Vertebrate Zoology最新文献_第5页

The quadrate-metapterygoid fenestra of otophysan fishes, its development and homology 耳膜鱼方形化聚酯开窗及其发育与同源性

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2023-01-23 DOI: 10.3897/vz.73.e97922

R. Britz, G. Mattox, K. Conway

{"title":"The quadrate-metapterygoid fenestra of otophysan fishes, its development and homology","authors":"R. Britz, G. Mattox, K. Conway","doi":"10.3897/vz.73.e97922","DOIUrl":"https://doi.org/10.3897/vz.73.e97922","url":null,"abstract":"We compare the ontogeny of the hyopalatine arch in representatives of the Otophysi to shed light on the homology of the so-called quadrate-metapterygoid fenestra, QMF. Described initially as a character of characiforms (tetras and allies), presence of a QMF has also been reported for cobitid loaches and a handful of cyprinids among cypriniforms, as well as for a few clupeoids. In characiforms the QMF is either already present as an opening in the palatoquadrate cartilage in the earliest developmental stages we studied, or it forms later in the cartilage by resorption of chondrocytes. Some characiforms may lack a QMF during all stages of development. In cobitids the so-called QMF develops after the bones have ossified and forms mainly by resorption of bone tissue of quadrate and metapterygoid. Previous reports of a QMF in cyprinids are erroneous and the opening in this area forms by spatial separation of the quadrate and metapterygoid from the symplectic and not by the formation of a fenestra in the palatoquadrate cartilage. We suggest referring to this type as a quadrate-metapterygoid gap, QMG. Presence of a QMF in the palatoquadrate cartilage is a putative synapomorphy of characiforms. Development of a QMF by bone resorption in the ossified palatoquadrate is a putative synapomorphy of Cobitidae. A QMG is variously present and developed to different degrees in opsariichthyine and danionine cyprinids. A QMF is also present in several clupeoids and deserves further study.","PeriodicalId":51290,"journal":{"name":"Vertebrate Zoology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43476468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Allometric analysis of sexual dimorphism and morphological variation in two chromosome races of the Sceloporus grammicus complex (Squamata: Phrynosomatidae) from Mexico 墨西哥克氏锥虫复合体两个染色体小种两性异形和形态变异的异速分析

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2023-01-20 DOI: 10.3897/vz.73.e94004

Abraham Lozano, Jack W. Sites, Jr, A. Ramírez‐Bautista, Jonathon C. Marshall, N. Pavón, Raciel Cruz‐Elizalde

{"title":"Allometric analysis of sexual dimorphism and morphological variation in two chromosome races of the Sceloporus grammicus complex (Squamata: Phrynosomatidae) from Mexico","authors":"Abraham Lozano, Jack W. Sites, Jr, A. Ramírez‐Bautista, Jonathon C. Marshall, N. Pavón, Raciel Cruz‐Elizalde","doi":"10.3897/vz.73.e94004","DOIUrl":"https://doi.org/10.3897/vz.73.e94004","url":null,"abstract":"Sexual dimorphism is a widespread feature in the Animal Kingdom. In lizards of the Sceloporus grammicus complex, studies of sexual dimorphism that analyze the allometric trajectories of body traits remain unexplored. Here we investigate sexual dimorphism in key phenotypic traits, including body size (snout-vent length, SVL) as well as head length (HL), head width (HW), and forearm length (FL). We use an allometric approach to detect differences in scale relationships among body parts in the S. grammicus complex in Mexico. We focus on two chromosomal races within this complex, F5 (2n = 34) and FM2 (2n = 46). In the complex, we found that males are larger than females in all morphological variables, and this pattern was confirmed in both races. We determined negative allometric trajectories (SVLvs.HL and HW), isometry (SVLvs.FL) and intersexual differences in the slopes of the SVLvs.HL and HW; the males showed steeper slopes. Thus, the growth of the head is more pronounced in males than females. Additionally, we found between-race differences in these trajectories (SVLvs.FL) and in all morphological variables (F5 lizards are larger than those of the FM2 race), which correlate with their chromosomal divergence. We discuss biological implications of our findings in relation to sexual selection and natural selection.","PeriodicalId":51290,"journal":{"name":"Vertebrate Zoology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49128012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the taxonomic validity of Boiga whitakeri Ganesh et al., 2021 with new insights on Boiga dightoni (Boulenger, 1894) (Reptilia: Squamata: Colubridae) Boiga whitakeri Ganesh et al.， 2021的分类有效性与Boiga dightoni (Boulenger, 1894)的新见解(爬行纲:鳞目:鞘翅目)

