & C.A.Mey. (Asteraceae) from different regions of Urmia, West Azarbaijan Province, Iran, 26 isolates (16 from conidia and 10 from single ascospores) representing Alternaria characteristics were isolated and studied taxonomically. All the studied isolates formed sexual morph on PDA, PCA, V8–A, and HA media after 2 months incubation in the dark at 4 ºC and fully matured after 3 months. Based on morphological characteristics of sexual and asexual morphs and multiple gene sequences analyses (ITS-rDNA, GAPDH, RPB2 and TEF), the newly studied isolates represented a new species in Alternaria section Panax, which is described and illustrated here as Alternaria hedjaroudei. Alternaria hedjaroudei is phylogenetically close to A. avenicola, A. calycipyricola and A. photistica but it can be distinguished morphologically based on the formation of short chains of conidia (2–3 in a chain), absence of chlamydospores, smaller conidia size, relatively short secondary conidiophores, and fewer transverse septa in mature ascospores. Detailed morphological comparisons with other species in the section Panax are provided.


2023 ◽  
Vol 83 ◽  
Author(s):  
M. Idnan ◽  
A. Javid ◽  
M. Tayyab ◽  
A. Hussain ◽  
S. Mansoor ◽  
...  

Abstract A total of 10 specimens were captured from selected sites of Bajaur Agency FATA, Pakistan using mist nets. The captured specimens were morphologically identified and various morphometric measurements were taken. The head and Body length (HB) of Pipistrellus coromondra and Pipistrellus kuhlii lepidus (n=10) was 43±0.11 mm and 45±1.1 respectively. Morphologically identified Pipistrellus kuhlii confirmed as Pipistrellus kuhlii lepidus based on 16S rRNA sequences. The DNA sequences were submitted to GenBank and accession numbers were obtained (MN 719478 and MT430902). The available 16S rRNA gene sequences of Pipistrellus coromondra and Pipistrellus kuhlii lepidus were retrieved from NCBI and incorporated in N-J tree analysis. Overall, the interspecific genetic variations among Pipistrellus coromondra and Pipistrellus kuhlii lepidus were 8% and 1% respectively. In our recommendation, a comprehensive molecular identification of bats is need of hour to report more cryptic and new species from Pakistan.


2013 ◽  
Vol 8 (1) ◽  
pp. 1934578X1300800
Author(s):  
Fatima Ain-Lhout ◽  
María Zunzunegui ◽  
Mari Cruz Díaz Barradas ◽  
Juan Jáuregui ◽  
Tarik Tagma ◽  
...  

The main objective of this paper was to look into the morphological differentiation patterns and phenotypic plasticity in four populations of Argania spinosa with environmentally contrasted conditions. Mean response, magnitude and pattern of morphological intra- and inter-population plasticity indexes were measured and analyzed in order to identify which characters contribute the most to the acclimation of this species. Populations growing in the ecological optimum of the species presented the lowest plasticity, while those growing in the most stressed habitats showed an increased morphological variability. The study of four populations showed that human pressure seems to play an important function in the regulation of morphological characters. However, climatic conditions seem to play a significant role in the increase of morphological plasticity.


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