scholarly journals Two new marine species of Cocconeis (Bacillariophyceae) from the west coast of Sweden

2019 ◽  
Author(s):  
Adil Y. Al-Handal ◽  
Catherine Riaux-Gobin ◽  
Regine Jahn ◽  
Angela Katarina Wulff ◽  
Alison Minerovic
Keyword(s):  
West Coast ◽  
Light And Electron Microscopy ◽  
Marine Species ◽  
Benthic Diatom ◽  
Small Island ◽  
Coastal Regions ◽  
The West ◽  
Two New Species ◽  
Ulva Intestinalis ◽  
Microscopy Examination

This paper is part of a project of studying benthic diatom biodiversity on marine coastal regions of Sweden with focus on rare and less known species. Two new species of Cocconeis Ehrenb. are described from Vrångö, a small island in the west coast of Sweden. Both species were found as epiphytic on the green alga Ulva intestinalis L. Cocconeis magnoareolata Al-Handal, Riaux-Gob., R.Jahn & A.K.Wulff sp. nov. is a small species not exceeding 9 µm in length and characterized by having large subquadrangular areolae on the sternum valve. Cocconeis vrangoensis Al-Handal & Riaux-Gob. sp. nov. appears similar to some taxa of the ‘Cocconeis scutellum complex’, but differs by its stria density on both valves and variable features of the areola and valvocopula ultrastructure. Detailed descriptions based on light and electron microscopy examination, a comparison with closely related taxa, as well as a description of the habitat of both species are here presented.

Two new species of Bargmannia (Pyrostephidae, Physonectae, Siphonophorae)

Zootaxa ◽  
2019 ◽  
Vol 4686 (1) ◽  
pp. 74-82
Author(s):  
P. R. PUGH
Keyword(s):  
New Species ◽  
West Coast ◽  
Distal Part ◽  
The West ◽  
Two New Species ◽  
Living Species

Two new deep-living species of the genus Bargmannia (Siphonophorae, Physonectae, Pyrostephidae) are described based, almost exclusively, on the nectophores of single specimens collected by ROVs off the west coast of California. The nectophores of B. stenotes sp. nov. were relatively small, up to 11.4 mm in length and, in the preserved condition had very narrow nectosacs. There was a marked bend in the distal part of the preserved nectophore, resulting in the ostium opening upwards. The mature nectophores of B. profunda sp. nov. were almost twice as long as those of B. stenotes and were characterised by the fact that the lower lateral ridges did not join, distally, with the meso-lateral ones. This feature also was present in smaller nectophores of B. amoena but those of B. stenotes, at that stage, did not have a mouth-plate. 

Athens Honours Proxenos (IG i2. 146)

1974 ◽  
Vol 69 ◽  
pp. 295-298
Author(s):  
Michael B. Walbank
Keyword(s):  
West Coast ◽  
Fifth Century ◽  
Small Island ◽  
The South ◽  
The West ◽  
South West

This document is one of a number of Attic proxeny-decrees that A. G. Woodhead considered to be evidence for Athenian concern with the south-west Aegean towards the end of the fifth century B.C. He identified the honorand Proxenos as a native of Chalke, a small island off the west coast of Rhodes. I share the view of J. and L. Robert that Woodhead has not proved his case either for the date or for the ethnic.The inscription is non-stoichedon, its engraving inexpert and careless, with several mistakes untidily erased and corrected. There is a mixture of Attic and Ionic letter-forms in the first three lines (gamma, eta, and lambda are Ionic, while xi is written chi sigma); otherwise the lettering is Attic, indicating a date before 403 B.C.

scholarly journals CATÁLOGO ICONOGRÁFICO DE DIATOMEAS DE HÁBITATS ROCOSOS Y SU INCIDENCIA EN LA DIETA DE ABULONES (Haliotis spp.) JÓVENES DE BAJA CALIFORNIA SUR, MÉXICO

