Taxonomic applications of the esophageal flapper valve in the Genus Neonesidea (Bairdioidea, Podocopida, Ostracoda), including descriptions of new and poorly known species from the Caribbean and Gulf of Mexico

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. 

Zootaxa ◽  
2018 ◽  
Vol 4422 (4) ◽  
pp. 569 ◽  
Author(s):  
PAULA C. RODRÍGUEZ-FLORES ◽  
ENRIQUE MACPHERSON ◽  
ANNIE MACHORDOM

The genus Munidopsis is one of the most diverse genera within squat lobsters. Here, three new species of Munidopsis, M. cornuata n. sp., M. senticosa n. sp., and M. turgida n. sp., from <500 m off Guadeloupe Island (Caribbean Sea), are fully described and illustrated. Among the Atlantic species of the genus, M. cornuata n. sp. belongs to the group of species having the dorsal surface of the carapace with spines and is most similar to M. robusta (A. Milne-Edwards, 1880), from the Gulf of Mexico and Caribbean Sea. Munidopsis senticosa n. sp. resembles M. barbarae (Boone, 1927) from the Bahamas and the Gulf of Mexico and M. penescabra Pequegnat & Williams 1995, from off Georgia and Gulf of Mexico; the three species belong to the group having the carapace covered with sharp spines. Finally, M. turgida n. sp. is characterized by having the dorsal surface of the carapace, abdomen and pereiopods covered by granules; and resembles M. granulens Mayo, 1972, from NW Caribbean Sea. Apart from the morphological evidence, the analysis of mitochondrial genes (COI and 16S) supports establishing these new species, showing very high genetic divergences compared to their congeners (from 14.5 to 17% for COI, and 7.7 to 12.8% for 16S data). 


Zootaxa ◽  
2021 ◽  
Vol 5048 (2) ◽  
pp. 191-214
Author(s):  
YESSICA CHÁVEZ-LÓPEZ

The Sabellariidae has been scarcely studied in the Gulf of Mexico and the Caribbean Sea, and there are 18 species recorded out of 140 species known in the world. This work aims to improve the knowledge of the sabellariids in the northwestern tropical Atlantic region, provide standardized descriptions, and generate taxonomic identification keys. Sabellariids from three scientific collections were revised: Reference Collection of Laboratorio de Poliquetos, El Colegio de la Frontera Sur (ECOSUR), Chetumal, Collection of Laboratorio de Biodiversidad y Cambio Climático, ECOSUR, Campeche and Invertebrate Zoology Collection of Florida Natural History Museum, University of Florida, Gainesville. Three new species are described: Idanthyrsus bastidai n. sp. and I. mikeli n. sp. from Venezuela, and Sabellaria salazari n. sp. from the Yucatán Peninsula. In addition, new records of S. floridensis Hartman, 1944, S. vulgaris Verrill, 1873, and Phragmatopoma caudata Krøyer in Mörch, 1863 are provided.  


Zootaxa ◽  
2012 ◽  
Vol 3317 (1) ◽  
pp. 39 ◽  
Author(s):  
MARIO H. LONDOÑO-MESA

Three new species of Pista are described. Pista vossae sp. nov., occurs from Florida to Jamaica and Venezuela.This species is distinguished by uncini having few teeth, and base shaped with a rounded anterior process. Pistalizae sp. nov., is present in Florida, the Gulf of Mexico and Panama. This species is distinguished by having a lobeon the dorsal edge of segment 4, eyespots, and uncini with long posterior processes on the anteriormost threeuncinigers only. Finally, Pista hataam sp. nov., from Yucatan Basin, is distinguished by having two lobes on thedorsal edge of segment 4, separated by a smooth swollen membrane, and all thoracic uncini with long posteriorprocesses. Thus, the number of species of Pista for the region is doubled to six. A taxonomic key for Caribbean species is provided.


Zootaxa ◽  
2011 ◽  
Vol 2918 (1) ◽  
pp. 15 ◽  
Author(s):  
I. WESLEY GAPP ◽  
BRUCE S. LIEBERMAN ◽  
MICHAEL C. POPE ◽  
KELLY A. DILLIARD

The Early Cambrian olenelline trilobites are a diverse clade and have been the subject of several phylogenetic analyses. Here, three new species of Bradyfallotaspis Fritz, 1972 (B. coriae, B. nicolascagei, and B. sekwiensis) and one new species of Nevadia Walcott, 1910 (N. saupeae) are described from the Sekwi Formation of the Mackenzie Mountains, Northwest Territories, Canada. In addition, new specimens potentially referable to Nevadia ovalis McMenamin, 1987 were recovered that may expand that species’ geographic range, which was thought to be restricted to Sonora, Mexico. The results of a phylogenetic analysis incorporating several olenelline taxa, including Judomia absita Fritz, 1973 from the Sekwi Formation, are also presented herein. This species has been assigned to various olenelline genera, including Judomia Lermontova, 1951 and Paranevadella Palmer & Repina, 1993. Phylogenetic analysis suggests this species is closely related to Judomia tera Lazarenko, 1960 from Siberia. This phylogenetic relationship provides further support for the hypothesis that a close biogeographic relationship existed between Laurentia and Siberia during the Cambrian.


Zootaxa ◽  
2018 ◽  
Vol 4514 (2) ◽  
pp. 243 ◽  
Author(s):  
GÜLHAN ŞAHİN ◽  
HASAN HÜSEYİN ÖZBEK

This paper reports on mites of the family Pachylaelapidae collected in Bayburt Province, Turkey, during 2013–2015. Nine species were recorded in the genera Pachyseius, Olopachys, Pachylaelaps, and Onchodellus. Pachylaelaps (Longipachylaelaps) bayburtensis sp. nov., Onchodellus turcicus sp. nov. and O. montanus sp. nov. are described to new, and Pachylaelaps (Longipachylaelaps) vicarus is a new record for the Turkish mite fauna. New records extend the geographic range of Pachyseius masani, Olopachys hallidayi, and O. elongatus in Turkey. 


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 ◽  
2012 ◽  
Vol 3528 (1) ◽  
pp. 29 ◽  
Author(s):  
KEVIN J. TILBROOK ◽  
LEANDRO M. VIEIRA

Among the Scrupocellaria species previously reported from Queensland, three are here redescribed — S. cervicornis, S.curvata and S. diadema; two other species, S. frondis and S. sinuosa, are recorded from the area for the first time; threenew species, S. hamata n. sp., S. prolata n. sp. and S. peltata n. sp., are also described, and the remainder are discussed.The need for the re-examination of specimens assigned to this genus is highlighted. The geographic range of some Scrupocellaria species is far more limited than once thought.


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.


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