Red Octopus, Octopus rubescens Berry, 1953 (Cephalopoda: Octopodidae), in the Mexican tropical Pacific

“Octopus” rubescens Berry, 1953 is an octopus of temperate waters of the western coast of North America. This paper presents the first record of “O.” rubescens from the tropical Mexican Pacific. Twelve octopuses were studied; 10 were collected in tide pools from five localities and two mature males were caught by fishermen in Oaxaca. We used morphometric characters and anatomical features of the digestive tract to identify the species. The five localities along the Mexican Pacific coast provide solid evidence that populations of this species have become established in tropical waters.

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First record of Stephanostomum sp. Looss, 1899 (Digenea: Acanthocolpidae) metacercariae parasitising the pleasure oyster Crassostrea corteziensis (Hertlein) from the Mexican Pacific coast

Helminthologia ◽

10.2478/helm-2019-0019 ◽

2019 ◽

Vol 56 (3) ◽

pp. 211-218

Author(s):

M. I. Grano-Maldonado ◽

F. Rubalcava-Ramirez ◽

A. Rodriguez-Santiago ◽

F. Garcia-Vargas ◽

A. Medina-Jasso ◽

...

Keyword(s):

Health Risks ◽

Host Preference ◽

Pacific Coast ◽

First Record ◽

Distribution Area ◽

Human Consumption ◽

Mantle Tissue ◽

Mexican Pacific ◽

The Family ◽

Crassostrea Corteziensis

SummaryThe aim of this investigation was to identify the parasites present in the largely understudied pleasure oyster Crassostrea corteziensis in Sinaloa state in the northwestern Mexican Pacific coast. Inspection of twenty-eight oysters collected on “Ceuta” lagoon revealed the presence of the digenean Stephanostomum sp. (Digenea: Acanthocolpidae) cysts. Metacercariae were found encapsulated and embedded in the digestive gland and mantle tissue of oysters. The prevalence of infection revealed that 84.6 % were infected, the abundance was 13.62, with a mean intensity of 16.09 per host. The members of this genus are characterized by a double crown of spines in the cephalic region surrounding the buccal opening of the worm. Significantly, we report the first incidence of the digenean Stephanostomum sp of the family Acanthocolpidae parasitizing Crassostrea corteziensis. Further we report that this bivalve is now considered a new intermediate host, and the northwestern Mexican Pacific coast is a new geographical distribution area for this digenean. The findings contribute to our understanding of the biology, biodiversity and host preference of these parasites, with implications for health risks posed by human consumption of the pleasure oyster.

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

Zootaxa ◽

10.11646/zootaxa.2603.1.4 ◽

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.

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New Zealand exports: Pseudosphaeroma Chilton, 1909 (Isopoda: Sphaeromatidae), a Southern Hemisphere genus introduced to the Pacific coast of North America

Zootaxa ◽

10.11646/zootaxa.1908.1.4 ◽

2008 ◽

Vol 1908 (1) ◽

pp. 51-56 ◽

Cited By ~ 2

Author(s):

NIEL L. BRUCE ◽

REGINA WETZER

Keyword(s):

New Zealand ◽

North America ◽

Southern Hemisphere ◽

San Francisco ◽

Coastal Waters ◽

Pacific Coast ◽

First Record ◽

The Pacific ◽

First Time ◽

Coast Region

Collections made along the coast of California have revealed the presence of a species of Pseudosphaeroma Chilton, 1909, a genus common in New Zealand coastal waters. The genus is entirely Southern Hemisphere in distribution, and this record reports the introduction of a species of Pseudosphaeroma into the San Francisco and Central Coast region of California, the first reported occurrence of the genus as an invasive taxon, and the first record of the genus from the Northern Hemisphere. The genus is also recorded for the first time from the Galapagos and Argentina.

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

Zootaxa ◽

10.11646/zootaxa.868.1.1 ◽

2005 ◽

Vol 868 (1) ◽

pp. 1 ◽

Cited By ~ 5

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.

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ARYTAINILLA SPARTIOPHILA (FOERSTER) (HOMOPTERA: PSYLLIDAE) ON CYTISUS SCOPARIUS (L.) LINK IN VIRGINIA: FIRST RECORD IN EASTERN NORTH AMERICA

Journal of Entomological Science ◽

10.18474/0749-8004-21.3.214 ◽

1986 ◽

Vol 21 (3) ◽

pp. 214-218 ◽

Cited By ~ 2

Author(s):

Douglas G. Pfeiffer

Keyword(s):

North America ◽

North American ◽

Pacific Coast ◽

First Record ◽

Eastern North America ◽

Cytisus Scoparius ◽

Scotch Broom ◽

The Pacific

The psyllid Arytainilla spartiophila (Foerster) was collected from Scotch broom, Cytisus scoparius (L.) Link, at several locations in Virginia. This is the first North American record for this insect outside of the Pacific Coast Area.