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2023-01-18 DOI: 10.3897/vz.73.e97002

S. Narayanan, Sandeep Das, Y. Anvar, F. Tillack, P. Mohapatra, D. Gower, K. Rajkumar, V. Deepak

{"title":"On the taxonomic validity of Boiga whitakeri Ganesh et al., 2021 with new insights on Boiga dightoni (Boulenger, 1894) (Reptilia: Squamata: Colubridae)","authors":"S. Narayanan, Sandeep Das, Y. Anvar, F. Tillack, P. Mohapatra, D. Gower, K. Rajkumar, V. Deepak","doi":"10.3897/vz.73.e97002","DOIUrl":"https://doi.org/10.3897/vz.73.e97002","url":null,"abstract":"Colour polymorphism has been previously reported in several colubrid snakes including Boiga spp. In this paper, we report colour variations within the poorly known southern Indian Boiga dightoni, provide the first molecular data for this species, from two localities (including the type locality) and compare them with data from other congeners. Additionally, we provide detailed dentition and hemipenis descriptions for B. dightoni. Molecular data for B. dightoni show very little difference (0.2–0.4% 16S; 0.9–1.2% cyt b) to the recently described Boiga whitakeri, also from southern India. We have re-examined and present new information on the pholidosis of the type specimens of B. whitakeri and reconsider its taxonomic status. On the basis of molecular data and overlapping morphological characteristics, we argue that Boiga whitakeri and Boiga dightoni are conspecific, and place B. whitakeri under the subjective synonymy of the latter. Furthermore, we show that colour polymorphism in B. dightoni is a gender-independent character and that both colour morphs are found in high as well as low elevations and partly in sympatry. A revised key to the Boiga ceylonensis complex is provided.","PeriodicalId":51290,"journal":{"name":"Vertebrate Zoology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46421751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Argentinean Myotis (Chiroptera, Vespertilionidae), including the description of a new species from the Yungas 阿根廷小蛾属(翼翅目，小蛾科)，包括一新种的描述

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2022-12-14 DOI: 10.3897/vz.72.e90958

R. Novaes, Vinícius C. Cláudio, M. Díaz, D. E. Wilson, M. Weksler, R. Moratelli

引用次数: 1

A multitude of spots! Five new microendemic species of the Cnemaspis gracilis group (Squamata: Gekkonidae) from massifs in the Shevaroy landscape, Tamil Nadu, India 好多地方！印度泰米尔纳德邦Shevaroy地区山丘上细刺蛙群的五个新的微生态系统物种（Squamata:Gekkonidae）

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2022-12-07 DOI: 10.3897/vz.72.e94799

Ishan Agarwal, T. Thackeray, Akshay Khandekar

{"title":"A multitude of spots! Five new microendemic species of the Cnemaspis gracilis group (Squamata: Gekkonidae) from massifs in the Shevaroy landscape, Tamil Nadu, India","authors":"Ishan Agarwal, T. Thackeray, Akshay Khandekar","doi":"10.3897/vz.72.e94799","DOIUrl":"https://doi.org/10.3897/vz.72.e94799","url":null,"abstract":"South Asian Cnemaspis are one of the most diverse clades of gekkonids in South Asia with their highest diversity in the Western Ghats and Sri Lanka. These geckos include only a few nocturnal species and are largely diurnal or cathemeral and restricted to relatively cool habitats. One of the prominently diurnal subgroups in South Asian Cnemaspis is the bangara clade, which includes six species distributed in southern India on the eastern slopes of the Western Ghats, the southern Eastern Ghats and Palghat Gap. In this paper, we describe five more species of the bangara clade from the Shevaroyan landscape, including three from Kollimalai and one each from Yercaud and Pachaimalai, all in Tamil Nadu. These new species show 4.6–19.7 % uncorrected sequence divergence on the mitochondrial ND2 gene from each other and known species of the bangara clade and are morphologically diagnosable in body size, the number of paravertebral tubercles between limb insertions, the number of dorsal tubercle rows, the number of ventral scale rows across the belly, the number of femoral and precloacal pores and poreless scales separating these series, and aspects of colouration. The discovery of these five new species adds to the growing discoveries of cool-adapted species in southern India outside the Western Ghats and highlights the role of sky-islands in diversification. The Shevaroyan landscape shows high levels of microendemism with eight species distributed in an area of < 2000 km2, and all these species restricted to much smaller areas of actual distribution. With an area of < 500 km2 respectively, the massif of Pachaimalai has a single endemic and the massifs of Yercaud and Kollimalai have three endemic Cnemaspis species each.","PeriodicalId":51290,"journal":{"name":"Vertebrate Zoology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44063103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Vergleichende Entwicklungsgeschichte — A Festschrift on the occasion of the 80th birthday of Prof. Dr. Wolfgang Maier, Tübingen Vergleichende Entwicklungsgeschichte Tübingen Wolfgang Maier教授博士80岁生日庆典

