A new species of Deutella Mayer 1890 (Crustacea: Amphipoda) from the Mexican Pacific coast

Zootaxa ◽  
2019 ◽  
Vol 4612 (4) ◽  
pp. 581
Author(s):  
LUCY C. ALARCÓN-ORTEGA ◽  
JOSÉ L. CARBALLO
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
First Record ◽  
Shallow Waters ◽  
Tropical Eastern Pacific ◽  
Mexican Pacific ◽  
Fourth Report ◽  
The Pacific ◽  
The Pacific Ocean ◽  
A New Species

A new species of caprellid, Deutella mazatlanensis n. sp., is described from Mazatlán Bay, (east Pacific México). Deutella mazatlanensis was found associated with bryozoans, hydroids and sponges in shallow waters. The new species can be differentiated from the remaining species of the genus mainly by the dorsal, anteriorly directed projection on the head; the two dorsal projections and a lateral acute projection anteroventrally projected on pereonite 2 and gnathopod 2 in males. The presence of this species on the Mexican Pacific coast, constitutes the fourth report of Deutella genus for the Pacific Ocean and the first record from the tropical Eastern Pacific. 

Description of a new species of Hirsutonuphis (Annelida: Onuphidae) from the Mexican Pacific, with notes on the world distribution of the genus

2013 ◽  
Vol 93 (7) ◽  
pp. 1777-1783 ◽  
Author(s):  
Alejandra Estrella-Ruiz ◽  
Pablo Hernández-Alcántara ◽  
Vivianne Solís-Weiss
Keyword(s):  
New Species ◽  
Gulf Of California ◽  
Colour Pattern ◽  
Tropical Eastern Pacific ◽  
Mexican Pacific ◽  
The Third ◽  
The Pacific ◽  
The Pacific Ocean ◽  
World Distribution ◽  
A New Species

A new species of Hirsutonuphis (Annelida: Onuphidae) is described from the continental shelf of the Gulf of California, Mexican Pacific. Hirsutonuphis paxtonae sp. nov. is easily distinguished from eight previously described species belonging to this genus, by the bi- and tri-dentate pseudocompound hooded falcigers on the first 5–6 chaetigers, the pectinate chaetae from chaetigers 6–11, the bidentate subacicular hooded hooks from chaetigers 18–21, and its colour pattern: a dark transverse band in the dorsal part of the peristomium and on each chaetiger, which gradually fades from chaetigers 12–27. Most species of Hirsutonuphis have been found in the Pacific Ocean, and more particularly in Australian waters, although this new onuphid is the third species of the genus described from the Mexican Pacific, in the Tropical Eastern Pacific. A taxonomic key is provided for all the species of the genus.

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. 

First record of Cladocroce (Porifera: Haplosclerida: Chalinidae) from the Eastern Pacific ocean with the description of Cladocroce reina sp. nov.

Zootaxa ◽  
2010 ◽  
Vol 2603 (1) ◽  
pp. 65
Author(s):  
JOSE MARIA AGUILAR-CAMACHO ◽  
JOSE LUIS CARBALLO
Keyword(s):  
Pacific Coast ◽  
Current Knowledge ◽  
First Record ◽  
Shallow Waters ◽  
Principal Characteristic ◽  
Mexican Pacific ◽  
Fiber Tracts ◽  
Deep Waters ◽  
The Family ◽  
A New Species

Chalinidae is a family of haplosclerid sponges with a delicate reticulated chaonosomal skeleton of uni-, pauci- or multispicular primary lines which are connected by unispicular secondary lines, and with an ectosomal skeleton, if present, formed by a regular hexagonal, unispicular, tangential reticulation (Weerdt 2002). Currently, the family harbors only five valid genera (Chalinula, Cladocroce, Dendrectilla, Dendroxea and Haliclona; Soest et al. 2008), although recent molecular studies suggest that a new rearrangement of the present classification is needed (Redmond et al. 2007). Cladocroce was described by Topsent (1892) from specimens collected in the Atlantic Ocean. The principal characteristic of this genus is the presence of multispicular fiber tracts with a rather dense subisotropic reticulation in between (Weerdt 2002). After that, 10 species have been described, most of them from deep waters and cold climates (Putchakarn et al. 2004). Only three species have been found living in shallow waters: C. aculeata Pulitzer-Finali, 1982 from the Great Barrier Reef, C. burapha Putchakarn et al., 2004 from the Gulf of Thailand, and C. tubulosa Pulitzer-Finali, 1993 from the port of Mombasa, in Kenya. Sponge taxonomy studies in the Mexican Pacific coast have been focused mainly on hadromerids, and particularly on boring sponges (Carballo et al. 2008), and the current knowledge of haplosclerids is very scarce (Cruz-Barraza & Carballo 2006). In this paper, a new species of Cladocroce is described and compared with the other species recorded worldwide. With this contribution the genus Cladocroce increases to 12 species.

