On two new species of the shrimp genus Salmoneus Holthuis, 1955 (Decapoda, Caridea, Alpheidae) from the tropical eastern Pacific

Zootaxa ◽  
2015 ◽  
Vol 3957 (5) ◽  
pp. 520 ◽  
Author(s):  
ARTHUR ANKER ◽  
JUAN FELIPE LAZARUS
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Morphological Characters ◽  
Sister Species ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Ecological Data ◽  
Western Atlantic ◽  
Two New Species ◽  
Alpheid Shrimp

The present study deals two new alpheid shrimp species from the transisthmian Salmoneus ortmanni (Rankin, 1898) complex. Salmoneus alvarezi sp. nov. is described based on materials collected in Bahía Málaga, Colombia, and Punta Morales, Costa Rica, and is closely related to the western Atlantic S. ortmanni and S. wehrtmanni Anker, 2011. Salmoneus malagensis sp. nov. is described based on specimens from Bahía Málaga, Colombia, and beyond any doubts represents the eastern Pacific sister species of the western Atlantic S. carvachoi Anker, 2007. The two new species can be easily distinguished from each other by a number of morphological characters and colouration, and in addition appear to be ecologically separated. All previous records of S. ortmanni from the eastern Pacific are reassigned, some tentatively, to S. alvarezi sp. nov. based on description, illustrations or ecological data.

Two new species of Salmoneus Holthuis, 1955 with a deep dorsal depression on the carapace (Crustacea, Decapoda, Alpheidae)

Zootaxa ◽  
2011 ◽  
Vol 3041 (1) ◽  
pp. 39 ◽  
Author(s):  
ARTHUR ANKER
Keyword(s):  
New Species ◽  
Related Species ◽  
Dorsal Surface ◽  
Sister Species ◽  
Species Pair ◽  
Tropical Eastern Pacific ◽  
Closely Related Species ◽  
Western Atlantic ◽  
Two New Species ◽  
Alpheid Shrimp

Two closely related species of the alpheid shrimp genus Salmoneus Holthuis, 1955 are described as new, viz. S. excavatus sp. nov. from the tropical eastern Pacific (Panama, Colombia), and S. depressus sp. nov. from the western Atlantic (Panama, Venezuela, Barbados). The two species share the presence of a dent-like, deep, longitudinal depression on the dorsal surface of the carapace, a feature unique within Salmoneus, the Alpheidae, and possibly the infra-order Caridea, as well as several other characters, thus forming a transisthmian sister species pair.

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. 

Taxonomic changes and description of two new species for the Phyllodactylus lanei complex (Gekkota: Phyllodactylidae) in Mexico

Zootaxa ◽  
2018 ◽  
Vol 4407 (2) ◽  
pp. 151 ◽  
Author(s):  
TONATIUH RAMÍREZ-REYES ◽  
OSCAR FLORES-VILLELA
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Genetic Distance ◽  
Morphological Characters ◽  
Integrative Taxonomy ◽  
Cryptic Diversity ◽  
Ecological Data ◽  
Temperature And Precipitation ◽  
Two New Species ◽  
Taxonomic Changes

An integrative taxonomy approach was implemented based on analysis of genetic, phylogenetic, morphological and ecological data to identify the cryptic diversity within the Phyllodactylus lanei complex. At least six species can be identified, of which four are currently considered subspecies: Phyllodactylus lanei, Phyllodactylus rupinus, Phyllodactylus isabelae, Phyllodactylus lupitae and two corresponding to undescribed taxa, which are identified and described in this contribution. These differ from other Mexican geckos in several characters: genetic distance (DNAmt), position in molecular phylogeny (concatened data DNAmt+DNAnu), species tree, morphological characters such as snout-vent length, longitudinal scales, tubercles from head to tail, interorbital scales, scales across venter, third labial–snout scales and rows of tubercles across dorsum; there are also differences in their bioclimatic profiles (temperature and precipitation) and geographical distribution. The most recent studies on taxonomy and evolution of Mexican geckos (Phyllodactylus) show that the diversity of this group of reptiles is currently underestimated, suggesting that more research and conservation efforts are should be addressed at these lizards. 

scholarly journals Erratum: Systematics and biogeography of Tropical Eastern Pacific Chthamalus with descriptions of two new species (Cirripedia, Thoracica). Zootaxa 1574: 1–30 (2007)

Zootaxa ◽  
2018 ◽  
Vol 4461 (2) ◽  
pp. 300
Author(s):  
FABIO BETTINI PITOMBO ◽  
RON BURTON
Keyword(s):  
New Species ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Two New Species

We report a lapsus calami in our explanation of the etymology of the name Chthamalus southwardorum sp. nov. in Pitombo & Burton 2007. 

