Records of mud shrimps (Crustacea: Decapoda: Axiidea and Gebiidae) from Pacific Mexico

2013 ◽  
Vol 94 (2) ◽  
pp. 369-388 ◽  
Author(s):  
Manuel Ayón-Parente ◽  
Michel E. Hendrickx ◽  
Eduardo Ríos-Jara ◽  
José Salgado-Barragán
Keyword(s):  
Pacific Coast ◽  
Eastern Pacific ◽  
Western Atlantic ◽  
Mexican Pacific ◽  
The Pacific ◽  
First Time

A total of 75 specimens belonging to four species of thalassinoids were collected in the intertidal and estuarine zones of two localities along the Pacific coast of Mexico.Callianassa tabogensisis recorded for the first time in Mexico, and is transferred to the genusNeotrypaea. Material ofCallichirusis assigned toCallichirus seilacheriwith some doubts due to taxonomic problems related to this genus in the eastern Pacific.Neocallichiruscf.grandimana, an amphi-American species described for the western Atlantic and previously reported in Ecuador and along the Pacific coast of Panama and Colombia, is reported for the first time in Mexico.Upogebia dawsoniis recorded for the second time from the coast of Jalisco. An updated list of Axiidea and Gebiidea known from the Mexican Pacific is provided, including 35 species.

Chrysopetalids (Phyllodocida: Chrysopetalidae) from the southern Mexican Pacific, including a new species

Zootaxa ◽  
2018 ◽  
Vol 4521 (1) ◽  
pp. 61 ◽  
Author(s):  
CHRISTOPHER CRUZ-GÓMEZ ◽  
J. ROLANDO BASTIDA-ZAVALA
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
New Records ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Mexican Pacific ◽  
The Pacific ◽  
The Family ◽  
First Time ◽  
A New Species

The family Chrysopetalidae has been poorly studied from the Pacific coast of Mexico compared to other families. Specifically from the southern Mexican Pacific, only two species of the family have been recorded in previous studies, Chrysopetalum occidentale and Paleanotus chrysolepis. In this study 311 specimens were revised, and nine species, belonging to six genera were found. Eight of these species are new records from the southern Mexican Pacific coast: Arichlidon watsonae n. sp., Bhawania cf. goodei, Chrysopetalum elegantoides, C. maculata, Hyalopale sp., Paleaequor psamathe, Paleanotus bellis and P. purpurea. A new species is also described, Arichlidon watsonae n. sp., which is characterized by the curved tips blades of the falcigers and their small and ovoid palps. Additionally, the genera Arichlidon and Hyalopale are recorded by first time from the Tropical Eastern Pacific. 

A revision of the genus Mycale (Poecilosclerida: Mycalidae) from the Mexican Pacific Ocean

2010 ◽  
Vol 79 (4) ◽  
pp. 165-191 ◽  
Author(s):  
José L. Carballo ◽  
José A. Cruz-Barraza
Keyword(s):  
Pacific Ocean ◽  
Pacific Coast ◽  
Type Material ◽  
Mexican Pacific ◽  
East Pacific ◽  
The Pacific ◽  
Taxonomic Studies ◽  
Species Descriptions ◽  
First Time

Knowledge about the sponge fauna from the Mexican Pacific Ocean has increased substantially in recent years, but most of these modern taxonomic studies have been focused on hadromerids. The aim of this study was to contribute to the knowledge of the order Poecilosclerida. At present, seven species of Mycale have been described or recorded from the Pacific coast of Mexico, but only three of them are considered valid: M. contax, M. cecilia and M. aff. magnirhaphidifera. After a revision of the material collected during the last eight years throughout the East Pacific coast of Mexico, along with the type material, and the literature available, eight species of Mycale are considered valid, three of them; M. magnitoxa sp. nov., M. dickinsoni sp. nov., and M. ramulosa sp. nov., are proposed as new to science. In addition, M. adhaerens is reported for the first time from the Mexican Pacific Ocean. Another Mycale-species that was identified was M. psila, which constitutes its seconLamberd record for the Mexican Pacific Ocean. The systematic, distribution and detailed species descriptions are based on newly collected material and previous descriptions from the literature.

