Three new species of Heth Cobb, 1898 (Ransomnematoidea: Hethidae) from spiroboloid millipedes from Mexico

Nematology ◽  
2014 ◽  
Vol 16 (1) ◽  
pp. 83-98 ◽  
Author(s):  
Hugo H. Mejia-Madrid

Heth gordae n. sp., H. xarochae n. sp. and H. tuxtlensis n. sp. from the intestine of spiroboloids from Mexico are described herein. Females of H. gordae n. sp. and H. xarochae n. sp. can be differentiated from all other described species of Heth from the Americas by the presence of two sets of lateral spines with multiple cusps with a common broad base arranged in a semilunar shape pattern. Heth gordae n. sp. exhibits a narrower pattern that resembles more a comb-like structure, whereas H. xarochae n. sp. exhibits a broader pattern. Both aforementioned species resemble H. hexaspinosum from Panamá, but the latter possesses fewer spines without a common base. Lateral spines with multiple cusps have never been previously described in the genus Heth. Females of H. tuxtlensis n. sp. resemble Asian collar lappet-species but differ from them in possessing a complete uninterrupted collar with indented single lateral lappets. Specific characters described herein set these species apart from the Caribbean Heth species, most South American, and those previously described from Mexico. The present descriptions increase the number of Heth species recorded from Mexico from three to six.

Phytotaxa ◽  
2017 ◽  
Vol 316 (2) ◽  
pp. 149 ◽  
Author(s):  
PEDRO LUÍS RODRIGUES DE MORAES ◽  
MATHEUS CARVALHO VERGNE ◽  
HENK VAN DER WERFF

Three South-American new species belonging to Cinnamomum, Mezilaurus, and Williamodendron, are described and illustrated from specimens collected in the Atlantic rainforest of Brazil. The new species are Cinnamomum baitelloanum, Mezilaurus sessiliflora, and Williamodendron itamarajuensis. Their putative relationships within the respective genus are discussed.


2018 ◽  
Vol 49 (5) ◽  
pp. 2167-2192 ◽  
Author(s):  
Katrine Worsaae ◽  
Brett C. Gonzalez ◽  
Alexandra Kerbl ◽  
Sofie Holdflod Nielsen ◽  
Julie Terp Jørgensen ◽  
...  

Zootaxa ◽  
2012 ◽  
Vol 3508 (1) ◽  
pp. 1 ◽  
Author(s):  
ROBERT J. KALLAL ◽  
JOHN S. LaPOLLA

The taxonomy of the Nearctic Nylanderia fauna is revised. Three new species are established, bringing the total numberof native species from the region to 14. The new species are: N. magnella, N. querna, and N. trageri. Several speciespossess workers that are difficult to distinguish from each other and the presence of males is required for morphologicalidentification. This is particularly the case with N. vividula and N. terricola. Two subspecies are synonymized: N. vividulamjobergi is considered a junior synonym of N. vividula and N. vividula antillana is considered a junior synonym of N.guatemalensis. At least five Nylanderia species have been introduced to the Nearctic region, including: N. bourbonica,N. flavipes, N. fulva, N. pubens, and N. steinheili. Another species, N. guatemalensis, is also included because its widedistribution across the Caribbean and Central America suggest it could become introduced to the Nearctic region. Iden-tification keys are provided for the workers of native and introduced species and the males of native species. Distributionmaps are provided for native and introduced species. Photomontage images are provided for the worker of each introduced species and all castes of the native species.


Zootaxa ◽  
2004 ◽  
Vol 757 (1) ◽  
pp. 1
Author(s):  
DONALD W. WEBB ◽  
MARK A. METZ

The genus Nigranitida Metz is revised with the description of three new species, N. gibba Webb, N. irwini Webb, and N. margaretae Webb from Argentina. A key to the identification of the four species is included along with illustrations of the genitalia.


Zootaxa ◽  
2009 ◽  
Vol 2107 (1) ◽  
pp. 1-40 ◽  
Author(s):  
ROB W. M. VAN SOEST

Thirteen new species of sponges are described from coral reefs of the Netherlands Antilles and the Colombian Caribbean. Species were collected during quantitative investigations of reef sponges performed by students of the University of Amsterdam in the period between 1984 and 1991. Most of the reported specimens were taken from undersides of coral rubble, crevices or reef caves (sciophilous habitats) and without exception are small encrusting or fistular sponges. The material reported in this paper includes a new genus and species of Placospongiidae, Placospherastra antillensis n. g. n. sp. , the first Caribbean representatives of the genera Triptolemma (Pachastrellidae) and Megaciella (Acarnidae), viz. Triptolemma endolithicum n. sp. and Megaciella incrustans n. sp., a new species of Timeidae, Timea curacaoensis n. sp., a new species of Microcionidae with peculiar colloscleres, Clathria (Thalysias) collosclera n. sp., two new species of Chondropsidae, viz. Batzella fusca n. sp., and Strongylacidon unguiferum n. sp., three new species of Coelosphaeridae, viz. Forcepia (Forcepia) minima n. sp., Forcepia (Forcepia) fistulosa n. sp., and Forcepia (Leptolabis) microlabis n. sp., a new species of Crellidae, Crella (Grayella) beglingerae n. sp., a new species of Hymedesmiidae, Hymedesmia (Hymedesmia) bonairensis n. sp., and a new species of Mycalidae, Mycale (Paresperella) vitellina n. sp. Most species are represented by only small fragments removed from the substrate by scalpel or diving knife, leaving little and often crumbled preserved type material. This study is intended to demonstrate that the small crusts dominating easily accessible shallow water coral rubble habitats in the Caribbean remain understudied.