2004 ◽  
Vol 19 (1-2) ◽  
pp. 29
Author(s):  
D. A. Siqueiros-Beltrones ◽  
G. Valenzuela-Romero ◽  
O. U. Hernández-Almeida ◽  
U. Argumedo-Hernández ◽  
F.O. López Fuerte
Keyword(s):  
West Coast ◽  
Baja California ◽  
Culture Conditions ◽  
Benthic Diatom ◽  
Gut Contents ◽  
Baja California Sur ◽  
Diatom Species ◽  
The West ◽  
Epiphytic Diatoms ◽  
Rocky Habitats

Se proporcionan un catálogo iconográfico y el inventario de los taxa de diatomeas que se encuentran en hábitats rocosos de la costa occidental de Baja California Sur, y aquellas que forman parte de la dieta de abulones (Haliotis spp.) jóvenes, con el objetivo de tener una referencia práctica que coadyuve en el manejo de este recurso. La información se derivó principalmente de estudios científicos en varias localidades de B. C. S. Para ello, se obtuvieron muestras de diatomeas del ambiente rocoso, y se examinaron los contenidos intestinales de especímenes juveniles de abulón azul (H. fulgens ) y abulón amarillo (H. corrugata ). Se identificaron 321 taxa de diatomeas bénticas, tanto epilíticas como epífitas, de los cuales, hasta 98 taxa se han observado dentro de su dieta. Así, aunque juveniles de H. corrugata y H. fulgens pueden alimentarse de diatomeas de cualquier especie que esté disponible en su ambiente, la dieta principalmente la constituyen unos pocos taxa, específicamente: Cocconeis speciosa, C. costata var. pacifica, C. diminuta, C. scutellum, Thalassionema nitzschioides, Tabularia investiens, Gomphonemopsis pseudexigua , incluyendo formas coloniales, como Berkeleya fennica . En los contenidos intestinales es común observar agregaciones de diatomeas, ya sean mono- o multiespecíficas, a veces adheridas a tejidos de macroalga. De acuerdo con este estudio, se deben reconsiderar el enfoque monoespecífico y la selectividad en la alimentación de juveniles y poslarvas de Haliotisspp. en cultivo; asimismo, la fuente para su alimentación debe ser el sustrato rocoso colonizado por macroalgas donde estos habitan. Igual, debe reevaluarse la contribución de las diatomeas a la nutrición de abulones jóvenes (0.5 cm - 1 cm) que han cambiado su dieta a macroalgas, dada la abundancia de diatomeas epifitas que aquellas presentan. Iconographic catalog of the diatoms occurring in rocky habitats and in the diet of young abalone (Haliotis spp.) in Baja California Sur, México An iconographic catalogue and inventory of the diatom taxa found in rocky habitats of the west coast of Baja California Sur and those that make up part of the diet in young abalone ( Haliotis spp.) are provided as a practical reference that aids in the management of this resource. This information was derived mainly from scientific studies in various localities in B. C. Sincerely. The analyzed diatom samples were collected from the rocky environment, and from the gut contents of young green ( H. fulgens ) and pink abalone ( H. corrugata ). A total of 321 benthic diatom taxa were identified, both epilithic and mainly epiphytic forms. Out of these 98 diatom taxa have been observed in the diet of juvenile H. fulgens and H. corrugata . Although young abalone may feed on any diatom species available in their habitat, few taxa represent the main diatom component of their diet: Cocconeis speciosa, C. costata var. pacifica, C. diminuta, C. scutellum, T. nitzschioides, T. investiens, Gomphonemopsis pseudexigua, and colonial forms, such as Berkeleya fennica . Mono- or multispecific clusters of diatoms are frequent in the gut contents of abalone juveniles, frequently attached to macroalgae tissue. Our observations indicate that the monospecific view and supposed selectivity in the feeding of cultured abalone should be reconsidered, and that the diatom source for feeding young abalone and post-larvae under culture conditions should be the rocky substrate occupied by macroalgae found in abalone fishing sites. Because of the abundance of epiphytic diatoms on macroalgae the contribution of diatoms to the nutrition of young abalone (0.5 cm -1 cm) that change their diet to macroalgae should be reassessed.

