SPONGE-INHABITING BARNACLES OF THE AMERICAS: A NEW SPECIES OF ACASTA (CIRRIPEDIA, ARCHAEOBALANIDAE), FIRST RECORD FROM THE EASTERN PACIFIC, INCLUDING DISCUSSION OF THE EVOLUTION OF CIRRAL MORPHOLOGY

Crustaceana ◽  
1999 ◽  
Vol 72 (5) ◽  
pp. 467-486 ◽  
Author(s):  
Rasmus Winther ◽  
Robert J. Van Syoc
Keyword(s):  
Gulf Of California ◽  
First Record ◽  
Eastern Pacific ◽  
Common Pattern ◽  
Barnacle Species ◽  
Feeding Methods ◽  
The Common ◽  
The Caribbean ◽  
Host Sponge ◽  
A New Species

AbstractSe describe Acasta newmani n. sp. del Golfo de California. Esta es la primera cita de Acasta en el Pacofico oriental. Se discuten las hip otesis sobre la correlacion entre morfologoa cirral y los metodos de alimentacion y especificidad de huespedes. Las similitudes, entre A. newmani y A. cyathus Darwin, 1854 indican que son un ejemplo del patron comun entre especies hermanas a ambos lados del istmo de Panama, en el Caribe y Pacofico oriental tropical. Se incluye una clave de las siete especies americanas de cirropedos que viven en esponjas, indicando la especie huesped y sus distribuciones. El rango de distribucion de Membranobalanus nebrias (Zullo & Beach, 1973) se extiende desde las islas Gal apagos hasta el Golfo de California. Acasta newmani n. sp. from the Gulf of California, Mexico is described. This is the first report of Acasta from the eastern Pacific. Hypotheses are discussed concerning the correlation of cirral morphology with feeding methods and host specificity. The similarities between A. newmani and Acasta cyathus Darwin, 1854 indicate that they are examples of the common pattern of trans-isthmian sibling taxa in the Caribbean and eastern tropical Pacific. A key to the seven sponge-inhabiting barnacle species of the Americas is presented with citations noting their host sponge species and known ranges in the Americas. The range of Membranobalanus nebrias (Zullo & Beach, 1973) is extended from the Galapagos Islands to the Gulf of California.

Revision of theAlpheus cristulifronsspecies complex (Crustacea: Decapoda: Alpheidae), with description of a new species from the tropical eastern Atlantic

2008 ◽  
Vol 88 (3) ◽  
pp. 543-562 ◽  
Author(s):  
Arthur Anker ◽  
Carla Hurt ◽  
Nancy Knowlton
Keyword(s):  
Gulf Of California ◽  
Molecular Data ◽  
Sensu Stricto ◽  
Eastern Pacific ◽  
Gulf Of Guinea ◽  
Western Atlantic ◽  
Sister Clade ◽  
The Caribbean ◽  
Colour Patterns ◽  
A New Species

The taxonomy of the snapping shrimpAlpheus cristulifronsRathbun, 1900, previously reported from the eastern Pacific and western and eastern Atlantic, is reviewed based on molecular data (COI), morphology and colour patterns. Three species are recognized in theA. cristulifronsspecies complex.Alpheus cristulifrons sensu strictois restricted to the western Atlantic, ranging from Florida and the Caribbean Sea to southern Brazil. The eastern PacificA. cristulifrons sensuKim & Abele, 1988 corresponds toA. utriensisRamos & Von Prahl, 1989, ranging from the Gulf of California to Colombia; this species can be separated fromA. cristulifronsby the absence of balaeniceps setae on the male minor chela and the presence of bands on the antennular and antennal flagella. The eastern AtlanticA. cristulifronssensuCrosnier & Forest, 1966 is described asA. xanthocarpussp. nov. based on recently collected material from the island of São Tomé in the Gulf of Guinea; this species differs fromA. cristulifronsby the posteriorly more extending rostral carina and the presence of conspicuous yellow spots on the carpus and chela of the second pereiopod. Molecular data suggest thatA. utriensisis the eastern Pacific sister clade to the amphi-Atlntic clade that includesA. cristulifronsandA. xanthocarpussp. nov.

