PHORONIDEA FROM THE PACIFIC COAST OF NORTH AMERICA

1959 ◽  
Vol 37 (2) ◽  
pp. 87-111 ◽  
Author(s):  
Joan Rattenbury Marsden
Keyword(s):  
North America ◽  
West Coast ◽  
Pacific Coast ◽  
Geographic Range ◽  
The West ◽  
Taxonomic Relationships ◽  
The Pacific ◽  
Phoronopsis Harmeri

Six phoronids from the west coast of North America, Phoronis vancouverensis, Phoronis pallida, Phoronis psammophila, Phoronis ovalis, Phoronopsis harmeri, and one that is possibly Phoronis architecta, are described. Phoronopsis harmeri is considered to be synonymous with Phoronopsis viridis. Taxonomic relationships within the Phoronidea are discussed. It is suggested that the phylum may most naturally be divided into four categories of wide geographic range. The characteristics of each of these categories are discussed.

Peniculus asinus (Copepoda: Pennellidae), a new species of copepod parasitic on fishes of the genus Sebastes along the west coast of North America

1977 ◽  
Vol 55 (12) ◽  
pp. 1988-1991 ◽  
Author(s):  
Z. Kabata ◽  
S. N. Wilkes
Keyword(s):  
New Species ◽  
North America ◽  
West Coast ◽  
Pacific Coast ◽  
The West ◽  
Unique Member ◽  
The Pacific ◽  
The Family ◽  
A New Species

Peniculus asinus, a new species of copepod parasitic on Sebastes (Pisces: Teleostei) off the Pacific coast of Canada is described and illustrated. The copepod is an unique member of its genus in that it possesses cephalothoracic holdfast processes. The discovery of a Peniculus with these processes is taken as evidence confirming the place of this genus in the family Pennellidae.

Marine tube-dwelling diatoms of the Pacific coast of North America. II. Navicula subg. Navicula and a key to the tube-dwelling diatoms of the region

1990 ◽  
Vol 68 (4) ◽  
pp. 707-712 ◽  
Author(s):  
Christopher S. Lobban
Keyword(s):  
North America ◽  
Key Words ◽  
West Coast ◽  
Pacific Coast ◽  
Single Variable ◽  
Morphometric Data ◽  
The West ◽  
The Pacific ◽  
Rectangular Area ◽  
Variable Population

The tube-dwelling cross-lineate Navicula species on the west coast are dominated by a taxon that belongs in or near the N. ramosissima – N. mollis complex. Morphometric data were used to establish that a single, variable population exists. The species was assigned to N. rusticensis. Cells are 28 ± 7 × 5 ± 1 μm and striae number 14 ± 2 in 10 μm; these cells differ from the ramosissima–mollis complex in having 1–3 short central striae that form a narrow rectangular area. The range of size encompasses published limits for both N. ramosissima and N. mollis. A key to tube-dwelling diatoms of the west coast completes this two-part checklist. Key words: diatoms, Pacific, tube-dwelling, Navicula rusticensis, Navicula ramosissima.

Geographic range in Chthamalus along the west coast of North America

2005 ◽  
Vol 85 (2) ◽  
pp. 327-331 ◽  
Author(s):  
J.P. Wares ◽  
A.E. Castañeda
Keyword(s):  
North America ◽  
Cryptic Species ◽  
Genetic Markers ◽  
West Coast ◽  
Environmental Gradients ◽  
Geographic Range ◽  
The West ◽  
Barnacle Species ◽  
Range Overlap

Identification of the range boundaries and microgeographic distribution of cryptic species is greatly facilitated by the use of genetic markers. Here we characterize the geographic range overlap between two cryptic species, Chthamalus fissus and C. dalli, and show that as with other barnacle species, their distribution and abundance is probably dictated more by microhabitat characteristics and the presence of conspecifics than broader environmental gradients. We also show that C. dalli appears to be panmictic across the studied range.

scholarly journals Morphological variation in the hydromedusa genus Polyorchis on the west coast of North America

1980 ◽  
Vol 58 (11) ◽  
pp. 2089-2095 ◽  
Author(s):  
John T. Rees ◽  
R. J. Larson
Keyword(s):  
North America ◽  
Morphological Variation ◽  
West Coast ◽  
Baja California ◽  
Geographic Range ◽  
Valid Species ◽  
The West ◽  
Radial Canal

Morphological variation in the hydromedusan genus Polyorchis on the west coast of North America is analyzed in relation to gonad number, tentacle number, and radial canal diverticula number relative to the height of the bell. In specimens of Polyorchis examined, it is concluded that P. penicillatus (Eschscholtz, 1829) is highly variable morphologically over its known geographic range from Alaska to Baja California. Polyorchis montereyensis Skogsberg, 1948 is considered a synonym of P. penicillatus, and P. haplus Skogsberg, 1948, is retained as a valid species.

scholarly journals First record and geographic range extension of the coccolithophore Scyphosphaera apsteinii Lohman, 1902 (Haptophyta: Pontosphaeraceae) from the Pacific coast of Mexico

