Zoologischer Anzeiger最新文献

{"title":"The digestive system of the Arumatia dubia (Phasmatodea: Diapheromeridae): a morpho-histology characterization","authors":"Giovana Gomes Ferreira Matos ,&nbsp;Matheus Froes Caetano de Castro ,&nbsp;Elton Luiz Scudeler ,&nbsp;Satiko Nanya ,&nbsp;Bruno Vinícius Daquila ,&nbsp;Helio Conte","doi":"10.1016/j.jcz.2025.12.004","DOIUrl":"10.1016/j.jcz.2025.12.004","url":null,"abstract":"<div><div>Stick insects are herbivorous animals found in tropical, subtropical or temperate regions worldwide. Their digestive system is typically tubular, divided into regions with subregions that can vary among species. <em>Arumatia dubia</em> (Phasmatodea: Diapheromeridae) is a species that has undergone several taxonomic changes based on recent studies of external morphology, but morpho-histological analyses of internal organs, such as the digestive system, can contribute with identification to these and other Phasmatodea species. This study aimed to describe the digestive system of third instar <em>A. dubia</em> nymphs, using histochemical techniques and scanning electron microscopy. The digestive system of <em>A. dubia</em> consists of three regions and their subregions: foregut (esophagus and crop), midgut (anterior and posterior), and hindgut (ileum and rectum). The foregut has a simple epithelium covered by the tunica intima, and externally, surrounded by muscle fibers. The midgut features columnar cells with a brush border and regenerative cells. Malpighian tubules originate in the ileum (hindgut) and have an excretory function. This study provides detailed morpho-histological data on third instar <em>A. dubia</em> gut, contributing important information about the morphology and histology of the digestive system of this species.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Pages 1-5"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145771908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Pseudonapomyza Hendel (Diptera: Agromyzidae: Phytomyzinae) of Ukraine with the description of two new species and updated world checklist","authors":"Yuliia Guglya","doi":"10.1016/j.jcz.2026.01.006","DOIUrl":"10.1016/j.jcz.2026.01.006","url":null,"abstract":"<div><div>Eight species of <em>Pseudonapomyza</em> Hendel were previously listed for Ukraine including <em>Pseudonapomyza istrensis</em> Zlobin and <em>P. odessae</em> Černý which was described from S. Ukraine. During this investigation three species were added to the list and two new species, <em>P. conica</em> sp. nov. and <em>P. creta</em> sp. nov., were described. COI sequences of ten species was analyzed and posted in GenBank and BOLD Systems databases. Key to all thirteen Ukrainian species (including females) is composed and illustrated with heads, wings, male and female genitalia. Additionally updated checklist of all worldwide species with hosts and distribution data is provided.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Pages 262-285"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Phylogenetic position of Setopus (Gastrotricha, Paucitubulatina) among planktonic Gastrotricha, with the description of a new species” [Zool. Anz. (2026) 248-261]","authors":"Francesco Saponi ,&nbsp;Agata Cesaretti ,&nbsp;Anush Kosakyan ,&nbsp;Valentina Serra ,&nbsp;M. Antonio Todaro","doi":"10.1016/j.jcz.2026.02.004","DOIUrl":"10.1016/j.jcz.2026.02.004","url":null,"abstract":"","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Page 333"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prenatal and perinatal cranial ontogeny in Dasypus hybridus (Xenarthra, Cingulata): a precocial armadillo?","authors":"Guadalupe Rocío Sánchez-Sánchez ,&nbsp;Fernando Carlos Galliari ,&nbsp;Alfredo Armando Carlini","doi":"10.1016/j.jcz.2025.12.007","DOIUrl":"10.1016/j.jcz.2025.12.007","url":null,"abstract":"<div><div>During cranial development, ossification centers appear sequentially, either through chondral or membranous processes. Birth represents a critical transition to life into a new environment, involving a progressive reduction in maternal dependence and exhibiting varying degrees of neonatal maturity, from altricial to precocial. Twenty-five prenatal and fourteen postnatal specimens of <em>Dasypus hybridus</em> (Xenarthra, Mammalia) were processed using an enzymatic clearing and double-staining technique, with Alcian Blue to identify cartilage and Alizarin Red to reveal ossifications. Using Total Cranial Length (TCL) as a proxy, eight prenatal cranial ontogenetic stages and three postnatal