A new species of sucking louse (Phthiraptera: Anoplura) from Australia, and a key to the Australian species of Hoplopleura

Zootaxa ◽  
2008 ◽  
Vol 1679 (1) ◽  
pp. 55 ◽  
Author(s):  
HAYLEE J. WEAVER ◽  
PHILIP S. BARTON
Keyword(s):  
New Species ◽  
First Record ◽  
Australian Species ◽  
The Common ◽  
A New Species

A new species of sucking louse, Hoplopleura zyzomydis, is described and illustrated from the common Australian rock rat Zyzomys argurus (Thomas, 1889) (Rodentia: Muridae), collected in northwest Queensland, Australia. This is the first record of a sucking louse from the genus Zyzomys, and its morphology is contrasted with other Australian Hoplopleura species. Hoplopleura zyzomydis is unique in having a combination of short dorsal principal thoracic setae and setae absent from paratergal plates 4–6. A key to the Australian species of Hoplopleura is presented.

scholarly journals CRUSTACEOS DECAPODOS DEL PACIFICO COLOMBIANO: LISTA DE ESPECIES Y CONSIDERACIONES ZOOGEOGRAFICAS

2016 ◽  
Vol 21 ◽  
Author(s):  
Rafael Lemaitre ◽  
Ricardo Alvarez León
Keyword(s):  
Gulf Of California ◽  
Pacific Coast ◽  
Marine Species ◽  
Eastern Pacific ◽  
Nominal Species ◽  
Review Of The Literature ◽  
Tropical Eastern Pacific ◽  
The Pacific ◽  
History Of ◽  
The Caribbean

The Pacific coast of Colombia has been poorly explored, and its fauna is one of the least known in the tropical eastern Pacific. Although knowledge of the decapod fauna from this coast has recently increased, the information is scattered in numerous sources. A review of the literature showed that 378 decapods have been reported from this coast, including the islands of Gorgona and Malpelo. The numbers of species are distributed as follows; Dendrobranchiata, 18; Caridea,79; Thalassinidea, 13; Palinura, 6; Anomura, 61; and Brachyura, 201 .Twenty-seven species are known exclusively from the Colombian coast, three of which are endemic to the islands of Malpelo or Gorgona. A list of nominal species is presented, including information on distribution, important references, and synonyms under which the taxa have been reported for this coast. A summary of the history of explorations of the Pacific coast of Colombia as it relates to decapods, is presented. Zoogeographic affinities are briefly discussed for the marine species based on published distributions. Affinities are greatest with the Gulf of California (51.8%), followed by the Galápagos (28.6%), the Indo-Pacific (8.8%), and the Caribbean- Atlantic (7.7%).

Squat lobsters (Crustacea: Decapoda: Galatheoidea and Chirostyloidea) collected during the TALUD XIV cruise in the Gulf of California, Mexico, and rediscovery of Gastroptychus perarmatus (Haig, 1968) in the eastern Pacific

Zootaxa ◽  
2012 ◽  
Vol 3418 (1) ◽  
pp. 28 ◽  
Author(s):  
MICHEL E. HENDRICKX
Keyword(s):  
Gulf Of California ◽  
California Current ◽  
First Record ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Squat Lobster ◽  
Distribution Limit ◽  
Water Species ◽  
Squat Lobsters

Seven species of squat lobsters were collected during the TALUD XIV cruise in the Gulf of California, Mexico. Gastrop-tychus perarmatus (Haig, 1968) was collected for the second time since it was described and represents a first record ofthe genus in the tropical eastern Pacific. Its association with gorgonians is also noted from color pictures taken during adeep-water dive in another cruise in the area. Janetogalathea californiensis (Benedict, 1902) was captured in four sam-pling stations, in the same area where it has been previously reported. Three species of Munida Leach, 1820 were collected(M. bapensis Hendrickx, 2000, M. mexicana Benedict, 1902, and M. tenella Benedict, 1902). Records of M. bapensis ofthis cruise combined with additional captures of this species in 2007 in the same area indicate that it is the most abundantdeep-water species of squat lobster in the northern part of the central Gulf of California. Among the species of Munida,M. tenella was second in abundance and included specimens much larger than previously known. The single record forM. mexicana fits within the currently known depth and geographical ranges. Only one species of Munidopsis Whiteaves,1874 (M. depressa Faxon, 1892) was collected, in one of the deeper sampling stations visited during the cruise and itsnorthernmost distribution limit within the Gulf of California is increased by ca two degrees of latitude. The seventh speciescollected during this survey, Pleuroncodes planipes Stimpson, 1860, is a common inhabitant of the California Current and the Gulf of California.