A review of the records of Pachycheles rugimanus A. Milne-Edwards, 1880 (Crustacea: Decapoda: Anomura: Porcellanidae) from Brazil, with the description of a new species

Zootaxa ◽  
2019 ◽  
Vol 4568 (1) ◽  
pp. 185 ◽  
Author(s):  
LUCIANE AUGUSTO DE AZEVEDO FERREIRA ◽  
MARCOS TAVARES
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
The Other ◽  
Eastern Pacific ◽  
Brazilian Coast ◽  
Galapagos Island ◽  
Western Atlantic ◽  
The Third ◽  
Cocos Island ◽  
A New Species

All previous records of Pachycheles rugimanus A. Milne-Edwards, 1880, from the Brazilian coast are reviewed and prove to represent a new species, P. coelhoi sp. nov. (from Amapá, northern Brazilian coast), and P. ackleianus A. Milne-Edwards, 1880, a species already known from Brazil (from Pará to Rio de Janeiro). The new species is described and illustrated, and compared to its most similar congeners: P. rugimanus and P. ackleianus from the western Atlantic, and P. velerae Haig, 1960, from the eastern Pacific (Galapagos Island and Cocos Island). Pachycheles coelhoi sp. nov. is distinguishable from the other three species by a suite of morphological characters, which include the ornamentation of the carapace and chelipeds, and the shape of the third thoracic sternite. All previous records of P. rugimanus from Brazil are considered invalid. 

First finding of the shrimp genus Harperalpheus Felder & Anker, 2007 in the eastern Pacific, with description of a new species from Bahía Málaga, Colombia (Malacostraca: Decapoda: Alpheidae)

Zootaxa ◽  
2017 ◽  
Vol 4329 (2) ◽  
pp. 196 ◽  
Author(s):  
ARTHUR ANKER ◽  
JUAN FELIPE LAZARUS
Keyword(s):  
New Species ◽  
Type Species ◽  
Pacific Coast ◽  
Morphological Characters ◽  
Eastern Pacific ◽  
Western Atlantic ◽  
Holotype Specimen ◽  
First Finding ◽  
A New Species ◽  
Antennular Peduncle

A new infaunal species of the rare alpheid genus Harperalpheus Felder & Anker, 2007 is described from Bahía Málaga,  Pacific coast of Colombia, based on single, incomplete holotype specimen. Harperalpheus leptodactylus sp. nov. may be easily separated from the western Atlantic type species and only other species of the genus, H. pequegnatae Felder & Anker, 2007, by several morphological characters on the first and fifth pereiopod, as well as on the antennular peduncle. 

Redescription of Pomatostegus stellatus (Abildgaard, 1789) and P. kroyeri Mörch, 1863 (Polychaeta: Serpulidae) from the Tropical American coasts

Zootaxa ◽  
2021 ◽  
Vol 4970 (3) ◽  
pp. 495-514
Author(s):  
J. PABLO SÁNCHEZ-OVANDO ◽  
J. ROLANDO BASTIDA-ZAVALA
Keyword(s):  
Costa Rica ◽  
Caribbean Sea ◽  
Morphological Characters ◽  
Identification Key ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Tropical Waters ◽  
The Pacific ◽  
Plate Shape ◽  
The Caribbean

Pomatostegus Schmarda, 1861 is a serpulid genus with three recognized species, mostly from tropical waters. Pomatostegus stellatus (Abildgaard, 1789), was described from the Caribbean Sea, and has been widely recorded in the Pacific and Indian oceans; P. kroyeri Mörch, 1863 was described from Puntarenas, Costa Rica; however, most records from the Tropical Eastern Pacific were referred to P. stellatus. In this work, the two species are redescribed using morphological characters. The main differences are in the shape of the Spirobranchus-type collar chaetae, opercular plate shape and the number of “free” circlets of spines without accompanying of opercular plates. Comments about characters of P. actinoceras Mörch, 1863, described from Philippines, and an identification key for the three species, are included. 

scholarly journals Taxonomic revision of the Mesoamerican genus Spathacanthus (Justicieae, Acanthoideae, Acanthaceae)

PhytoKeys ◽  
2020 ◽  
Vol 144 ◽  
pp. 31-55
Author(s):  
Mireya Burgos-Hernández ◽  
Gonzalo Castillo-Campos
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Cladistic Analysis ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Distribution Range ◽  
Distribution Map ◽  
Ecological Data ◽  
Southern Mexico ◽  
A New Species

Spathacanthus is a Mesoamerican genus that occurs in tropical and temperate regions from southern Mexico to Costa Rica; its taxonomy has not been updated for two decades. In view of the fact that a new species has been discovered and that the interspecific affinities in this genus have not been addressed to date, the present study aims to revise the genus Spathacanthus. Specimens of plants of this genus collected from across the distribution range and deposited in herbaria and digital databases were reviewed. In parallel, a cladistic analysis was carried out, based on morphological characters in order to examine relationships between species. Four species of Spathacanthus were recognised: one endemic to Costa Rica, another micro-endemic to Veracruz in Mexico, one more restricted to the forests of Mexico and Guatemala and the last one more widely distributed. Reflecting the previously limited knowledge of the group, many of the specimens that we studied had been misidentified. A key to differentiate these species is provided, supplemented with photographs, drawings and other illustrations, morphological descriptions, synonymy and ecological data. Results, presented here, extend the distribution range of some taxa and a distribution map is presented. The cladistic analysis recovered the genus as monophyletic, showing that S. hoffmannii and S. hahnianus are sister taxa and S. magdalenae was found to be more closely related to S. parviflorus. These plants are vulnerable to degradation and habitat loss.

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