stages, spanning from two to thirty days of age, were identified. The first ossification centers to appear are those of the facial region, followed by the vault and the base of the skull, with the ethmoid complex being the last to ossify. The cranial, postcranial, and integumentary skeletal maturity data presented here suggest that <em>D. hybridus</em> is relatively precocial compared to other armadillos, such as <em>Chaetophractus villosus</em> and <em>Chaetophractus vellerosus</em>, which are positioned further along the altricial spectrum”</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Pages 38-61"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145841636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Micro-CT cranial anatomy and phylogenetic context of palatal characters in arvicoline rodents (Cricetidae)","authors":"Leonid L. Voyta ,&nbsp;Daniel A. Melnikov ,&nbsp;Lyudmila Yu. Kryuchkova","doi":"10.1016/j.jcz.2026.02.002","DOIUrl":"10.1016/j.jcz.2026.02.002","url":null,"abstract":"<div><div>This study combines high-resolution micro-CT reconstructions with a phylogenetically explicit analysis of the palato-spheno-pterygoid (PSP) complex in 33 species from 19 arvicoline genera (ca. 60% of the recent generic diversity). We re-describe and re-homologise palatal and sphenoidal structures and formalise four topological morphotypes (AA, DC, DM, DL) that summarise the relationship between the posterior palatine margin and the perpendicular lamina of the palate. Discrete PSP characters alone prove insufficient for capturing intra- and inter-tribal variation. Mapping morphotypes onto a ddRADseq phylogeny and quantifying multivariate signal reveal a weak global signature (<em>K-mult</em> = 0.22) with heterogeneous, clade-specific distribution. To expose that heterogeneity we adapt P. David Polly's matrix formulation of Brownian-motion-weighted sums of squares (<em>SS</em>) and mean squares (<em>MS</em>), deriving a clade-centred index, <em>K-local-n</em>. This new measure pinpoints hotspots of elevated shape–phylogeny congruence (<em>K-local-n</em> ≤ 0.42), detects at least three independent origins of the ‘derived-microtin’ (DM) morphotype from disparate Pliocene ancestors, and clarifies the influence of long branches on phylogenetic signal intensity. Our framework quantitatively explains the clustering of disparate (odd) phenotypes within well-supported clades and provides a basis for integrative interpretations of cranial evolution in rapidly radiating mammals.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Pages 440-460"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revisiting the Brazilian giant cockroaches of the genus Bionoblatta (Blattodea: Blaberidae): taxonomic revision with description of Bionoblatta marcelli sp. nov. from Serra do Caraça, a mountain range in Minas Gerais State","authors":"Leonardo Polizeli ,&nbsp;Ângelo Parise Pinto","doi":"10.1016/j.jcz.2025.12.003","DOIUrl":"10.1016/j.jcz.2025.12.003","url":null,"abstract":"<div><div><em>Bionoblatta</em> Rehn, 1940 is allocated in the poorly known and intriguing Brachycolini, a Neotropical tribe with eight genera and 44 blaberid species. This outstanding genus of cockroaches encompasses mostly montane and brachypterous species, all endemic to Brazil. Nevertheless, they are moderate sized and noticeable species due to coloration, pronotum shape, and callosities on the abdomen, all taxonomic knowledge is based on a small number of males. In this study, we revisit the taxonomy of <em>Bionoblatta</em>, based on a comparative morphological analysis, providing a comprehensive overview of the genus. Our results support <em>Bionoblatta</em> as a taxonomically distinguishable genus comprising six species with a distribution range exclusively in southeastern Brazil. <em>Bionoblatta marcelli</em> <strong>sp. nov.</strong> is herein introduced (holotype male deposited in DZUP: Brazil, Minas Gerais State, Catas Altas) based on males, females, and nymphs. A diagnosis, notes on morphology and natural history, photographs of type and non-type specimens, a distribution map, and an identification key are provided for the species. We hope this study inspires further investigations into this fascinating group of cockroaches, deepening our understanding of their evolutionary history. Future research could explore their phylogeny and biogeography, habitat and social behavior, as well as intra- and interspecific morphological variations.