New Hexactinellid Sponge Chaunoplectella megapora sp. nov. (Lyssacinosida: Leucopsacidae) from Clarion-Clipperton Fracture Zone, Eastern Pacific Ocean

Zootaxa ◽  
2018 ◽  
Vol 4375 (1) ◽  
pp. 136
Author(s):  
CHUNSHENG WANG ◽  
YUAN ZHANG ◽  
BO LU ◽  
DEXIANG WANG
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Fracture Zone ◽  
First Record ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Hexactinellid Sponge ◽  
Clipperton Fracture Zone ◽  
Clarion Clipperton Fracture Zone ◽  
A New Species

The new Hexactinellid sponge Chaunoplectella megapora sp. nov. reported in this study was collected from the COMRA contract area, the western part of Clarion-Clipperton Fracture Zone (CCFZ) in the eastern Pacific Ocean at a depth of 5258 m. This sponge’s extraordinary multiporous body with the presence of unique codonhexasters, sigmatocomes, toothed discohexasters and hemidiscohexasters, as well as stellate disocohexasters, characterizes it as a new species in the genus Chaunoplectella. This report presents the first record of family Leucopsacidae at this site in the eastern Pacific Ocean. 

Redescriptions and taxonomic notes on species of the Synalpheus townsendi Coutiere, 1909 complex (Decapoda: Caridea: Alpheidae)

Zootaxa ◽  
2005 ◽  
Vol 1027 (1) ◽  
pp. 1 ◽  
Author(s):  
MARGARITA HERMOSO SALAZAR ◽  
MARY WICKSTEN ◽  
JUAN J. MORRONE
Keyword(s):  
Gulf Of Mexico ◽  
Gulf Of California ◽  
Species Complex ◽  
Distinct Species ◽  
Morphological Features ◽  
Eastern Pacific ◽  
Type Material ◽  
The Caribbean

We compared morphological features in 122 specimens of the Synalpheus townsendi species complex from the Caribbean, Gulf of Mexico and eastern Pacific. Our objectives were to examine the taxonomy of S. townsendi townsendi, S. t. mexicanus, S. t. brevispinis and S. t. peruvianus, which we felt have not been appropriately described and to reconsider their status. Based on examination of type material and different characters, we conclude that these taxa should be treated as distinct species, S. townsendi Coutière, 1909; S. mexicanus Coutière, 1909, S. brevispinis Coutière, 1909 and S. peruvianus Rathbun, 1910. We agree with Dardeau, 1986, that S. scaphoceris Coutière, 1910, is a distinct species. Specimens identified as S. townsendi productus Coutière, 1909, overlap in morphology with typical S. townsendi, and therefore are not considered to warrant designation as a separate taxon. Synalpheus mexicanus is not endemic to the Gulf of California.

scholarly journals A new species of chimaera, Hydrolagus melanophasma sp. nov. (Chondrichthyes: Chimaeriformes: Chimaeridae), from the eastern North Pacific

Zootaxa ◽  
2009 ◽  
Vol 2218 (1) ◽  
pp. 59-68 ◽  
Author(s):  
KELSEY C. JAMES ◽  
DAVID A. EBERT ◽  
DOUGLAS J. LONG ◽  
DOMINIQUE A. DIDIER
Keyword(s):  
New Species ◽  
North Pacific ◽  
Gulf Of California ◽  
Pacific Coast ◽  
Eastern Pacific ◽  
Video Footage ◽  
Pectoral Fins ◽  
Dorsal Fin ◽  
The Pacific ◽  
A New Species

A new species of chimaera, Hydrolagus melanophasma sp. nov. (Chimaeridae), is described from the eastern North Pacific. It is distinct from other eastern Pacific chimaeroids by the following characteristics: a large slightly curved dorsal fin spine extending beyond dorsal fin apex, a long second dorsal fin of uniform height throughout, large pectoral fins extending beyond the pelvic fin insertion when laid flat, trifid claspers forked for approximately one-quarter the total clasper length and a uniform black coloration throughout. The new species is compared to other eastern Pacific members of the genus Hydrolagus including H. alphus, H. colliei, H. macrophthalmus, and H. mccoskeri. Remote Operated Vehicle (ROV) video footage has identified and documented Hydrolagus melanophasma from the Gulf of California. ROV observations suggest that individuals typically occur over soft-bottom habitats or cobble patches with minimal vertical relief. This is in contrast to other eastern Pacific Hydrolagus species that tend to occur in areas of high rocky relief. The known distribution of this new species at present extends from southern California, U.S.A., along the Pacific coast of Baja California, Mexico, and into the Gulf of California.

