The Genera Chasmocarcinus Rathbun and Speocarcinus Stimpson on the Continental Shelf of the Gulf of Mexico, with Descriptions of Two New Species (Decapoda: Brachyura: Goneplacidae)

1986 ◽  
Vol 6 (3) ◽  
pp. 547 ◽  
Author(s):  
Darryl L. Felder ◽  
Nancy N. Rabalais
Keyword(s):  
New Species ◽  
Gulf Of Mexico ◽  
Continental Shelf ◽  
Two New Species

Two new species of the Phimochirus holthuisi complex from the Gulf of Mexico, supported by morphology, color, and genetics (Crustacea: Anomura: Paguridae)

Zootaxa ◽  
2019 ◽  
Vol 4683 (4) ◽  
pp. 531-551
Author(s):  
DARRYL L. FELDER ◽  
RAFAEL LEMAITRE ◽  
CATHERINE CRAIG
Keyword(s):  
New Species ◽  
Gulf Of Mexico ◽  
Continental Shelf ◽  
Gene Sequence ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
The Other ◽  
Two New Species ◽  
Molecular Phylogenetic ◽  
Gene Sequence Data

Coloration, gene-sequence data (H3, 12s, 16s), and subtle features in morphology support the description of two new species, both formerly regarded to represent accepted variants of Phimochirus holthuisi s.l. While color in life consistently separates these species from P. holthuisi s.s. and from each other, morphological distinctions are subtle and less than absolute in small specimens, being based on ventral spine counts of walking leg dactyls and relative development of the superior crest on the major chela. Molecular phylogenetic analyses clearly support the separation of sister clades, representing two new species, from P. holthuisi s.s. as well as other congeners available for analysis. Both of the new species are presently known to occur widely throughout the northern Gulf of Mexico, though one occurs more commonly in the northeastern and southeastern Gulf, and may range as far south as Suriname. The other has been taken primarily in the northwestern Gulf, and is not known from outside Gulf waters. While both of the new species appear restricted to relatively deep subtidal waters of the continental shelf, Phimochirus holthuisi s.s. is instead more commonly found in shallow nearshore tropical waters on or near coral reefs. Previous literature reports of P. holthuisi usually represent, at least in part, one or both of these two new species. 

Nephtyidae (Polychaeta) from the Gulf of California (Mexican Pacific) with the description of two new species of Aglaophamus

2008 ◽  
Vol 89 (4) ◽  
pp. 697-710 ◽  
Author(s):  
J. Pérez-Torrijos ◽  
P. Hernández-Alcántara ◽  
V. Solís-Weiss
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
Gulf Of California ◽  
Mexican Pacific ◽  
Taxonomic Key ◽  
The Family ◽  
Two New Species

The aim of this study is to analyse the Nephtyidae from the Gulf of California. Previous studies about the family Nephtyidae from the continental shelf of the Gulf include 21 species of which seven have been synonymized by several authors, so that at present only 14 species are recognized. In this study, 1763 specimens of Nephtyidae from the continental shelf of the Gulf of California were examined. Eight species were identified, from which Aglaophamus longicirrata sp. nov. and Aglaophamus foliosa sp. nov. are newly described. Aglaophamus longicirrata sp. nov. is characterized by the presence of very long dorsal cirri in median parapodia and by having 16 rows of subterminal papillae with 3–7 papillae per row, and a pair of middorsal papillae on the proboscis. Aglaophamus foliosa sp. nov. is characterized by foliaceous long dorsal cirri; the proboscis bears 16 rows of subterminal papillae and an irregular number of papillae per row, from 5 to 15. A taxonomic key is presented for the species of Nephtyidae recorded from the continental shelf of the Gulf of California, including the two new species of Aglaophamus.

Polyclinidae (Ascidiacea: Aplousobranchia) from the Gulf of Mexico, collected during the “Hourglass” cruises (1965–1967)

Zootaxa ◽  
2018 ◽  
Vol 4422 (4) ◽  
pp. 519 ◽  
Author(s):  
MARIA TARCIANA VIEIRA FORTALEZA ◽  
TITO MONTEIRO DA CRUZ LOTUFO
Keyword(s):  
New Species ◽  
Gulf Of Mexico ◽  
New Records ◽  
The Family ◽  
Two New Species

This paper presents the ascidians from the Family Polyclinidae collected in the Gulf of Mexico during the Hourglass Cruises between August 1965 and November 1967. The analysis of the collected material revealed the presence of eight polyclinid ascidians from three different genera, with two new species and two new records for the Gulf of Mexico. 

