A revision of the genus Saccoglossus (Hemichordata: Enteropneusta: Harrimaniidae) with taxonomic descriptions of five new species from the Eastern Pacific

Zootaxa ◽  
2010 ◽  
Vol 2483 (1) ◽  
pp. 1 ◽  
Author(s):  
C. B. Cameron ◽  
C. Deland ◽  
T. H. Bullock
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Eastern Pacific ◽  
Summary Table ◽  
Taxonomic Descriptions ◽  
North Eastern ◽  
Pacific Species

Here we describe five new North Eastern Pacific species of acorn worms in the genus Saccoglossus (S. porochordus, S. rhabdorhyncus, S. shumaginensis, S. sonorensis, and S. palmeri) on the basis of morphology. Notes on the habit and localization of each species are provided. A summary table lists the morphological characters defining the five new species and ten previously described ones in the genus Saccoglossus. Observation on the biogeography of Enteropneusta suggests that it is an ancient and declining group.

scholarly journals A taxonomic revision of the family Harrimaniidae (Hemichordata: Enteropneusta) with descriptions of seven species from the Eastern Pacific

Zootaxa ◽  
2010 ◽  
Vol 2408 (1) ◽  
pp. 1 ◽  
Author(s):  
C. DELAND ◽  
C. B. CAMERON ◽  
K. P. RAO ◽  
W. E. RITTER ◽  
T. H. BULLOCK
Keyword(s):  
New Species ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Eastern Pacific ◽  
Nomen Nudum ◽  
Phylogenetic Hypothesis ◽  
Number Of Species ◽  
Dichotomous Key ◽  
The Family ◽  
The Status

The family Harrimaniidae (Hemichordata: Enteropneusta) is revised on the basis of morphological characters. The number of harrimaniid genera is increased to nine by the addition of Horstia n. gen., Mesoglossus n. gen., Ritteria n. gen. and Saxipendium, a genus previously assigned to the monospecific family Saxipendiidae. The number of species is increased to 34, resulting from the description of five new species from the eastern Pacific — Horstia kincaidi, Mesoglossus intermedius, M. macginitiei, Protoglossus mackiei and Ritteria ambigua. A description is supplied for a sixth harrimaniid species, Stereobalanus willeyi Ritter & Davis, 1904, which previously had the status of a nomen nudum. Four harrimaniids previously assigned to the genus Saccoglossus are transfered to the genus Mesoglossus — M. bournei, M. caraibicus, M. gurneyi and M. pygmaeus, while Saccoglossus borealis is reassigned to the genus Harrimania. Notes on habitat and zoogeography are included for the seven foregoing species and a table of diagnostic characters for existing and new species and a dichotomous key to the enteropneust families and harrimaniid genera are provided. Finally, a phylogenetic hypothesis concerning the Harrimaniidae is postulated, with discussion on the evolution of the group.

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. 

Monogenoidean parasites of Acestrorhynchus falcatus (Characiformes: Acestrorhynchidae) from Pará, Brazil: species of Diaphorocleidus and Rhinoxenoides n. gen. (Monogenoidea: Dactylogyridae)

2018 ◽  
Vol 93 (2) ◽  
pp. 208-219
Author(s):  
J.F. Santos Neto ◽  
N.G.S. Costa ◽  
G.B. Soares ◽  
M.V. Domingues
Keyword(s):  
New Species ◽  
Accessory Piece ◽  
Sister Group ◽  
Copulatory Organ ◽  
Morphological Characters ◽  
Ventral Anchor ◽  
Dorsal Anchor ◽  
North Eastern ◽  
Group Relationships ◽  
One New Species

AbstractTwo new species of Diaphorocleidus and one new species of Rhinoxenoides n. gen. are described from the gills of Acestrorhynchus falcatus (Bloch) from rivers of north-eastern Pará, Brazil. Diaphorocleidus jaymedeloyolai n. sp. is characterized by a male copulatory organ (MCO) possessing three counterclockwise coils; similar anchors with subtriangular superficial roots; a ventral bar with posteromedial projection; and hooks of pairs 1, 4 and 7 approximately three times longer than hook pair 5. Diaphorocleidus sclerocolpus n. sp. differs from its congeners by a dual-branched accessory piece articulated with the MCO and a sclerotized tubular vagina with a bottle-shaped vestibule. Rhinoxenoides n. gen. is proposed and is characterized by possessing: MCO sclerotized with clockwise coils; an accessory piece articulated to the base of MCO; a sinistroventral vaginal aperture; ventral anchor with conspicuous roots; dorsal anchor with superficial root five times longer than deep root; and absence of dorsal bar. The proposal of Rhinoxenoides n. gen. is also supported by its phylogenetic relationship with Protorhinoxenus prochilodi and species of Rhinoxenus, using 16 morphological characters, which resulted in the following hypothesis of sister-group relationships: Rhinoxenoides n. gen. [Protorhinoxenus (Rhinoxenus curimatae (R. nyttus (R. bulbovaginatus (R. guianensis, R. piranhus, R. euryxenus (R. arietinus, R. anaclaudiae)))))].