Synalpheus amintae sp. nov., a new species of sponge–dwelling snapping shrimp (Crustacea: Decapoda: Alpheidae) from Parque Nacional Natural Isla Gorgona, Pacific Coast of Colombia

Zootaxa ◽  
2019 ◽  
Vol 4646 (1) ◽  
pp. 173-188
Author(s):  
GABRIEL E. RAMOS-TAFUR ◽  
REBECA FRANKE-ANTE
Keyword(s):  
New Species ◽  
Gulf Of California ◽  
Pacific Coast ◽  
Distal Segment ◽  
Species Group ◽  
Eastern Pacific ◽  
Valid Species ◽  
Western Atlantic ◽  
Snapping Shrimp ◽  
A New Species

A new species of sponge–dwelling snapping shrimp, Synalpheus amintae sp. nov. from the Parque Nacional Natural Isla Gorgona, Pacific coast of Colombia, is described. This new species pertains to the denominated Synalpheus “Gambarelloides” species group sensu Coutière (1909)—previously known as “Laevimanus” group. It was collected in the southern part of the Island, during episodes of extreme low tides, known locally as “puja”. Synalpheus amintae sp. nov. is closely related to the only two other known species of the S. “Gambarelloides” species group from the eastern Pacific: Synalpheus occidentalis Coutière, 1909, from Gulf of San José, Lower California, and Synalpheus mulegensis Ríos, 1992, from Bahía Concepción, Gulf of California, and can be differentiated from them by the poorly developed distal portion of pollex of the major cheliped, the armature of the distal segment of third maxilliped, and the number of acute teeth of exopodal uropod. A discriminative analysis dealing with other three species of Synalpheus from the western Atlantic, with distinctive pollex of major chela reduced, is presented. A dichotomous key was elaborated to identify the species of Synalpheus “Gambarelloides” species group from the eastern Pacific. The number of valid species described of Synalpheus from the eastern Pacific is increased to 23. 

First record of Ciocalypta Bowerbank, 1862 (Demospongiae, Suberitida, Halichondriidae) in the Eastern Pacific, with description of a new species from Peru

Zootaxa ◽  
2020 ◽  
Vol 4853 (3) ◽  
pp. 429-441
Author(s):  
YESSENIA ARROYO ◽  
EDUARDO HAJDU ◽  
PHILIPPE WILLENZ ◽  
BÁSLAVI CÓNDOR-LUJÁN
Keyword(s):  
New Species ◽  
First Record ◽  
Eastern Pacific ◽  
Central Axis ◽  
Shallow Waters ◽  
Southern Coast ◽  
Peruvian Coast ◽  
Intermediate Size ◽  
A New Species

Ciocalypta includes species with finger-shaped fistules emerging from a basal mass and skeleton composed by a central axis and secondary tracts supporting the ectosome. Although worldwide distributed, no species of this genus has been reported from the Eastern Pacific. In this study, a new Ciocalypta is described from shallow waters of the southern coast of Peru. Ciocalypta magnastyla sp. nov. is greenish white, possesses the typical fistules with oscula located at their tips, and it is characterized by the presence of large styles (370–1000/5.0–32.5 µm) in combination with oxeas of intermediate size (160–500/5.0–12.5 µm). This new species constitutes the first record of the genus for the Peruvian coast as well as for the entire Eastern Pacific. 

First record of Prionocrangon Wood Mason & Alcock, 1891 (Crustacea: Decapoda: Caridea: Crangonidae) in the East Pacific and description of a new species from western Mexico

Zootaxa ◽  
2012 ◽  
Vol 3205 (1) ◽  
pp. 63 ◽  
Author(s):  
MICHEL E. HENDRICKX ◽  
MANUEL AYÓN-PARENTE
Keyword(s):  
New Species ◽  
Larval Development ◽  
Gulf Of California ◽  
First Record ◽  
Abdominal Somite ◽  
Western Mexico ◽  
East Pacific ◽  
A New Species

A new species of the rare genus Prionocrangon is described from the central Gulf of California, Mexico. This is the firstrecord for this genus of Crangonidae in the east Pacific which is otherwise widely distributed in the Atlantic, Pacific andIndian oceans. Prionocrangon incisum sp. nov. differs from all other known species of Prionocrangon by the presence ofa deep notch near the posteroventral margin of the sixth abdominal somite. Presence of post-embryonic larvae in one partly spent female indicates that P. incisum sp. nov. exhibits abbreviated larval development.

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