Two new species of Tanaidacea of the genus Kalliapseudes Stebbing, 1910 (Crustacea: Apseudomorpha: Kalliapseudidae) from Australia

Zootaxa ◽  
2007 ◽  
Vol 1441 (1) ◽  
pp. 1-19
Author(s):  
DAVID T. DRUMM
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
New South ◽  
New South Wales ◽  
The Other ◽  
Distribution Data ◽  
Marine Waters ◽  
South Wales ◽  
Two New Species ◽  
Simple Seta

Two new species of kalliapseudid tanaidacea from Australia, Kalliapseudes longisetosus and Kalliapseudes messingi, are described from marine waters off Sydney, New South Wales and the Northwest continental shelf, respectively. Kalliapseudes longisetosus is distinguished from the other congeners by the presence of a single, very long simple seta on the anterior corners of the pereonites (about as long as the first pereonite) and several very long simple setae on the basis of the second and third pereopods (about as long as the basis). This new species is the second member of the genus to be reported from New South Wales. Kalliapseudes messingi is distinguished by having two small setae medially on the dactylus of pereopods 4 and 5, by the female having a tuft of sensory setae subterminally on the dactylus of pereopod 6, and by having three plumose setae on both the cheliped and pereopod 1 exopodite and is the first member of the genus to be reported from the Northwest continental shelf of Australia. Both species have a needle-like tip on the dactylus of the second and third pereopods. A table giving the distribution data for the species of Kalliapseudes and a key to the genera and species of Kalliapseudidae now known from Australia are presented.

New species of the gutless marine genus Inanidrilus (Oligochaeta, Tubificidae) from the Gulf of Mexico and Barbados

1982 ◽  
Vol 60 (12) ◽  
pp. 3063-3067 ◽  
Author(s):  
Christer Erséus ◽  
H. R. Baker
Keyword(s):  
New Species ◽  
Coral Reefs ◽  
Gulf Of Mexico ◽  
West Indies ◽  
Two New Species ◽  
Definition Of

The definition of Inanidrilus Erséus, 1979 (subfamily Phallodrilinae) is emended to include Inanidrilus mexicanus sp. nov. from the eastern part of the Gulf of Mexico, and Inanidrilus falcifer sp. nov. from coral reefs at Barbados, West Indies. The two new species differ from I. bulbosus Érséus, 1979 by their possession of paired spermathecae and from each other in the morphology of their spermathecae, atria, and penial setae.

Two new species of Cerapus (Crustacea: Amphipoda: Ischyroceridae) from the Northwest Atlantic and Gulf of Mexico

Zootaxa ◽  
2018 ◽  
Vol 4441 (3) ◽  
pp. 495
Author(s):  
DAVID T. DRUMM
Keyword(s):  
New York ◽  
New Species ◽  
Body Size ◽  
Gulf Of Mexico ◽  
Delaware Bay ◽  
The Other ◽  
Northwest Atlantic ◽  
Great South Bay ◽  
Two New Species

Examination of material from the Northwest Atlantic and Gulf of Mexico revealed the presence of two new species of the amphipod genus Cerapus. One of the species occurs in the NW Atlantic (Delaware Bay and Great South Bay, New York) and the other species occurs in the Gulf of Mexico (Manatee River, Florida and Corpus Christie Bay, Texas). They can be distinguished from congeners by a combination of characters: number of antennular flagella articles, position of the male gnathopod 2 carpal process, shape of the inner ramus of pleopod 2, presence of a distoventral hook on the uropod 1 peduncle of the male, and the nature of the pereopod 7 spination/setation. They can be distinguished from each other by the number of antennular flagella articles in the female and in overall body size. 

Paraonidae (Polychaeta) from western Mexico, with description of two new species

2006 ◽  
Vol 86 (2) ◽  
pp. 253-262 ◽  
Author(s):  
Jesús Angel de León-González ◽  
Norma Angélica Hernández Guevara ◽  
José Alejandro Rodríguez-Valencia
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
Intertidal Zone ◽  
Baja California ◽  
Baja California Sur ◽  
Western Mexico ◽  
The Pacific ◽  
Two New Species ◽  
First Time

In the present study 23 species of paraonids from western Mexico collected from the intertidal zone to the continental shelf of Baja California Sur, Guaymas, Sonora, and Petacalco, Guerrero are reported. Eight of these species are first recorded from the Mexican coast: Aricidea (Acmira) assimilis, Aricidea (Acmira) catherinae, Aricidea (Allia) ramosa, Aricidea (Aricidea) longicirrata, Aricidea (Aricidea) minima, and Levinseniaoligobranchiata; Aricidea (Aricidea) minuta and Cirrophorusarmatus are cited for first time from the Pacific. Two new species are described. Aricidea (Aricidea) petacalcoensis sp. nov. has bifurcate antenna on prostomium without nuchal grooves, tapering branchiae in chaetigers 4–13, modified neuropodial chaetae from chaetiger 21. Cirrophorus magdalenaensis sp. nov. has prostomium without antennae, eyes or nuchal grooves, banchiae from chaetiger 5, having ten pairs, notopodial modified chaetae bayonet-shaped.

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