Taxonomic remarks on the alpheid shrimp genus Triacanthoneus Anker, 2010, with description of a second eastern Pacific species (Malacostraca: Decapoda)

Zootaxa ◽  
2020 ◽  
Vol 4772 (3) ◽  
pp. 450-468 ◽  
Author(s):  
ARTHUR ANKER
Keyword(s):  
Pacific Coast ◽  
Eastern Pacific ◽  
Single Specimen ◽  
Bocas Del Toro ◽  
The Pacific ◽  
Southern Gulf Of Mexico ◽  
New Material ◽  
First Time ◽  
Pacific Species ◽  
Alpheid Shrimp

The recently described alpheid genus Triacanthoneus Anker, 2010 is reassessed based on new material from the Pacific and Caribbean coasts of Panama, and the southern Gulf of Mexico. Salmoneus armatus Anker, 2010 is tentatively transferred to Triacanthoneus and the latter genus is redefined. A new eastern Pacific species of Triacanthoneus is described based on a single specimen collected by scuba diving off Coiba Island on the Pacific coast of Panama. Triacanthoneus blanca sp. nov. is closely related to its only eastern Pacific congener, T. pacificus Anker, 2010, which is reported for the first time from the Las Perlas Islands in the Gulf of Panama. Morphological variation in T. toro Anker, 2010 is discussed on the basis of new topotypical material from Bocas del Toro, Panama, and a single specimen tentatively reported as T. cf. toro from Sisal, Mexico. An identification key to the seven currently known species of Triacanthoneus, with updated distributional and ecological information, as well as high-resolution colour photographs of four species are also provided. 

Six new species and three new records of infaunal alpheid shrimps from the genera Leptalpheus Williams, 1965 and Fenneralpheus Felder & Manning, 1986 (Crustacea, Decapoda)

Zootaxa ◽  
2011 ◽  
Vol 3041 (1) ◽  
pp. 1 ◽  
Author(s):  
ARTHUR ANKER
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
New Records ◽  
Caribbean Coast ◽  
Western Atlantic ◽  
The Pacific ◽  
New Localities ◽  
Unidentified Species ◽  
The Caribbean ◽  
First Time

Several species of the infaunal alpheid genera Leptalpheus Williams, 1965 and Fenneralpheus Felder & Manning, 1986 are described as new or reported from new localities in the tropical western Atlantic and eastern Pacific. In the genus Leptalpheus, five species are described as new: L. marginalis sp. nov. from the Caribbean coast of Colombia; L. penicillatus sp. nov. from the Pacific coast of Panama and Costa Rica; L. azuero sp. nov., L. hendrickxi sp. nov., and L. bicristatus sp. nov., all three from the Pacific coast of Panama. In addition, L. cf. forceps Williams, 1965 and L. felderi Anker, Vera Caripe & Lira, 2006 are reported for the first time from the Caribbean coast of Panama. Several unidentified species of Leptalpheus presently known from incomplete or immature specimens are also reported. In the genus Fenneralpheus, F. orabovis sp. nov. is described as new, whereas F. chacei Felder & Manning, 1986 is reported from the Caribbean coast of Panama, representing the first finding of this species outside its type locality in Florida. The generic diagnoses of both Leptalpheus and Fenneralpheus are emended to accommodate the new species.

The eastern Pacific species of Salmoneus Holthuis, 1955, with description of a remarkable new species from Las Perlas Archipelago, Panama  (Malacostraca: Decapoda: Alpheidae)

Zootaxa ◽  
2019 ◽  
Vol 4651 (1) ◽  
pp. 125-140 ◽  
Author(s):  
ARTHUR ANKER
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Type Specimens ◽  
Shark Teeth ◽  
The Pacific ◽  
First Time ◽  
Pacific Species ◽  
Alpheid Shrimp

The present study deals with five species of the alpheid shrimp genus Salmoneus Holthuis, 1955 from the tropical eastern Pacific. One of them is new to science and is described as Salmoneus tiburon sp. nov. The new species is presently known only from the Las Perlas Archipelago in Panama and can be distinguished from all other congeners by the dentition on the cutting edges of the major chela, with some dactylar teeth reminiscent of shark teeth. It is also one of the largest species of the genus, with the carapace length of both type specimens surpassing 8.0 mm. Salmoneus serratidigitus (Coutière, 1897), a species with an ample distribution across the Indo-Pacific, is recorded for the first time from the Pacific coast of Panama and is confirmed from Colombia. Salmoneus malagensis Anker & Lazarus, 2015, previously known only from Bahía Málaga in Colombia, is recorded from Panama’s Azuero Peninsula. The remaining two species, S. excavatus Anker, 2011 and S. alvarezi Anker & Lazarus, 2015, are recorded regionally from Las Perlas Archipelago in Panama and Playa Tarcoles in Costa Rica, both for the first time since their original descriptions. An identification key to the five currently known eastern Pacific species of Salmoneus is provided. However, several immature and/or incomplete specimens herein preliminarily reported as Salmoneus spp., as well photographic records from southern California, USA, indicate the presence of further undescribed species in the eastern Pacific. 

