scholarly journals Host relationships and geographic distribution of species of Acanthobothrium Blanchard, 1848 (Onchoproteocephalidea, Onchobothriidae) in elasmobranchs: a metadata analysis

ZooKeys ◽  
2020 ◽  
Vol 940 ◽  
pp. 1-49 ◽  
Author(s):  
Francisco Zaragoza-Tapia ◽  
Griselda Pulido-Flores ◽  
Scott L. Gardner ◽  
Scott Monks

Species of Acanthobothrium have been documented as parasites of the spiral intestine of elasmobranchs. Results of a metadata analysis indicate that 114 species of elasmobranchs have been reported as hosts of 200 species of Acanthobothrium. The metadata analysis revealed that 3.7% of species of sharks and 14.9% of species of rays that have been reported as hosts to date; some species are parasitized by more than one species of Acanthobothrium. This work provides a Category designation, as proposed by Ghoshroy and Caira (2001), for each species of Acanthobothrium. These Category designations are a tool to facilitate comparisons among members of Acanthobothrium for descriptions of new species in the future.

Parasitology ◽  
1948 ◽  
Vol 38 (4) ◽  
pp. 243-246 ◽  
Author(s):  
Frank A. Turk

Both species of tick which are described in the present paper are members of insular faunas and demonstrate remarkably well the tendency, shown by these parasites in geographical isolation, to species formation. In this connexion it is perhaps worth quoting what Cooley & Kohls (1945) say concerning this subject in their recent work on the genus Ixodes: ‘These studies’, they write on p. 1 of their introduction, ‘have revealed in considerable measure the more useful specific characters and the importance of a real appreciation of the significance of geographical range and variation in the differentiation of species.… In determination of species limits we have considered not only morphologic but also biologic factors such as host relationships and geographic distribution. No subspecies are recognized.’ There is little doubt but that geographical distribution will be found to play an almost equally important role in the genus Amblyomma.


2019 ◽  
pp. 23-36
Author(s):  
Mario. R. Cabrera

Formerly Cnemidophorus was thought to be the most speciose genus of Teiidae. This genus comprised four morphological groups that were later defined as four different genera, Ameivula, Aurivela, Cnemidophorus and Contomastix. The last appears as paraphyletic in a recent phylogenetic reconstruction based on morphology, but monophyletic in a reconstruction using molecular characters. Six species are allocated to Contomastix. One of them, C. lacertoides, having an extensive and disjunct geographic distribution in Argentina, Uruguay and Brazil. Preliminary analyses revealed morphological differences among its populations, suggesting that it is actually a complex of species. Here, we describe a new species corresponding to the Argentinian populations hitherto regarded as C. lacertoides, by integrating morphological and molecular evidence. Furthermore, we demonstrate that the presence of notched proximal margin of the tongue is a character that defines the genus Contomastix.


Zootaxa ◽  
2020 ◽  
Vol 4852 (3) ◽  
pp. 383-395
Author(s):  
RODRIGO PONCE DE LEÓN ◽  
ERICH H. RUDOLPH ◽  
ODILE VOLONTERIO

To date, only one species of Temnocephala is known from Chile, Temnocephala chilensis, and three from southern Argentina (Patagonia), namely T. chilensis, Temnocephala dionii, and Temnocephala mexicana. Here we describe a new species of Temnocephala and provide an updated description of T. chilensis based on material found on an anomuran crab (Aeglidae) from southern Chile. Additional hosts and localities are reported for both species in southern Argentina and Chile, and a diagnostic key for all species of Temnocephala hosted on Aegla and Parastacidae is included as well. In southern Chile, both T. chilensis and the new species were found on the crayfish Samastacus spinifrons and on the anomuran crabs Aegla abtao and Aegla alacalufi; in addition, the new species was found on Aegla manni, and T. chilensis on Aegla rostrata. In southern Argentina, T. chilensis and the new species were found on Aegla riolimayana and S. spinifrons. Based on their shared traits (morphology of the penial stylet, host preferences and geographic distribution), the temnocephalans hosted in Aegla are tentatively gathered into two clusters, the Chilensis and Axenos groups. 


Phytotaxa ◽  
2021 ◽  
Vol 500 (3) ◽  
pp. 179-200
Author(s):  
CELLINI CASTRO DE OLIVEIRA ◽  
ANDRÉ LAURÊNIO DE MELO ◽  
MARCOS JOSÉ DA SILVA

A synopsis of the genus Cnidoscolus is presented for the midwestern region of Brazil, which resulted from the analysis of about 1,200 specimens from 62 national and foreign herbaria, including type collections. Observations of populations in field were also made. Nine species are recognized, one of which, C. mcvaughii, is new to science. It is described and illustrated, and comments about its geographic distribution, morphological relationships, systematic position, phenology, and conservation status are provided, as well as images and a map. The other species are contrasted by a dichotomous key. Also, distributional information, maps, conservation evaluations, images and morphologically diagnoses are included. Eight synonymizations, one lectotypification, a neotypifcation, and the re-establishment of C. neglectus are proposed.