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2022-12-05 DOI: 10.3897/vz.72.e94711

I. Werneburg, Irina Ruf

{"title":"Vergleichende Entwicklungsgeschichte — A Festschrift on the occasion of the 80th birthday of Prof. Dr. Wolfgang Maier, Tübingen","authors":"I. Werneburg, Irina Ruf","doi":"10.3897/vz.72.e94711","DOIUrl":"https://doi.org/10.3897/vz.72.e94711","url":null,"abstract":"Following the traditional and holistic concept of Vergleichende Entwicklungsgeschichte, Wolfgang Maier studied different aspects of vertebrate morphology, including dentition, the locomotor apparatus, nasal and ear regions. His work comprises investigations on pre- to postnatal stages of extant species as well as fossils and is mainly based on histological serial sections, but also on µCT data in recent years. This resulted in an integrative research agenda on the evolutionary biology of mammals and other vertebrates. Most of his studies are designed around the interrelationship of ontogenetic and functional adaptations and evolutionary transformations. The present collection in Vertebrate Zoology collates a series of research articles related to and in honor of Wolfgang Maier’s work. Invited colleagues of Maier provide current insights to their own research, in many cases inspired by his scholarship, ranging from mammalian to reptilian and fish comparative anatomy. In total, this volume contains 19 publications. They apply modern and traditional techniques to investigate the diversity of biological form. In so doing, they integrate traditional conceptual frameworks from the earliest days of morphological research more than two centuries ago.","PeriodicalId":51290,"journal":{"name":"Vertebrate Zoology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48798780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The orbitotemporal region and the mandibular joint in the skull of shrews (Soricidae, Mammalia) 鼩头骨中的眶颞区和下颌关节（Soricidae，Mammalia）

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2022-11-29 DOI: 10.3897/vz.72.e90840

W. Maier, Adrian Tröscher, I. Ruf

{"title":"The orbitotemporal region and the mandibular joint in the skull of shrews (Soricidae, Mammalia)","authors":"W. Maier, Adrian Tröscher, I. Ruf","doi":"10.3897/vz.72.e90840","DOIUrl":"https://doi.org/10.3897/vz.72.e90840","url":null,"abstract":"Modern phylogenetics place the Soricidae (shrews) into the order Lipotyphla, which belongs to the relatively new superorder clade Laurasiatheria. Their most derived skull feature is the unusual position and shape of the jaw articulation: Whereas in all other mammals the glenoid region of the squamosum is more or less tightly attached to the otic capsule or petrosal, respectively, in the soricids it is attached to the nasal capsule. This new position of the jaw articulation becomes possible by the posterior extension of the nasal capsule and the rostral shift of the glenoid fossa. By the study of dated postnatal ontogenetic stages of Crocidura russula and Sorex araneus, we show that the glenoid part of the squamosal becomes fixed to the nasal capsule by the ossified alae orbitalis and temporalis. The ala orbitalis is displaced laterally by the expanded cupula nasi posterior; this posterior expansion is well documented by the lamina terminalis, which incorporates parts of the palatinum and alisphenoid. Both alae consist largely of ‘Zuwachsknochen’ (‘appositional bone’) and are then named orbitosphenoid and alisphenoid. By the forward move of the pars glenoidea and of the alisphenoid, the foramen lacerum medium (‘fenestra piriformis’) also expands rostrally. Functionally, the forward shift of the jaw joint helps to keep the incisal biting force high. Biomechanically the jaws can be considered as a tweezer, and the rostral position of the jaw joints makes the interorbital pillar and the shell-like walls of the facial skull a lever for the highly specialized incisal dentition.","PeriodicalId":51290,"journal":{"name":"Vertebrate Zoology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47820890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Skull variation in populations of the Indian gerbil Tatera indica (Gerbillinae, Rodentia) sampled across its broad geographic range 印度沙鼠Tatera indica(沙鼠科，啮齿目)在其广泛的地理范围内取样的种群颅骨变异

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2022-11-28 DOI: 10.3897/vz.72.e90474