scholarly journals First record of Stibarobdella moorei (Annelida, Hirudinea, Piscicolidae) a marine leech parasitizing Octopus bimaculatus (Mollusca: Octopodidae) from the Mexican Pacific coast

2017 ◽  
Vol 54 (4) ◽  
pp. 322-329 ◽  
Author(s):  
D. J. López-Peraza ◽  
M. Hernández-Rodríguez ◽  
B. Barón-Sevilla ◽  
L. F. Bückle-Ramírez ◽  
M. I. Grano-Maldonado
Keyword(s):  
Los Angeles ◽  
Pacific Coast ◽  
Present Finding ◽  
First Record ◽  
Distribution Area ◽  
New Host ◽  
Mexican Pacific ◽  
The Pacific ◽  
The Pacific Ocean ◽  
First Time

SummaryThe occurrence of the parasitic marine leech Stibarobdella moorei (Oka, 1910) (Hirudinea: Piscicolidae) along the northwest Mexican Pacific coast is described for the first time. This ectoparasite was collected from the skin of the Octopus bimaculatus (Verril, 1983) (Mollusca: Octopodidae). Stibarobdella loricata (Hardig, 1924) is synonymized with S. moorei as this species resembles other species of the genus based on tubercle patterns and the presence of papillae and a marginal fringe on the oral sucker. The present finding throws new light on the biodiversity and host preference of the ectoparasite and suggests a successful migration to unusual host. The coast of the Pacific Ocean, particularly in the Bay of Los Angeles, Baja California, Mexico is a new geographical distribution area for S. moorei, and O. bimaculatus is a new host reported for this leech. The morphology of this ectoparasite is briefly described.

scholarly journals Helminths of hawksbill turtle (Eretmochelys imbricata) from the Pacific coast of Costa Rica

2015 ◽  
Vol 52 (1) ◽  
pp. 67-70 ◽  
Author(s):  
M. Santoro ◽  
J. A. Morales ◽  
F. Bolaáos ◽  
G. Chaves ◽  
M. De Stefano
Keyword(s):  
Costa Rica ◽  
Pacific Coast ◽  
Eastern Pacific ◽  
Pathological Changes ◽  
Eretmochelys Imbricata ◽  
Parasitological Examination ◽  
The Pacific ◽  
Nodular Lesions ◽  
First Time ◽  
Necrotic Debris

Summary Parasitological examination of a stranded hawksbill turtle (Eretmochelys imbricata) from Pacific coast of Costa Rica revealed the presence of a rich digenean fauna including Carettacola stunkardi (Spirorchiidae), Enodiotrema reductum (Plagiorchiidae), Cricocephalus albus, Adenogaster serialis, Epi-bathra crassa, Pleurogonius lobatus, P. trigonocephalus, P. linearis, and Pyelosomum posterorchis (Pronocephalidae). All helminths except C. albus and P. lobatus represent new geographical records for Costa Rica. Carettacola stunkardi is reported for first time in an Eastern Pacific hawksbill turtle and its pathological changes are here described. Histologically, nodular lesions on the serosal surface of intestine revealed a mixed infiltrate of heterophils, lymphocytes, and histiocytes within necrotic debris. Granulomas with spirorchiid eggs were observed in the mucosa, sub-mucosa and muscular layers of stomach and intestine, gallbladder and liver.

scholarly journals REVISIÓN TAXONÓMICA DE LA FAMILIA ANTENNARIIDAE PARA COLOMBIA (PISCES: LOPHIIFORMES), INCLUYENDO UN NUEVO REGISTRO DE ANTENNARIUS

2016 ◽  
Vol 36 ◽  
Author(s):  
Luz M. Mejía Ladino ◽  
Arturo Acero P. ◽  
Luz S. Mejía M. ◽  
Andrea Polanco F.
Keyword(s):  
Common Species ◽  
Eastern Pacific ◽  
Western Atlantic ◽  
The Pacific ◽  
The Family ◽  
The Caribbean