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Pages 85-103"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145885826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anatomy and histology of the ovaries and male reproductive tract of Atopozelus opsimus (Heteroptera: Reduviidae)","authors":"Bruna Silva Lisboa ,&nbsp;José Eduardo Serrão ,&nbsp;Jamile Fernanda Silva Cossolin ,&nbsp;Germano Leão Demolin Leite ,&nbsp;José Cola Zanuncio ,&nbsp;Sebastião Lourenço de Assis Júnior ,&nbsp;Pedro Guilherme Lemes","doi":"10.1016/j.jcz.2026.02.009","DOIUrl":"10.1016/j.jcz.2026.02.009","url":null,"abstract":"<div><div><em>Atopozelus opsimus</em> Elkins, 1954 (Heteroptera: Reduviidae), native from Brazil, prey forest pests but its morphology needs further studies. The aim was to describe the anatomy and histology of the female ovaries and the male reproductive tract of <em>A. opsimus</em>, with emphasis on gamete formation. The organs were dissected and analyzed with light microscopy. The females have a pair of meroistic-telotrophic ovaries with seven ovarioles with oocytes in different developmental stages, two lateral oviducts, a common oviduct, two yellow spermathecae, and a genital chamber. The male reproductive tract consists of a pair of testes with seven follicles each lined by a transparent peritoneal sheath and continuously spermatozoa production; two deferent ducts with yellow seminal vesicles; a pair of ectadenial accessory glands; and an ejaculatory duct. The ovaries and male reproductive tract indicate characteristics of <em>A. opsimus</em> similar to a common ancestor of Heteroptera.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Pages 432-439"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphometric and genetic variation of six soldierfish species (genus Myripristis, family: Holocentridae) harvested in Aceh Besar waters, Indonesia","authors":"Nadya Tirta ,&nbsp;Essy Harnelly ,&nbsp;Rania Feranita Fachri ,&nbsp;Putri Khairani Amalia Siregar ,&nbsp;Nanda Muhammad Razi ,&nbsp;Nanda Ulfa Khaira ,&nbsp;Mutia Ramadhaniaty ,&nbsp;Sri Riska Rahayu ,&nbsp;Nurlita Putri Anggraini ,&nbsp;Raissha Amanda Siregar ,&nbsp;Adrian Damora ,&nbsp;Nur Fadli","doi":"10.1016/j.jcz.2026.01.004","DOIUrl":"10.1016/j.jcz.2026.01.004","url":null,"abstract":"<div><div>Soldierfish, a group of commercially important coral reef fishes from the genus <em>Myripristis</em>, are commonly caught by local fishermen in the waters of Aceh Besar, Indonesia. Despite their economic importance, limited information exists regarding their bioecological characteristics, particularly genetic and morphometric traits. This study aimed to investigate morphological and genetic variation among six <em>Myripristis</em> species: <em>M. adusta</em>, <em>M. berndti</em>, <em>M. kuntee</em>, <em>M. murdjan</em>, <em>M. violacea</em>, and <em>M. vittata</em> harvested in Aceh Besar waters, Indonesia. The research was conducted from August 2024 to March 2025. Fish samples were collected from five landing sites in Aceh Besar District, namely Pulo Aceh, Ujung Pancu, Lam Awe, Lhokseudu, and Lampulo. A total of 360 specimens were measured for morphometric analysis, with 60 individuals representing each species. Additionally, five individuals from each species were randomly selected for DNA analysis based on the cytochrome oxidase subunit I (COI) gene. Data were analyzed using ANOVA and Discriminant Function Analysis (DFA). A Mantel test was performed to assess the correlation between genetic and morphometric distance matrices. Morphological analysis identified head length (HL) and eye diameter (ED) as key discriminating traits among species. Cross-validation of the DFA revealed a high degree of similarity between <em>M. adusta</em> and <em>M. violacea</em>. Genetic analysis validated the separation into six distinct species. The smallest genetic distance was observed between <em>M. adusta</em> and <em>M. violacea</em> (4.2 %), while the greatest distance was between <em>M. murdjan</em> and <em>M. kuntee</em> (8.5 %). A total of 23 haplotypes were identified across six species, the highest number of haplotypes in <em>M. kuntee</em> and <em>M. murdjan</em> each exhibited five haplotypes. Correlation analysis revealed no significant relationship between morphometric and genetic variation (r = 0.173; p &gt; 0.05). These findings indicate that genetic approaches provide an effective tool for validating species-level taxonomic status within the genus <em>Myripristis</em>.