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The first record of a trionychid turtle (Testudines: Trionychidae) from the Cretaceous of the Pacific Coast of North America

Vertebrate Anatomy Morphology Palaeontology ◽

10.18435/vamp29336 ◽

2018 ◽

Vol 5 ◽

Author(s):

Matthew J. Vavrek ◽

Donald B. Brinkman

Keyword(s):

British Columbia ◽

North America ◽

Late Cretaceous ◽

Rocky Mountains ◽

Pacific Coast ◽

First Record ◽

Vancouver Island ◽

The Pacific ◽

Western Interior Basin ◽

Cretaceous Deposits

Trionychid turtles were widespread throughout much of the Western Interior Basin of North America during the Cretaceous, represented by a wide variety of taxa. Despite their widespread abundance east of the Rocky Mountains, they have not previously been reported from Cretaceous deposits along the Pacific Coast of North America. We report here on an isolated trionychid costal from Vancouver Island, British Columbia. The fossil was recovered from the Late Cretaceous (Turonian to Maastrichtian) Nanaimo Group, on Vancouver Island, British Columbia. While the fossil is generically indeterminate, its presence adds an important datapoint in the biogeographic distribution of Trionychidae.

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

Zootaxa ◽

10.11646/zootaxa.4612.4.10 ◽

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.

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CENTROPTILUM INFREQUENS MCDUNNOUGH (EPHEMEROPTERA: BAETIDAE), A JUNIOR SYNONYM OF PSEUDOCENTROPTILUM PENNULATUM (EATON)

The Canadian Entomologist ◽

10.4039/ent122173-1 ◽

1990 ◽

Vol 122 (1) ◽

pp. 173-174 ◽

Cited By ~ 1

Author(s):

R.G. Lowen ◽

J.F. Flannagan

Keyword(s):

Soviet Union ◽

North America ◽

Western Europe ◽

Pacific Coast ◽

Life Stage ◽

First Record ◽

Junior Synonym ◽

The Arctic ◽

The Soviet Union

Centroptilum infrequens McDunnough, 1924 was found to be widespread in Canada and was described in detail at the 5th International Ephemeroptera Conference, Marysville, Australia, 1987 (Lowen and Flannagan 1989). At that time, similarities between C. infrequens and published accounts of Pseudocentroptilum pennulatum (Eaton 1870) were noted and it was suggested that these species are conspecific. We have recently compared specimens of C. infrequens with specimens of P. pennulatum from western Europe, and have noted no discernable differences at any life stage. We therefore conclude that Centroptilum infrequens McDumough, 1924 is a junior synonym of Pseudocentroptilum pennulatum (Eaton) 1870. This is the first record of Pseudocentroptilum in North America and the first record of a holarctic Pseudocentroptilum species, as P. pennulatum is also known from the arctic Ural and Pacific Coast regions of the Soviet Union.

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First record of Axinyssa Lendenfeld, 1897 (Demospongiae, Halichondrida) from the East Pacific Ocean, with the description of Axinyssa isabela sp. nov.

Zootaxa ◽

10.11646/zootaxa.1784.1.4 ◽

2008 ◽

Vol 1784 (1) ◽

pp. 58 ◽

Cited By ~ 4

Author(s):

JOSÉ LUIS CARBALLO ◽

JOSÉ ANTONIO CRUZ-BARRAZA

Keyword(s):

Pacific Ocean ◽

National Park ◽

Pacific Coast ◽

First Record ◽

Mexican Pacific ◽

East Pacific ◽

Vertical Walls ◽

East Pacific Ocean ◽

Collagen Layer ◽

A New Species

A new species of Axinyssa Lendenfeld, 1897 (Halichondriidae, Halichondrida) is described from the Mexican Pacific Ocean, which constitutes the first record of the genus in the Eastern Pacific Ocean. Axinyssa isabela sp. nov. is an incrusting to massive cushion-shaped yellow sponge without ectosomal skeleton. The ectosome is simply a thin, translucent, partly detachable collagen layer. The collagen is also abundant in the choanosome, while spicular density is relatively low. The choanosomal skeleton is confused with ascending single spicules or spicules grouped in tracts. The tracts become slightly more organized towards the periphery, protruding on the surface in spicule bundles or in single spicules. Spicules are oxeas and derivates (styles and strongyles), 200 to 780 µm long and 3 to 15 µm thick. So far, despite the sampling of a large number of localities along the Mexican Pacific Coast during the last years, Axinyssa isabela sp. nov. has been found only at National Park “Isla Isabel” (Nayarit, Mexico), where it is relatively common, in vertical walls, small caves and overhangs at depths between 4 and 20 m.

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Square-stalked St. John’s-wort, Hypericum tetrapterum, in Peel Region, Ontario: a New Non-native Vascular Plant Species for Eastern North America

The Canadian Field-Naturalist ◽

10.22621/cfn.v130i3.1886 ◽

2016 ◽

Vol 130 (3) ◽

pp. 231

Author(s):

Charles P Cecile ◽

Michael J Oldham

Keyword(s):

North America ◽

Pacific Coast ◽

Vascular Plant ◽

First Record ◽

Eastern North America ◽

Thuja Occidentalis ◽

St John’S Wort ◽

St John's Wort ◽

The Pacific ◽

Eastern White Cedar

The Eurasian Square-stalked St. John’s-wort (Hypericum tetrapterum Fr.: Hypericaceae) was found growing in an open Eastern White Cedar (Thuja occidentalis L.) swamp in Caledon, Regional Municipality of Peel, Ontario. This is the first record for eastern North America; previous North American occurrences have been on the Pacific coast in Vancouver, British Columbia, Canada (1991), and in Wahkiakum County, Washington State, USA (2003).

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