New genus and four new species of anthuroid isopods (Crustacea: Peracarida) from southern Mexican Pacific

Zootaxa ◽  
2021 ◽  
Vol 5048 (1) ◽  
pp. 31-57
Author(s):  
UBALDO JARQUÍN-MARTÍNEZ ◽  
MARÍA DEL SOCORRO GARCÍA-MADRIGAL
Keyword(s):  
New Species ◽  
New Genus ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Mexican Pacific ◽  
Cuticular Structures

Anthuroid Isopoda are a poorly studied crustacean taxon in the Tropical Eastern Pacific, barely 21 species recorded, while to the southern Mexican Pacific, only eight species have been recorded. This study aims to increase knowledge of the species that inhabit the region. One hundred and one specimens from seven localities of the coast of Guerrero and Oaxaca were examined. Four new species were identified, belonging to three genera and two families: Negoescuanthura bastidai n. gen., n. sp., Colanthura gabinae n. sp., Paranthura amorensis n. sp. and P. tientai n. sp. A new genus is established, Negoescuanthura, very close to the genus Accalathura; the former is characterized by sucker-like cuticular structures on the antennal peduncle, while the latter lack these structures.  

scholarly journals First records and two new species of sipunculans (Sipuncula) from the Southern Mexican Pacific

2021 ◽  
Vol 740 ◽  
pp. 77-117
Author(s):  
Itzahí Silva-Morales ◽  
Julio D. Gómez-Vásquez
Keyword(s):  
New Species ◽  
Species Composition ◽  
New Records ◽  
Identification Key ◽  
Eastern Pacific ◽  
Nominal Species ◽  
Tropical Eastern Pacific ◽  
Mexican Pacific ◽  
Two New Species

Sipunculans are a poorly studied group in the Tropical Eastern Pacific. For the Southern Mexican Pacific (SMP) there is only one record of a sipunculan species. The main objective of this work was to determine the species composition of the phylum Sipuncula present in the SMP. The study area covered three Mexican states: Guerrero, Oaxaca and Chiapas; specimens from 28 localities were examined from both intertidal and subtidal zones. A total of 551 specimens were reviewed, from which 11 species were identified. Five of them have previously been recorded in the Tropical Eastern Pacific (TEP): Apionsoma (A.) hespera comb. nov., A. (Edmondsius) pectinatum, Aspidosiphon (A.) elegans, Phascolosoma (P.) puntarenae and Themiste (T.) hennahi; four species are similar to nominal species: Sipunculus (S.) cf. polymyotus, Siphonosoma cf. vastum, Siphonosoma cf. cumanense and Phascolosoma (P.) cf. perlucens; and two new species are described: Aspidosiphon (Paraspidosiphon) cutleri sp. nov. and Aspidosiphon (Paraspidosiphon) pastori sp. nov. A checklist and an identification key for all sipunculan species from the TEP are presented. The checklist includes 53 taxa, 25 of which are questionable records. This work generated 11 new records of sipunculans in the SMP and five new records in the TEP.

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 new genus and seven new species of chrysopetalids (Annelida, Chrysopetalidae) from the Tropical Eastern Pacific

Zootaxa ◽  
2021 ◽  
Vol 5068 (1) ◽  
pp. 1-59
Author(s):  
CHRISTOPHER CRUZ-GÓMEZ
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Pacific Coast ◽  
Eastern Pacific ◽  
New Combination ◽  
Tropical Eastern Pacific ◽  
Northwestern Mexico ◽  
Scientific Collections ◽  
The Tropical Pacific

Chrysopetalids annelids have been little studied in the Tropical Eastern Pacific (TEP), with only 24 species recorded in the region. Most records are from northwestern Mexico and Costa Rica, leaving many sites along the Tropical Pacific coast of America unexplored. Furthermore, there are species recorded and described from the region with problems in their status, including questionable records, modest illustrations or descriptions, and lost type material. This paper aims to improve the knowledge of this family in the TEP. Almost 290 specimens were revised, provided from five scientific collections, covering 51 sites along the TEP and nearby. Two subfamilies: Calamyzinae and Chrysopetalinae, nine genera and 20 species were determined. Of these, ten species have been previously recorded, three are indeterminable and seven are new species: Paleanotus karlyae n. sp., Arichlidon mucropaleum n. sp., Bhawania bastidai n. sp., Chrysopetalum mexicanum n. sp., C. tovarae n. sp. A new genus is proposed, Bhawatsonia n. gen. which includes two new species, B. fusa n. sp. as its type species, B. nenoae n. sp. and, the new combination and neotype of B. purpurea n. comb. An updated and revised checklist of all chrysopetalids species recorded in the region is included, currently composed of 16 genera, 30 species, and four morphospecies.  

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. 

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