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Pages 136-148"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revision of the species composition in the genus Siphonolaimus de Man, 1893 (Nematoda, Chromadoria, Monhysterida) together with description of two new and one known species","authors":"Alexei V. Tchesunov ,&nbsp;Sergei A. Subbotin ,&nbsp;Vladimir V. Yushin","doi":"10.1016/j.jcz.2026.02.007","DOIUrl":"10.1016/j.jcz.2026.02.007","url":null,"abstract":"<div><div>A review of the genus <em>Siphonolaimus</em> together with descriptions and a redescription of two new and one known species are given. New genus diagnosis is emended. Main morphometric and morphological characters differentiating <em>Siphonolaimus</em> species are compiled in the table that can ease species identification. Full redescription of <em>Siphonolaimus ewensis</em> Warwick and Platt, 1973 is given; the species has been discovered initially from a sandy beach of Scotland and now found in upper sublittoral sandy sediment of the White Sea, North Russia. Two new <em>Siphonolaimus</em> species are found in the same locality at 30 m depth in silty sediment in the Sea of Japan. <em>Siphonolaimus gracilis</em> sp. n. is characterized with very short anterior and subcephalic setae and combination of other morphometric values. <em>Siphonolaimus corpulentus</em> sp. n. is close to <em>S. gracilis</em> sp. n. and differs with stout body and wider amphideal fovea. Two new species are featured by high variability of submedian outer labial setae length; females of all three species studied show high variability in body length and related body shape indices due to frequent loss of tail or hind body part. New species were characterized using sequences of partial 18S rRNA, 28S, ITS rRNA and <em>COI</em> genes. Phylogenetic relationships of the genus <em>Siphonolaimus</em> with other Siphonolaimidae and related taxa are presented and discussed. Phylogenetic analysis of the D2-D3 of 28S rRNA sequences placed family Siphonolaimoidae; within the crown of the family Linhomoeidae. 18S rRNA data do not support position of <em>Astomonema</em> within Siphonolaimidae but places the genus in the family Linhomoeidae. <em>Desmolaimus magnus</em> is considered here based on morphology and molecular study as a representative of the genus <em>Eleutherolaimus</em>: <em>Eleutherolaimus magnus</em> comb. n.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Pages 413-431"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A three-species problem: a further example of homeomorphy in freshwater Ostracoda (Crustacea), with the description of a new genus and new species from a Brazilian river","authors":"Kevin Galvão Correia ,&nbsp;Nadiny Martins Almeida ,&nbsp;Koen Martens ,&nbsp;Janet Higuti","doi":"10.1016/j.jcz.2025.10.009","DOIUrl":"10.1016/j.jcz.2025.10.009","url":null,"abstract":"<div><div>Homeomorphy is common in the valves and carapaces of Ostracoda. One of the best-known examples in non-marine ostracods is the morphological similarity in the extreme armature of anterior and posterior spines on the left valve in both <em>Strandesia bicornuta</em> Hartmann, 1964 from India and in <em>Rudjakoviella prolongata</em> (Triebel, 1962) Malz, 1973 from Margarita Island (West Indies). Here, we describe a third representative with such armature, <em>Pseudocypricercus bonito</em> gen. nov. spec. nov. from Brazil. These new taxa belong to the Cypricercinae McKenzie, 1971, which is characterized by the presence of the Triebel's loop in the middle of the attachment of the caudal ramus. The main characteristics of <em>Pseudocypricercus</em> gen. nov. are the shape and length of the β seta on the mandibular palp, which is slender and elongated, compared to other genera of this subfamily; the absence of seta d on the first thoracopod, and the absence of seta d2 on the second thoracopod, amongst other features. <em>Pseudocypricercus bonito</em> gen. nov. spec. nov. also has large anterior and posterior spines on the left valve as well as a posterior spine and the anterior blunt protrusion on the right valve. In addition, both the mandibular coxa and the third endite of the maxillula have remarkable large fist-like setae, while the male right prehensive palp has a perpendicularly positioned second segment. The similar armature on left valve and right valve in this taxon makes the homeomorphy known from <em>R. prolongata</em> and <em>S. bicornuta</em> into a “three-species problem”.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"321 ","pages":"Pages 461-480"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}