Blood Flukes (Digenea: Aporocotylidae) of Elopomorphs: Emendation ofParacardicoloides, Supplemental Observations ofParacardicoloides yamagutii, and a New Genus and Species from Ladyfish,Elops saurus, (Elopiformes: Elopidae) in the Gulf of Mexico

2014 ◽  
Vol 100 (3) ◽  
pp. 305-316 ◽  
Author(s):  
Stephen A. Bullard
Keyword(s):  
Gulf Of Mexico ◽  
New Genus ◽  
New Genus And Species ◽  
Blood Flukes

scholarly journals A new genus and species of mud crab (Crustacea, Brachyura, Panopeidae) from shoreline waters of the western Gulf of Mexico

Zootaxa ◽  
2020 ◽  
Vol 4845 (3) ◽  
pp. 425-435
Author(s):  
DARRYL L. FELDER ◽  
BRENT P. THOMA
Keyword(s):  
Gulf Of Mexico ◽  
New Genus ◽  
Sequence Data ◽  
New Genus And Species ◽  
Taxonomic Description ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
Rocky Habitats ◽  
Sequence Quality ◽  
Unique Species

Several specimens of a small panopeid crab from coastal waters of the western Gulf of Mexico were long suspected to represent an undescribed species and are herein designated as representatives of a new genus. While the originally collected specimens from over four decades ago were not of gene-sequence quality, later collections from the same locality produced materials that yielded sequence data for inclusion in molecular phylogenetic studies. Building on results of those analyses, the present taxonomic description draws upon morphology to support the description of a unique species in which especially the male first gonopods differ from those of all other described panopeid genera. To date, the species remains known from only two western Gulf of Mexico sites, both of which are wave-washed intertidal rocky habitats where substrates are heavily burrowed by boring bivalves and sipunculans. While we cannot exclude the possibility that the species was introduced, recurrent collections show its populations to be at very least persistent, the species most likely being a long-overlooked among a confusing hard-substrate assemblage of small panopeid crabs. 

A new genus and species of xanthoid crab (Decapoda: Brachyura) from offshore hard bank habitats in the Gulf of Mexico

Zootaxa ◽  
2020 ◽  
Vol 4731 (3) ◽  
pp. 403-413 ◽  
Author(s):  
BRENT P. THOMA ◽  
DARRYL L. FELDER
Keyword(s):  
Gulf Of Mexico ◽  
New Genus ◽  
Gene Sequence ◽  
Atlantic Coast ◽  
New Genus And Species ◽  
Sequence Analyses ◽  
The Family ◽  
Molecular Phylogenetic ◽  
Phylogenetic Affinities ◽  
A New Species

Speciose populations of small xanthoid crabs on offshore banks and reefs of the northern Gulf of Mexico include a new species that is not assignable to presently named genera. Morphological diagnoses of the new genus and species are underpinned by previously published gene sequence analyses, originally misattributed to another species but now known to apply to this taxon. Herein named Guinope tiara n. gen., n. sp., the species shows molecular phylogenetic affinities with the family Linnaeoxanthidae Števčić, 2005, an ally of panopeid and pseudorhombilid crabs. Specimens from Occulina banks off the Florida Atlantic coast, previously regarded to represent Garthiope barbadensis (Rathbun, 1921), are not that species but instead morphologically assignable to Guinope n. gen. Whether they represent variants of Guinope tiara n. gen, n. sp. or a second species of the genus awaits the collection of fresh materials for DNA analyses. 

Crinitostella laguardai, new genus and species of wood-dwelling deep-sea sea-star (Asteroidea: Caymanostellidae) from the Gulf of Mexico

2021 ◽  
pp. 1-7
Author(s):  
Carolina Martin-Cao-Romero ◽  
Francisco Alonso Solís-Marín ◽  
Guadalupe Bribiesca-Contreras
Keyword(s):  
Gulf Of Mexico ◽  
Deep Sea ◽  
New Genus ◽  
Phylogenetic Position ◽  
Published Data ◽  
Sea Star ◽  
New Genus And Species ◽  
Sea Stars ◽  
The Family ◽  
Phylogenetic Hypotheses

Abstract The Caymanostellidae is a family of rarely encountered wood-dwelling deep-sea sea-stars, with only six species, in two genera, described to date. During the COBERPES 5 expedition on board the RV ‘Justo Sierra’, off Tabasco, Gulf of Mexico in 2013, 12 specimens were recovered from a single piece of sunken wood. Herein we describe a new genus and species of caymanostellid, Crinitostella laguardai gen. nov., sp. nov. This species represents the shallowest known caymanostellid (418–427 m depth), and the first known occurrence of the Caymanostellidae from the Gulf of Mexico. The family Caymanostellidae displays affinities with several groups, such as Asterinidae and Korethrasteridae, making it difficult to infer its phylogenetic position evidenced by the myriad of contrasting phylogenetic hypotheses proposed. In an attempt to shed some light on the phylogenetic relationships of the family, sequences of nuclear and mitochondrial DNA of the new species were generated and combined with published data. As previously suggested, caymanostellids seem to be part of valvatacean polytomy rather than velatids.

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