scholarly journals A new species of Leptogorgia (Cnidaria: Anthozoa: Octocorallia) from Golfo Dulce, Pacific, Costa Rica

Zootaxa ◽  
2012 ◽  
Vol 3182 (1) ◽  
pp. 65 ◽  
Author(s):  
ODALISCA BREEDY ◽  
HECTOR M. GUZMAN
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Pacific Coast ◽  
Single Species ◽  
San Jose ◽  
Ongoing Research ◽  
Deep Waters ◽  
The Pacific ◽  
The Pacific Ocean ◽  
A New Species

The description of this single species is necessary to facilitate the publication of ongoing research conducted by Rita Vargas at the Museum of Zoology, University of Costa Rica, dealing with the associated microfauna. Presently 24 species of Leptogorgia have been reported for the eastern Pacific, 13 of which have been found in Costa Rica (Breedy & Cortés 2011). Although octocoral surveys have been conducted as part of biodiversity studies, there is no published information regarding the occurrence of this taxon in Golfo Dulce. Here we describe a new species of Leptogorgia and compare it with other Leptogorgia species with similar characteristics. Golfo Dulce is a bay located on the southern Pacific coast of Costa Rica. It is about 50 km long, 10–15 km wide, and covers an area of approximately 680 km². The inner part of Golfo Dulce has a maximum depth of slightly over 200 m with a 60 m deep sill at the opening to the Pacific Ocean (Cortés 1999). It has been considered a tropical fjord because of the bathymetry and the presence of anoxic deep waters (Cortés 1999, Svendsen et al. 2006). Specimens were collected by Scuba diving, preserved in 70% ethanol or air dried, and treated and identified following the current methodology (Breedy & Guzman 2002). The holotype and paratypes are deposited in the Museo de Zoología, Universidad de Costa Rica (MZUCR, formerly UCR), San José, P.O. Box 11501-2060, Costa Rica.

First record of Hyalascus (Hexactinellida: Rossellidae) from the Indian Ocean, with description of a new species from a volcanic seamount in the Andaman Sea

Zootaxa ◽  
2010 ◽  
Vol 2667 (1) ◽  
pp. 64 ◽  
Author(s):  
SABYASACHI SAUTYA ◽  
KONSTANTIN R. TABACHNICK ◽  
BABAN INGOLE
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Indian Ocean ◽  
First Record ◽  
Andaman Sea ◽  
The Pacific ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
Back Arc ◽  
A New Species

A new species of Hyalascus is described from the submarine volcanic crater seamount of Andaman Back-arc Basin, Indian Ocean. The genus was previously known in the Pacific Ocean only.

First record of Plakortis Schulze (Porifera: Homosclerophorida) from the Northeast Pacific coast, with the description of Plakortis albicans sp. nov.

Zootaxa ◽  
2005 ◽  
Vol 868 (1) ◽  
pp. 1 ◽  
Author(s):  
JOSÉ A. CRUZ-BARRAZA ◽  
JOSÉ L. CARBALLO
Keyword(s):  
Pacific Coast ◽  
First Record ◽  
Single Class ◽  
Mexican Pacific ◽  
Northeast Pacific ◽  
The Pacific ◽  
Drainage Canals ◽  
Cryptic Habitats ◽  
East Pacific Ocean ◽  
A New Species

A new species of Plakortis Schulze, 1880 from the Pacific coast of Mexico is described, which constitutes the first record of the Plakortis genus in the Northeast Pacific coast, and the first record of Homosclerophorida in the Mexican Pacific coast. Plakortis albicans sp. nov. is characterized by its white or ivory color, by a surface sculpted by subectosomic drainage canals, and by the morphological details of its skeleton, such as the presence of diods and triods in one single class, and a tangential alveolar ectosomal skeleton formed mostly by smaller diods. The only species known in the genus Plakortis from the East Pacific Ocean is Plakortis galapagensis Desqueyroux-Faúndez & van Soest, 1997, which differs from Plakortis albicans sp. nov. mainly by having diods in two distinct size classes. So far, P. albicans is only known in one locality (Mazatlán Bay), where it is relatively abundant in cryptic habitats such as under rock.

