New and rare micro-pagurid hermit crabs (Crustacea: Anomura: Paguridae) from the Caribbean Sea and Gulf of Mexico

Zootaxa ◽  
2020 ◽  
Vol 4722 (4) ◽  
pp. 301-325
Author(s):  
RAFAEL LEMAITRE
Keyword(s):  
New Species ◽  
Gulf Of Mexico ◽  
Florida Keys ◽  
Caribbean Sea ◽  
Hermit Crabs ◽  
Caribbean Region ◽  
Bocas Del Toro ◽  
The Family ◽  
Two New Species ◽  
The Caribbean

Six species of hermit crabs of the family Paguridae from the Caribbean Sea and Gulf of Mexico region, including two new species, Anisopagurus asteriscus sp. nov. and Pagurus alarius sp. nov., are documented. The two new species are described, and recognition characters summarized for the four previously known species. Reports of the latter, Nematopaguroides fagei Forest & de Saint Laurent, 1968, N. karukera Lemaitre, Felder & Poupin, 2017, Paguriscus robustus Lemaitre, Felder & Poupin, 2017, and Pylopaguridium markhami McLaughlin & Lemaitre, 2001, represent range extensions for all four species. Color photographs are included for four of the species, as well as remarks on their taxonomy and distributions. All six species included can be categorized as micro-pagurids (with shield length rarely exceeding 2.0 mm), and were collected from cryptic reef habitats in Bocas del Toro, Panama; the French Antillean island of Guadeloupe; and the Gulf of Mexico coasts of Louisiana, Yucatán, and Florida Keys. The discovery of these new or rare species supports the conclusion of recent studies that the diversity of pagurids from the Caribbean region has yet to be fully realized. 

scholarly journals Svenzea, a new genus of Dictyonellidae (Porifera: Demospongiae) from tropical reef environments, with description of two new species

2002 ◽  
Vol 71 (4) ◽  
pp. 171-176 ◽  
Author(s):  
Belinda Alvarez ◽  
Rob W.M. van Soest ◽  
Klaus Rützler
Keyword(s):  
New Species ◽  
New Genus ◽  
Caribbean Sea ◽  
Taxonomic Position ◽  
The Family ◽  
Two New Species ◽  
Reef Environments ◽  
Tropical Reef ◽  
The Caribbean ◽  
Developmental Features

The new genus Svenzea is created to group three sponge species from tropical reef environments of the Caribbean Sea and Indonesia: Pseudaxinella (?) zeai Alvarez, Van Soest & Rützler, Svenzea cristinae n. sp. and S. devoogdae n. sp. The genus shows affinities with members of both Halichondrida and Haplosclerida but it is assigned to the family Dictyonellidae based on shared microanatomical and developmental features. The higher taxonomic position of Svenzea is a subject for future investigations.

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. 

New species of Pseudonereis Kinberg, 1865 (Polychaeta: Nereididae) from the Atlantic Ocean, and a review of paragnath morphology and methodology

Zootaxa ◽  
2018 ◽  
Vol 4471 (2) ◽  
pp. 245 ◽  
Author(s):  
VÍCTOR M. CONDE-VELA
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Gulf Of Mexico ◽  
Caribbean Sea ◽  
Distinct Species ◽  
Eastern Pacific ◽  
Type Locality ◽  
Gulf Of Guinea ◽  
Undescribed Species ◽  
The Caribbean

Pseudonereis gallapagensis Kinberg, 1865 and P. variegata (Grube & Kröyer in Grube, 1858) are the only two species of this genus commonly recorded along Atlantic American coasts, but their type localities are in the Eastern Pacific, and their morphology differs. Two new Pseudonereis species are described from Eastern Mexico: P. brunnea sp. n. from the Gulf of Mexico, and P. citrina sp. n. from the Caribbean Sea, previously confused with P. gallapagensis. In order to facilitate comparisons, descriptions based on specimens from near the type locality for P. gallapagensis (Peru and Ecuador), and topotypes for P. variegata (Valparaiso, Chile), are included. Based on these comparisons and current descriptions, the synonymies of Nereis ferox Hansen, 1882 described from Brazil with P. variegata, and of Pseudonereis formosa Kinberg, 1865 described from Hawaii with P. gallapagensis, are rejected. Consequently, both are regarded as distinct species and revised diagnoses are provided for them. The record of P. ferox from the Gulf of Guinea proved to be an undescribed species, and is herein described as P. fauveli sp. n. The number of paragnath rows in nereidid pharynx areas VII–VIII has been interpreted in several ways, leading to confusion; an alternative method to determine the number of bands and rows is proposed. The midventral region, the division of areas VII–VIII in furrow and ridge regions, and the description of the arrangement based on the pattern of paragnaths in such regions, are proposed. Further, the terms shield-shaped and pointed (P-bars) bars are redefined, and a new term, crescent-shaped bars, is proposed for paragnaths in the areas VI in some Pseudonereis and Perinereis species. A key for all Pseudonereis species is also included. 

Two new species and new records of Psychoda Latreille (Diptera: Psychodidae: Psychodinae) from Brazil, with comments on supraspecific classification of the genus

Zootaxa ◽  
2006 ◽  
Vol 1298 (1) ◽  
pp. 1 ◽  
Author(s):  
FREDDY BRAVO ◽  
DANILO CORDEIRO ◽  
CINTHIA CHAGAS
Keyword(s):  
Latin America ◽  
New Species ◽  
New Records ◽  
Caribbean Region ◽  
Southern Brazil ◽  
New Classification ◽  
Two New Species ◽  
The Caribbean ◽  
First Time

Two new species of Brazilian Psychoda Latreille are described, and Psychoda alternata Say and P. zetoscota Quate are recorded for the first time from Brazil. Psychoda divaricata Duckhouse, already described from southern Brazil, was recorded in the northeastern part of that country, as well as in the eastern Amazon region. The supraspecific classification proposed for the species of Psychoda according to Quate (= Psychodini of Jeñek) are discussed. A new classification is suggested that considers only one genus, Psychoda, divided into 12 subgenera: subgenus Psychoda Latreille, subgenus Copropsychoda Vaillant, subgenus Falsologima Jeñek & Harten, subgenus Psychodula Jeñek, subgenus Psychomora Jeñek, subgenus Psychana Jeñek & Harten, subgenus Logima Eaton, subgenus Tinearia Schellenberg, subgenus Chodopsycha Jeñek, subgenus Ypsydocha Jeñek, subgenus Psychodocha Jeñek, and subgenus Psycha Jeñek. A list of the Psychoda species from Latin America and the Caribbean region is presented.

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