Description of two new Caribbean species from the Hypnea musciformis complex (Cystocloniaceae, Rhodophyta)

Phytotaxa ◽  
2019 ◽  
Vol 408 (2) ◽  
pp. 85-98 ◽  
Author(s):  
FABIO NAUER ◽  
VALÉRIA CASSANO ◽  
MARIANA C. OLIVEIRA

Hypnea musciformis is a red macroalgal species with economic importance as a source for production of carrageenan. Recent phylogeographic studies revealed a hidden diversity of cryptic species, putting in check its cosmopolitan distribution. The DNA barcode marker COI-5P and plastid rbcL, in addition to morphological studies, were used to investigate the species in this complex and to compare them with specimens from other countries including the type locality in Italy. The divergences between sequences within the H. musciformis complex were significantly high for both markers. Based on these analyses two new species are described, Hypnea caraibica Nauer, Cassano & M.C. Oliveira sp. nov. and Hypnea schneideri Nauer, Cassano & M.C. Oliveira sp. nov. Hypnea caraibica seems to be a common, widespread species in the Gulf of Mexico and the Caribbean and was recently introduced into Hawaii. This species was unnoticed due to lack of phylogeographic studies in the region. Hypnea schneideri seems to be more geographically restricted, but further surveys are needed to understand the distribution of this species. Because the identification of Hypnea species is complicated by their relatively simple and plastic morphology, DNA barcoding surveys and other molecular studies are essential to uncover hidden biodiversity in the genus and to supplement traditional studies based on morphology.

Zootaxa ◽  
2018 ◽  
Vol 4446 (1) ◽  
pp. 125
Author(s):  
SARAH C. CREWS

Two new species of Selenops, S. anacaona sp. nov. (♀) and S. caonabo sp. nov. (♀), are described from the Dominican Republic on the Caribbean island of Hispaniola. These two new species increase the number of endemic Selenops on Hispaniola to 13, surpassing Cuba, which currently has 11 endemic species. Additionally, the male of S. pensilis Muma, 1953 from Hispaniola is described, as well as the male of S. petrunkevitchi Alayón, 2003 from Jamaica. Full distribution records are given for the new species and the newly described males, and new records are provided for the following species: S. aequalis Franganillo, 1935, S. bocacandensis Crews, 2011, S. candidus Muma, 1953, S. micropalpus Muma, 1953, S. morro Crews, 2011, S. simius Muma, 1953, S. souliga Crews, 2011, and S. submaculosus Bryant, 1940. 


2018 ◽  
Vol 23 (12) ◽  
pp. 2288 ◽  
Author(s):  
Jacek Dabert ◽  
Serge V. Mironov ◽  
Marián Janiga

Two new species of the genus Analges (Astigmata: Analgoidea) are described from two species of accentors (Passeriformes: Prunellidae): Analges himalayanus sp. nov. from the Altai Accentor P. himalayana (Blyth), and A. slovakiensis sp. nov. from the Alpine Accentor Prunella collaris (Scopoli). Both species are closely related to A. bidentatus Giebel, 1871 described from the Dunnock Prunella modularis (Linnaeus). We extended the standard morphological descriptions of feather mites by species delimitation analyses carried out on DNA barcode sequences.


Zootaxa ◽  
2018 ◽  
Vol 4444 (4) ◽  
pp. 437 ◽  
Author(s):  
DMITRY SIDOROV ◽  
ZHONGE HOU ◽  
BORIS SKET

Three new species of the family Gammaridae—Gammarus troglomorphus, sp. n., G. parvioculatus, sp. n. from Lebap Province of Turkmenistan and Tadzocrangonyx alaicus, sp. n. from Batken Region of Kyrgyzstan are described and illustrated. Morphological studies of a closely related Turkmenistan population of G. cf. subaequalis-Garlyk, probably conspecific with Gammarus subaequalis Martynov, 1935 was provided. The affinity of new species to concerned taxa is discussed. To define phylogenetic position of mentioned species DNA barcode data are obtained. Gammarus troglomorphus and G. parvioculatus are close neighbors but exceedingly different morphologically. Gammarus troglomorphus is a troglobiont; G. parvioculatus is an eutroglophile, but with exception of slightly smaller eyes, not troglomorph. Both found only within small areas in the extreme East of Turkmenistan. Gammarus cf. subaequalis-Garlyk seems to extend from the same region far into the eastern Kyrgyzstan. 


Zootaxa ◽  
2020 ◽  
Vol 4786 (2) ◽  
pp. 254-260
Author(s):  
BRUNO MICHEL ◽  
JEAN ETIENNE

After the revision of the genus Holopothrips provided by Lindner et al. (2018), the specimens of Holopothrips kept in the CIRAD/CBGP collection collected in Guadeloupe were re-examined. Two species previously identified as Holopothrips tenuis and Holopothrips sp. are described here as H. brevisetus sp. n. and H. guadeloupensis sp. n. Holopothrips ananasi is here removed from the list of species reported to Guadeloupe after re-examination of labelled specimens. Information on all the species of Holopothrips found in Guadeloupe, and an identification key to the species of Holopothrips recorded from the Caribbean are provided. 


Zootaxa ◽  
2009 ◽  
Vol 2068 (1) ◽  
pp. 27-46 ◽  
Author(s):  
YI-TE LAI ◽  
CHIH-HAN CHANG ◽  
JIUN-HONG CHEN

In this study, two new species of Helobdella leeches, Helobdella octatestisaca n. sp. and Helobdella melananus n. sp., and a newly recorded species, Helobdella europaea, are reported. Morphological characters and DNA barcode analysis were used to identify the three new species. The differences between these species and other morphologically congeneric species were also compared. In addition, the potential ecological impact of these species was discussed and a checklist of the hirudinea fauna in Taiwan, including eight species in Family Glossiphoniidae, four in Hirudinidae, two in Haemopidae, two in Haemadipsidae, and two in Salifidae, was provided.


Phytotaxa ◽  
2018 ◽  
Vol 379 (1) ◽  
pp. 27
Author(s):  
GÉRALD GRUHN ◽  
PABLO ALVARADO ◽  
NILS HALLENBERG ◽  
MÉLANIE ROY ◽  
RÉGIS COURTECUISSE

Two new species of Sistotremastrum collected in French West Indies and French Guyana are described and illustrated. Morphological studies and molecular sequence data from two ribosomal DNA regions (ITS and 28S rDNA) support the recognition of S. fibrillosum and S. aculeocrepitans, two species characterized by their hyphal cords and basidia with 4 sterigmata.


Zootaxa ◽  
2006 ◽  
Vol 1298 (1) ◽  
pp. 1 ◽  
Author(s):  
FREDDY BRAVO ◽  
DANILO CORDEIRO ◽  
CINTHIA CHAGAS

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.


Zootaxa ◽  
2008 ◽  
Vol 1761 (1) ◽  
pp. 17
Author(s):  
RACHAEL A. KING

Two new species of leptanthurid isopods in the genus Accalathura are described: A. schotteae, from collections off Panama and A. kensleyi from Belize (material previously identified as A. crenulata in the collections of the National Museum of Natural History, Washington D.C.). The type species of the genus, Calathura crenulata Richardson, 1901, is redescribed from type material and a key to the species of Accalathura in the Caribbean and an adjacent region is given.


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