2021 ◽  
pp. 1-59
Author(s):  
Michael Darby

Abstract The list of genera in the polyphyletic tribe Ptiliini, used as a dumping ground for difficult genera of Ptiliidae by several generations of Coleopterists, is brought up to date with recent additions and omissions, and figures and a key to the genera are provided to aid their determination. 29 new species and 3 new genera are added. It was hoped to be able to determine some generic groups within the tribe but that work must depend on further cladistical and DNA research in the future. The new genera are Cingulum gen.n., Iloptila gen.n. and Numa gen.n. and the new species are Actidium cooteri sp.n., A. minimum sp.n., A. nigrum sp.n., Cingulum orsippus gen.n. sp.n., Dipentium bicolor sp.n., D. punctissimum sp.n., D. spinosum sp.n., Gomyella intricata sp.n., G. nicoya sp.n., G. profunda sp.n., G. tripla sp.n., Greensladella cicra sp.n., G. similata sp.n., Iloptila modica gen.n. sp.n., Micridium circulatum sp.n., M. dembickyi sp.n., M. hirsutum sp.n., M. juara sp.n., M. novum sp.n., Millidium karnatakense sp.n., Numa carmen gen.n. sp.n., Ptiliodes kanchiporam sp.n., Ptiliola bennetti sp.n., P. nigra sp.n., P. peruviensis sp.n., Ptilium lisae sp.n., P. longum sp.n., P. pallidulum sp.n. and P. piceum sp.n.


Zootaxa ◽  
2017 ◽  
Vol 4350 (3) ◽  
pp. 500
Author(s):  
JULISSA M. CHURATA-SALCEDO ◽  
LUCIA M. ALMEIDA ◽  
GUILLERMO GONZÁLEZ ◽  
ROBERT D. GORDON

The subgenus Sidonis Mulsant, 1850 is elevated to generic status and two new species from Brazil are described and illustrated: Sidonis bira sp. nov. and Sidonis biguttata sp. nov. New geographic distribution records are provided. In addition, lectotypes of Sidonis consanguinea (Mulsant, 1850) and S. guttata (Sicard, 1912) are designated. Illustrations of diagnostic characters from five of six species of the genus, comments on the differences from similar species and a key to all recognized taxa are included.  


Zootaxa ◽  
2018 ◽  
Vol 4504 (1) ◽  
pp. 41
Author(s):  
ISHTIAG H. ABDALLA ◽  
CHRISTIAN M. DESCHODT ◽  
CLARKE H. SCHOLTZ ◽  
CATHERINE L. SOLE

The genus Macroderes Westwood, 1842 (Scarabaeidae: Scarabaeinae, tribe incertae sedis) is practically endemic to South Africa with only one species that is found little north in southern Namibia. The ranges of the species are limited to the winter-fall and bimodal biomes of South Africa comprising the regions of Richtersveld as extreme points of its northerly distribution, and extending to the south through Namaqualand to Cape Agulhas. The taxonomy of the genus is revised. Fourteen valid species are recognised and three others are of doubtful validity. Seven new species are described, these are: M. cederbergensis Abdalla & Deschodt, new species, M. tortuosus Abdalla & Scholtz, new species, M. gifboomi Abdalla & Scholtz, new species, M. leipoldti Abdalla & Deschodt, new species, M. oreatus Abdalla & Deschodt, new species, M. porselinus Abdalla, new species, and M. soleiana Abdalla & Deschodt, new species. Macroderes nitidus Harold, 1877 is redescribed and its lectotype is designated. The diagnostic characters as well as an updated geographic distribution of each species are summarised. An updated key of the genus, photographs of habitus, sclerites of internal sac, pronotum, pronotal punctures and elytra also are provided. 


Zootaxa ◽  
2005 ◽  
Vol 963 (1) ◽  
pp. 1 ◽  
Author(s):  
MAURÍCIO CAMPOS ◽  
BEATRIZ MOTHES ◽  
RAFAEL ECKERT ◽  
ROB W.M. VAN SOEST

This work deals with haplosclerid sponges off the coast of Maranhão State, northeastern coast of Brazilian shelf (southwestern Atlantic). A new species is described, Haliclona (Halichoclona) lernerae. Four species are recorded for the first time for the Brazilian coast: Amphimedon caribica (Pulitzer-Finali, 1986); Niphates lutea Lehnert & Van Soest, 1999; Neopetrosia subtriangularis (Duchassaing, 1850) and Petrosia (Petrosia) weinbergi Van Soest, 1980. Three species were recollected from the southwestern Atlantic and have their geographic distribution extended on the Brazilian coast: Callyspongia (Cladochalina) vaginalis (Duchassaing & Michelotti, 1864), Oceanapia bartschi (De Laubenfels, 1934) and Xestospongia muta (Schmidt, 1870). Two species were collected for the first time from the Maranhão State Coast: Niphates erecta Duchassaing & Michelotti, 1864 and Neopetrosia proxima (Duchassaing & Michelotti, 1864). A taxonomic study of those samples is given, including description, illustrations and geographic distribution.


2007 ◽  
Vol 5 (4) ◽  
pp. 443-448 ◽  
Author(s):  
Edson H. L. Pereira ◽  
Fábio Vieira ◽  
Roberto E. Reis

Pareiorhaphis nasuta, a new neoplecostomine catfish of the family Loricariidae is described. The species was collected from headwaters of the rio Matipó, tributary of the upper rio Doce basin in State of Minas Gerais, Brazil. The new species is readily diagnosed from all remaining congeners by the longer snout and by the smaller orbital diameter. The new species is the first representative of the genus Pareiorhaphis discovered in the rio Doce basin, thus expanding its geographic distribution. A phylogenetic diagnosis for Pareiorhaphis is presented.


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