Zainab Dashti, H. Alhaddad, B. H. Alhajeri

{"title":"Skull variation in populations of the Indian gerbil Tatera indica (Gerbillinae, Rodentia) sampled across its broad geographic range","authors":"Zainab Dashti, H. Alhaddad, B. H. Alhajeri","doi":"10.3897/vz.72.e90474","DOIUrl":"https://doi.org/10.3897/vz.72.e90474","url":null,"abstract":"Populations of broadly distributed species often exhibit geographic structuring, which is sometimes reflected in phenotype. The monotypic Indian gerbil (Tatera indica) is an example of a widely distributed species, with its range encompassing much of Asia. This study aims to determine if T. indica populations exhibit marked variation in skull morphology—this structure is particularly adaptable and thus could be amenable to show such variation. Furthermore, the potential drivers of skull variation are examined, including the role of climate and geography. To achieve these goals, 21 linear measurements were measured on the skulls of 509 specimens, coming from 111 different localities, across this species wide range. The specimens were then assigned into one of four broad geographic groups (≈ populations) based on their geographic proximity, and the overall and the pairwise differences in the 21 skull measurements among these groups were assessed. Specimens from Pakistan significantly differed from those belonging to the West Iran, East Iran, and India populations, which in turn did not significantly differ from each other. Pairwise bioclimatic and geographic distances between the localities explained a significant, yet small amount of variation in the measurements. Thus, while the Pakistani T. indica population was distinct in skull measurements, both climatic and non-climatic spatial factors seem not to account largely for its distinctiveness (from the other populations).","PeriodicalId":51290,"journal":{"name":"Vertebrate Zoology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44478622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new species of insular treefrog in the Litoria thesaurensis species group from the Nakanai Mountains, New Britain, Papua New Guinea 巴布亚新几内亚新不列颠Nakanai山区Litoria thesaurrensis种群岛树蛙一新种

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2022-11-22 DOI: 10.3897/vz.72.e91422

S. Richards, P. Oliver

引用次数: 0

Hidden diversity in semi-fossorial Melanesian forest snakes: A revision of the Toxicocalamus loriae complex (Squamata, Elapidae) from New Guinea 半化石美拉尼西亚森林蛇的隐藏多样性：对新几内亚毒藻复合体（Squamata，Elapidae）的修订

IF 2.1 2区生物学

Vertebrate Zoology Pub Date : 2022-11-10 DOI: 10.3897/vz.72.e89647

F. Kraus, H. Kaiser, M. O’Shea

{"title":"Hidden diversity in semi-fossorial Melanesian forest snakes: A revision of the Toxicocalamus loriae complex (Squamata, Elapidae) from New Guinea","authors":"F. Kraus, H. Kaiser, M. O’Shea","doi":"10.3897/vz.72.e89647","DOIUrl":"https://doi.org/10.3897/vz.72.e89647","url":null,"abstract":"With its conservative set of scalation characters, Toxicocalamus loriae is a morphologically confusing species to which a wide array of phenotypes has been assigned. Careful analysis of 224 museum specimens reveals that multiple distinct species remain hidden under the name T. loriae and that diagnostic, species-level differences are more nuanced in this group of snakes than among other members of the genus. Our taxonomic reassessment leads us to resurrect the species T. lamingtonicomb. nov., T. loennbergiicomb. nov., and T. nymanicomb. nov. from synonymy with T. loriae, retain only T. pratti as a synonym, and describe three new species. As a consequence, T. loriae is no longer recognized as ranging throughout the entire island of New Guinea but is instead restricted to the southern versant of the Papuan Peninsula, and T. lamingtoni and T. spilorhynchussp. nov. are species restricted to that same peninsula’s northern versant. Toxicocalamus loennbergii is known only from the type series taken on the Onin Peninsula in West Papua, Indonesia, Toxicocalamus atratussp. nov. is a high-elevation (800–2200 m) Central Highlands endemic, and T. vertebralissp. nov. ranges from the Central Highlands of Papua New Guinea eastward into the Wau area of Morobe Province. Toxicocalamus nymani inhabits a geologically more heterogenous region, occurring from the Central Highlands eastward to the Huon Peninsula, including Karkar Island, and adjacent areas of Madang Province as well as the northernmost reaches of the Papuan Peninsula. We expect that denser geographic sampling across New Guinea and focussed specimen collection of a few known populations will result in the recognition of additional species in this complex.","PeriodicalId":51290,"journal":{"name":"Vertebrate Zoology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41880638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0