Zootaxa ◽  
2008 ◽  
Vol 1727 (1) ◽  
pp. 1 ◽  
Author(s):  
CAROLINA NIETO ◽  
BARTON RICHARD

Three new species of Cloeodes are described from Argentina (C. barituensis, C. espinillo and C. opacus), based on nymphs and from adults for the first two species. Two species, C. stelzneri and C. nocturnus, are proposed as nomen dubia. The only other species from Argentina, C. penai, is revised. The validity of the monotypic genus Bernerius is analyzed. A cladistic analysis including five species of the genus Cloeodes and Bernerius is presented and the synonymy of the latter is confirmed. A key for South American species of Cloeodes is presented.


Zootaxa ◽  
2021 ◽  
Vol 4903 (4) ◽  
pp. 451-492
Author(s):  
ROSALIE F. MADDOCKS

Species and genera of Bairdiidae can be difficult to discriminate, because of the somewhat limited morphological range of the carapace and limbs and the prevalence of homeomorphy. Attention to the esophageal flapper valve, an uncalcified but relatively well sclerotized structure, may contribute to more reliable identifications. Living species of Neonesidea exhibit sufficient variability in the architecture of this structure to suggest that it may have taxonomic value. Twelve named and three new species are examined to test this premise: N. bacata, N. caraionae n. sp., N. decipiens, N. credibilis n. sp., N. forea n. sp., N. edentulata, N. gerda, N. holdeni, N. longisetosa, N. manningi, N. mediterranea, N. omnivaga, N. plumulosa, N. schulzi, N. tenera. The geographic range of N. gerda is extended across the Gulf of Mexico, while the ranges of N. longisetosa and N. dinochelata are restricted. This supplemental information helps to clarify the relationships of several poorly known species from carbonate environments of Bermuda, the Bahamas, Florida, the Gulf of Mexico, and the Caribbean. 


Phytotaxa ◽  
2015 ◽  
Vol 227 (1) ◽  
pp. 13 ◽  
Author(s):  
Rafaela Campostrini Forzza ◽  
Elton Leme

Encholirium is an exclusively Brazilian genus of Bromeliaceae that occurs principally in the South American dry diagonal, with only a few species found on inselbergs within the Atlantic Forest. The center of diversity of the genus falls within the Campos Rupestres of the Espinhaço Range of the state of Minas Gerais, followed by rocky outcrops found within the Caatinga and Cerrado biomes. Three new species are described and illustrated, two of which occur on limestone outcrops in western Bahia (Encholirum splendidum and Encholirium fragae), while the third, Encholirium kranzianum, occurs in the Campos Rupestres of the Espinhaço Range of Minas Gerais.


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8416 ◽  
Author(s):  
Martha A. Gutiérrez-Aguirre ◽  
Adrián Cervantes-Martínez ◽  
Manuel Elías-Gutiérrez ◽  
Alfonso Lugo-Vázquez

Background In Mexico, species of four families of free-living calanoid copepods have been recorded as inhabitants of several freshwater systems. These families are Centropagidae, Temoridae, Pseudodiaptomidae and Diaptomidae. The genera Leptodiaptomus and Mastigodiaptomus are the most speciose diaptomid genera in Mexico, and they inhabit natural and artificial lakes, ephemeral ponds, springs, and caverns. Leptodiaptomus is considered as an endemic Nearctic genus, whereas Mastigodiaptomus is a widely distributed Neotropical genus in the southern USA, Mexico, the Caribbean Islands and Central America. Based on new and recent evidence, Mastigodiaptomus diversity has been underestimated: six species of the genus were known before 2000. In this work three new Mastigodiaptomus species have been described from different regions of Mexico by using integrative taxonomy. We also gave amended diagnosis of M. nesus Bowman (1986) and M. patzcuarensis s. str. (Kiefer, 1938). Methods In this work, the taxonomic status of the species was clarified using modern, integrative method based on the COI gene as a DNA marker, plus micro-structural analysis (based on SEM and ligth microscopy). Results Three new species of Mastigodiaptomus were described based on genetic and morphological analyses: M. alexei sp. n., M. ha sp. n. and M. cihuatlan sp. n. Also amended description of M. nesus, morphological variation of M. patzcuarensis s. str., and a comparison of them with all known sequences within the genus are provided. These new findings show that in Mastigodiaptomus differences in several cuticular microstructures of several appendages (such as the antennules, the fifth legs, or the urosomites of these copepods) agree with the interspecific genetic divergence >3% observed in sequences of the COI gene, and the integration of this information is a powerful tool in species delineation.


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