Check List ◽  
2015 ◽  
Vol 11 (5) ◽  
pp. 1754 ◽  
Author(s):  
Francisco O. López-Fuerte ◽  
Ismael Gárate-Lizárraga ◽  
David A. Siqueiros-Beltrones ◽  
Ricardo Yabur
Keyword(s):  
Gulf Of Mexico ◽  
Type Species ◽  
Pacific Coast ◽  
First Record ◽  
Geographic Range ◽  
Central Pacific ◽  
The West ◽  
The Pacific ◽  
The Caribbean ◽  
First Time

The coccolithophorid Scyphosphaera apsteinii is here reported for the first time from waters off the west coast of the Baja California Peninsula. Scypho­sphaera apsteinii is the type species of the genus Scyphosphaera and had hitherto been recorded only in the Atlantic and Indian Oceans, the Gulf of Mexico, the Mediterranean, and the Caribbean Seas. Specimens were found in samples collected in nets off Isla de Guadalupe in January 2013. This recording thus extends the geographical distribution of S. apsteinii from the Central Pacific (Hawaii) to the Eastern Pacific (NW Mexico).

Galianthe holmneielsenii (Spermacoceae-Rubiaceae): A New Rheophilous Species from the Pacific Coast of Colombia and Ecuador

2021 ◽  
Vol 46 (2) ◽  
pp. 427-432
Author(s):  
Javier E. Florentín ◽  
Mariela Nuñez Florentin ◽  
Roberto M. Salas
Keyword(s):  
New Species ◽  
West Coast ◽  
Pacific Coast ◽  
Conservation Status ◽  
Seed Traits ◽  
Distribution Map ◽  
The West ◽  
Diagnostic Characters ◽  
The Pacific ◽  
A New Species

Abstract— A new species of Galianthe from the west coast of Colombia and Ecuador that has fruits with indehiscent mericarps is described and illustrated. Galianthe holmneielsenii is most similar to Borreria ocymifolia and G. spicata, but differs in floral, fruit, and seed traits. An illustration of the diagnostic characters, a distribution map, information about the conservation status of the new species, and a key to the Galianthe species in Colombia and Ecuador are provided.

Middle Eocene terebratulide brachiopods from the Bateque Formation, Baja California Sur, Mexico

1995 ◽  
Vol 69 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Michael R. Sandy ◽  
Richard L. Squires ◽  
Robert Demetrion
Keyword(s):  
North America ◽  
Baja California ◽  
Pacific Coast ◽  
Middle Eocene ◽  
Central American ◽  
Baja California Sur ◽  
Invertebrate Fauna ◽  
The West ◽  
The Pacific ◽  
Central American Seaway

Two species of terebratulide brachiopods are described from the upper part of the Bateque Formation (middle Eocene) on the Pacific coast of Baja California Sur, Mexico, Terebratulina cf. Terebratulina louisianae Stenzel, 1940, and Terebratalia batequia n. sp. Terebratalia batequia n. sp. is the earliest confirmed record of the genus Terebratalia Beecher, 1893, which has been an important component of Pacific brachiopod faunas through to the present day. The occurrence of Terebratulina cf. Terebratulina louisianae Stenzel is one of the earliest records of the genus from the west coast of North America. These brachiopods, like other elements of the Bateque invertebrate fauna, may record Eocene migration from the Atlantic to Pacific Ocean via the Central American seaway.

Five new species of Ceratoppia (Acari: Oribatida: Peloppiidae) from western North America

Zootaxa ◽  
2011 ◽  
Vol 3036 (1) ◽  
pp. 1 ◽  
Author(s):  
ZOE LINDO
Keyword(s):  
New Species ◽  
North America ◽  
Pacific Northwest ◽  
West Coast ◽  
Forest Floor ◽  
Western North America ◽  
The West ◽  
The Pacific ◽  
Southern Border ◽  
Temperate Rainforests

I present the systematics and distribution of five new species of oribatid mites in the genus Ceratoppia (Oribatida: Peloppiidae) from western North America. The species are described on the basis of adult morphology using the following character states: number of hypostomal setae, number, length and expression of posterior notogastral setae, length of lamellae and lamellar cusp, length of interlamellar setae, and the shape and dentition of the rostrum. Ceratoppia indentata n. sp. is described from forest floor habitats, while Ceratoppia longicuspis n. sp. and Ceratoppia tofinoensis n. sp. are described from arboreal bryosphere habitats; Ceratoppia offarostrata n. sp. is associated with bark habitats. Ceratoppia valerieae n. sp. was collected from both arboreal and forest floor samples. Distributions of all species are provided based on museum and collection records; C. indentata, C. longicuspis, C. tofinoensis are recorded from coastal temperate coniferous rainforests of the Pacific Northwest of North America, while C. valerieae was found in coastal temperate rainforests and extending along the southern border of British Columbia into eastern Alberta. Ceratoppia offarostrata is collected only from a small number of locations on the west coast of Canada. Comments on other North American Ceratoppia species is given. A morphological key is presented to the described adult species for the genus Ceratoppia in North America.

Sign in / Sign up

Export Citation Format

Share Document