The family Antennariidae is represented by two genera (Antennarius and Histrio) and seven species in the Western Atlantic, and by two genera (Antennarius and Antennatus) and five species in the Eastern Pacific. All the species are known from Colombian waters, with the exception of Antenanrius coccineus. In this study we review the family Antenariidae in Colombia, based on the examination of 51 specimens. Antennarius radiosus is first recorded from the Colombian Caribbean, based on two specimens collected with trawls at 20 m depth in Buritaca (Magdalena) and Isla Fuerte (Córdoba). Antennarius radiosus, Antennarius bermudensis, Antennarius multiocellatus, Antennarius ocellatus and Antennarius pauciradiatus are restricted to the Western Atlantic. The most common species found in Colombian seas are Antennarius striatus in the Caribbean and Antennarius avalonis in the Pacific. Histrio histrio is the only species with an almost circumglobal distribution. A key to identify antenariid fishes from Colombia is provided.

scholarly journals Mechanisms of Future Changes in Equatorial Upwelling: CMIP5 Intermodel Analysis

2020 ◽  
Vol 33 (2) ◽  
pp. 497-510 ◽  
Author(s):  
Mio Terada ◽  
Shoshiro Minobe ◽  
Curtis Deutsch
Keyword(s):  
Climate Models ◽  
Eastern Pacific ◽  
Trade Wind ◽  
Pacific Basin ◽  
Ekman Pumping ◽  
Equatorial Atlantic ◽  
Western Atlantic ◽  
Near Surface ◽  
The Pacific ◽  
Equatorial Upwelling

AbstractThe future change in equatorial upwelling between 1971–2000 and 2071–2100 is investigated using data from 24 coupled climate models. The multimodel ensemble (MME) mean exhibits substantial equatorial upwelling decrease in the eastern Pacific and weaker decrease in the western Atlantic Ocean. The MME mean of upwelling change and intermodel variation of that are decomposed into distinct isopycnal and diapycnal components. In the Pacific, the diapycnal upwelling decreases near the surface, associated with a weakened Ekman pumping. The isopycnal upwelling decreases at depths of 75–200 m around the core of the Equatorial Undercurrent (EUC) due to flattening of the density layer in which it flows. Both the weakened Ekman pumping and the EUC flattening are induced by the locally weakened trade wind over the eastern Pacific basin. In the equatorial Atlantic, both the change in MME mean and the intermodel variation of upwellings are significantly related to the weakened trade wind and enhanced stratification, although these drivers are not independent. The results for the Pacific Ocean imply that future reduction in upwelling may have impacts at different depths by different mechanisms. In particular, the rapid warming of sea surface temperature in the eastern Pacific basin may be mainly caused by the near-surface diapycnal upwelling reduction rather than isopycnal upwelling reduction associated EUC flattening, which is important at deeper levels.

Alpheus luiszapatai, a new species of rare and colorful deep water alpheid shrimp (Crustacea: Decapoda: Alpheidae) from Arusí, Chocó Department, Pacific Coast of Colombia

Zootaxa ◽  
2018 ◽  
Vol 4403 (3) ◽  
pp. 540 ◽  
Author(s):  
GABRIEL E. RAMOS-TAFUR
Keyword(s):  
New Species ◽  
Deep Water ◽  
Pacific Coast ◽  
Morphological Characters ◽  
Species Group ◽  
Eastern Pacific ◽  
Single Female ◽  
Western Atlantic ◽  
A New Species ◽  
Alpheid Shrimp

A new species of deep water alpheid shrimp, Alpheus luiszapatai sp. nov., from Arusí, Chocó, Pacific coast of Colombia is described. The single female known was collected between the discarded bycatch of deep water shrimp trawls dedicated to the commercial fisheries of the “coliflor” shrimp Solenocera spp. This new species is placed putatively in the Alpheus brevirostris (Olivier, 1811) species group, and share some external morphological characters with Alpheus hephaestus Bracken-Grissom & Felder, 2014. It can be differentiated by the shape and ornamentation of major and minor chelipeds, the propodi and dactyli of third to fifth pereopods, the diaresis of uropodal exopod, the length of the rostral carina, color in life and bathymetric distribution. Additional comparison with another congeners pertaining to this species group complex from the eastern Pacific, western Atlantic and other oceanographic regions is discussed. A key for Alpheus brevirostris species group from the eastern Pacific is presented. 

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