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. 

The Madagascan genus Dolurgocleptes Schedl (Coleoptera: Curculionidae, Scolytinae): description of a new species and transfer to the tribe Polygraphini

Zootaxa ◽  
2009 ◽  
Vol 2014 (1) ◽  
pp. 41-50 ◽  
Author(s):  
BJARTE H. JORDAL
Keyword(s):  
New Species ◽  
Cytochrome Oxidase ◽  
Elongation Factor ◽  
Morphological Characters ◽  
Molecular Data ◽  
Cytochrome Oxidase I ◽  
Elongation Factor 1Α ◽  
North Eastern ◽  
A New Species

A new species of the Malagasy genus Dolurgocleptes Schedl, 1965 is described and illustrated. This is the second species known for the genus, which is restricted to the montane rainforests of north-eastern Madagascar. Dolurgocleptes is transferred from the tribe Dryocoetini to Polygraphini and placed near Polygraphus Erichson, based on examination of internal and external morphological characters and molecular data from Elongation Factor-1α and Cytochrome Oxidase I.

scholarly journals Morphological and molecular characterization of a new species of Atlantic stalked barnacle (Scalpelliformes: Pollicipedidae) from the Cape Verde Islands

2011 ◽  
Vol 91 (7) ◽  
pp. 1537-1545 ◽  
Author(s):  
Javier Quinteiro ◽  
Jorge Rodríguez-Castro ◽  
Pedro López ◽  
Luis F. López-Jurado ◽  
Nieves González-Henríquez ◽  
...  
Keyword(s):  
New Species ◽  
Charles Darwin ◽  
Taxonomic Status ◽  
Molecular Data ◽  
Cape Verde ◽  
Eastern Pacific ◽  
Cape Verde Islands ◽  
The North ◽  
North Eastern ◽  
Central Eastern

The taxonomy of pedunculate cirripedes belonging to the genus Pollicipes has essentially remained unchanged since Charles Darwin described them in his exhaustive work on the Cirripedia. This genus includes three species of stalked barnacles: Pollicipes pollicipes in the north-eastern Atlantic, P. polymerus in the north-eastern Pacific and P. elegans in the central-eastern Pacific. However, a population genetics analysis of P. pollicipes suggested the presence of a putative cryptic species collected from the Cape Verde Islands in the central-eastern Atlantic. This study examines the morphology of these genetically divergent specimens and compares them with that of representative Atlantic samples of the biogeographically closely related P. pollicipes and with the poorly described P. elegans. Molecular data, including mitochondrial COX1 and nuclear ribosomal interspaces sequences, were obtained for all species of the genus Pollicipes. Morphological distinctiveness, diagnostic characters, congruent divergence level and monophyletic clustering, at both nuclear and mitochondrial loci support the taxonomic status of this new species, Pollicipes darwini.

Redescription of Microprosthema semilaeve (von Martens, 1872) (Decapoda: Stenopodidea: Spongicolidae) and description of a new species of Microprosthema from Dry Tortugas, Florida

Zootaxa ◽  
2013 ◽  
Vol 3630 (3) ◽  
pp. 467-488 ◽  
Author(s):  
JOSEPH W. GOY ◽  
JOEL W. MARTIN
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Type Material ◽  
Undescribed Species ◽  
Western Atlantic ◽  
Dry Tortugas ◽  
Pacific Species ◽  
A New Species

Microprosthema semilaeve, a fairly common spongicolid shrimp of reefal habitats in the Western Atlantic and Caribbean is redescribed and figured based on type material and an additional 78 specimens from the majority of its known zoogeographical range. It is distinguished from the Indo-Pacific species of M. validum and an undescribed species of Microprosthema with which it has been confused in the literature by a number of morphological characters. A new species of Microprosthema from deeper waters off the Dry Tortugas and closely related to M. inornatum Manning & Chace, 1990, is described and illustrated. Microprosthema jareckii Martin, 2002 is synonymized with M. manningi Goy & Felder, 1988. A key to the Western Atlantic species of Microprosthema is presented.

scholarly journals Chrysogorgia from the New England and Corner Seamounts: Atlantic–Pacific connections

2011 ◽  
Vol 92 (5) ◽  
pp. 911-927 ◽  
Author(s):  
Eric Pante ◽  
Les Watling
Keyword(s):  
New Species ◽  
New England ◽  
Morphological Characters ◽  
Morphological Data ◽  
Remotely Operated Vehicles ◽  
Exceptional Preservation ◽  
The Pacific ◽  
Pacific Species

Recent exploration of the New England and Corner Seamounts revealed four new species of Chrysogorgia, described here using a combination of molecular and morphological data. These four species are characterized by a sinistral spiral, a character that, with one known exception, has only been reported for Pacific species. In addition, two species have a sclerite composition typical of the Pacific (‘squamosae typicae’). This faunal connection between the Atlantic and the Pacific is confirmed by analysis of the mitochondrial msh1 gene. The exceptional preservation of specimens collected with remotely operated vehicles allows us to discuss the effect of growth on some morphological characters.

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. 

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