A new species of Metaruncina (Gastropoda: Heterobranchia: Runcinida) from Vietnam with a discussion on the so-called rudimentary radula in runcinids

Zootaxa ◽  
2021 ◽  
Vol 4974 (1) ◽  
pp. 197-200
Author(s):  
ALEXEI V. CHERNYSHEV
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Coastal Waters ◽  
Marine Biology ◽  
Pacific Coast ◽  
Common Species ◽  
Scientific Center ◽  
The Pacific ◽  
The Pacific Ocean ◽  
A New Species

Marine heterobranch slugs of the order Runcinida comprise 61 species, most of which inhabit the Atlantic Ocean and are referred to the genus Runcina. The Runcinida of the Pacific Ocean have been much less studied to date: only 12 species, from the genera Metaruncina Baba, 1967, Rfemsia Chernyshev, 1999, Runcinida Burn, 1963, Runcinella Odhner, 1924, Pseudoilbia M. C. Miller & Rudman, 1968, and Runcina Forbes [in Forbes and Hanley], 1851, have been described from the region. Metaruncina, Rfemsia, and Runcinida are found in the Pacific Ocean only (Baba 1954, 1967; Burn 1963; Gosliner 1991; Chernyshev 1998, 1999, 2005, 2006). The genus Metaruncina, endemic from the Pacific coast of Asia, includes two species: M. setoensis (Baba, 1954) and M. nhatrangensis Chernyshev, 2005. The latter is the only runcinid described from the coastal waters of the South China Sea, where it was found in the bays of Nha Trang and Van Phong (Chernyshev 2005). During subsequent expeditions to the coastal waters of Vietnam, this species was also recorded from off Tho Chu Island (09°19’N, 103°30’E) and off Nam Du Island (09°43′ N, 104°23′ E). However, in addition to this common species, an undescribed species of Metaruncina was collected. A description of this new species is provided in the present paper. Type material was deposited at the Museum of the A.V. Zhirmunsky National Scientific Center of Marine Biology FEB RAS, Vladivostok, Russia (MIMB). 

A new species of Hemus (Majoidea: Majidae: Mithracinae) from the Pacific coast of Panamá, with a key to the genus

Zootaxa ◽  
2011 ◽  
Vol 2799 (1) ◽  
pp. 63 ◽  
Author(s):  
AMANDA M. WINDSOR ◽  
DARRYL L. FELDER
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Pacific Coast ◽  
Shallow Waters ◽  
Spider Crab ◽  
Single Male ◽  
Western Atlantic ◽  
Male Specimen ◽  
The Pacific ◽  
A New Species

A new species of spider crab, Hemus magalae n. sp. (Majidae), is described from a single male specimen from Islas de las Perlas, Pacific Ocean coast of Panamá. This species differs from its congeners with respect to many features of the carapace including mid-line elevation and lateral dentition. Hemus A. Milne-Edwards, 1875, now includes four species, three from coastal waters of the eastern Pacific Ocean and one from shallow waters in the tropical western Atlantic Ocean. A key to the Pacific and Atlantic species of Hemus is provided.

scholarly journals First record of Stibarobdella moorei (Annelida, Hirudinea, Piscicolidae) a marine leech parasitizing Octopus bimaculatus (Mollusca: Octopodidae) from the Mexican Pacific coast

2017 ◽  
Vol 54 (4) ◽  
pp. 322-329 ◽  
Author(s):  
D. J. López-Peraza ◽  
M. Hernández-Rodríguez ◽  
B. Barón-Sevilla ◽  
L. F. Bückle-Ramírez ◽  
M. I. Grano-Maldonado
Keyword(s):  
Los Angeles ◽  
Pacific Coast ◽  
Present Finding ◽  
First Record ◽  
Distribution Area ◽  
New Host ◽  
Mexican Pacific ◽  
The Pacific ◽  
The Pacific Ocean ◽  
First Time

SummaryThe occurrence of the parasitic marine leech Stibarobdella moorei (Oka, 1910) (Hirudinea: Piscicolidae) along the northwest Mexican Pacific coast is described for the first time. This ectoparasite was collected from the skin of the Octopus bimaculatus (Verril, 1983) (Mollusca: Octopodidae). Stibarobdella loricata (Hardig, 1924) is synonymized with S. moorei as this species resembles other species of the genus based on tubercle patterns and the presence of papillae and a marginal fringe on the oral sucker. The present finding throws new light on the biodiversity and host preference of the ectoparasite and suggests a successful migration to unusual host. The coast of the Pacific Ocean, particularly in the Bay of Los Angeles, Baja California, Mexico is a new geographical distribution area for S. moorei, and O. bimaculatus is a new host reported for this leech. The morphology of this ectoparasite is briefly described.

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