scholarly journals Occigamasus, a new genus of pergamasine mites, with description of two new species from the west coast of North America (Parasitiformes: Gamasina: Parasitidae)

Acarologia ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 551-570
Author(s):  
Ilinca Juvara-Balş
Keyword(s):  
New Species ◽  
North America ◽  
West Coast ◽  
New Genus ◽  
Vancouver Island ◽  
New Combination ◽  
The West ◽  
Two New Species

Occigamasus n. gen., O. lindquisti n. sp. and O. makarovae n. sp. from Vancouver Island (Canada) and Oregon (U.S.A.) are described. Five other new species and their sites are noted but not enough specimens were available for adequate descriptions. Cycetogamasus californicus (Banks) sensu Hennessey and Farrier, 1988 is transferred to Occigamasus as a new combination.

A taxonomic revision of Pseudochitinopoma Zibrowius, 1969 (Annelida, Serpulidae) with description of two new species

Zootaxa ◽  
2012 ◽  
Vol 3507 (1) ◽  
pp. 57
Author(s):  
ELENA K. KUPRIYANOVA ◽  
HARRY A. TEN HOVE ◽  
EJIROH NISHI
Keyword(s):  
New Species ◽  
North America ◽  
Red Sea ◽  
Western Australia ◽  
West Coast ◽  
Taxonomic Revision ◽  
The West ◽  
Reproductive Patterns ◽  
Two New Species ◽  
Phylogenetic Affinities

This study is a revision of the poorly known genus Pseudochitinopoma Zibrowius, 1969 (Annelida, Serpulidae), erected for Hyalopomatopsis occidentalis Bush, 1905 from the West Coast of North America. Subsequently, an unnamed Pseudochitinopoma sp. nov. from the Seychelles (ten Hove 1994) (described herein as P. amirantensis sp. nov.) and P. pavimentata Nishi, 1999 were added to the genus. Ficopomatus capensis Day, 1961 is herein referred to Pseudochitinopoma, based on examination of the type material. Finally, Pseudochitinopoma beneliahuae sp. nov. was described from Western Australia and the Red Sea. Reproductive patterns and phylogenetic affinities of Pseudochitinopoma spp. are discussed.

A taxonomic revision of the southern African native and naturalized species of Silene L. (Caryophyllaceae)

Bothalia ◽  
2012 ◽  
Vol 42 (2) ◽  
pp. 147-186
Author(s):  
J. C. Manning ◽  
P. Goldblatt
Keyword(s):  
New Species ◽  
Southern Africa ◽  
Morphological Variation ◽  
West Coast ◽  
Native Species ◽  
Taxonomic Revision ◽  
Western Cape ◽  
The West ◽  
Sem Micrographs ◽  
Two New Species

The native and naturalized species of Silene L. in southern Africa are reviewed, with full synonomy and the description of two new species from the West Coast of Western Cape. Eight native species and three naturalized species are recognized, including the first identification in southern Africa of the Mediterranean S. nocturna L. The identity of S. aethiopica Burm., which has remained unknown since its description, is established and is found to be the oldest name for S. clandestina Jacq. Patterns of morphological variation within each species are discussed and subspecies are recognized for geographically segregated groups of populations that are ± morphologically diagnosable. The following new names or combinations are made among the southern African taxa: S. aethiopica subsp. longiflora; S. burchellii subsp. modesta, subsp. multiflora, and subsp. pilosellifolia; S. crassifolia subsp. primuliflora; S. saldanhensis; S. rigens; and S. undulata subsp. polyantha. Each taxon is described, with information on ecology and distribution, and most species are illustrated, including SEM micrographs of the seeds.

Monsters and Marvels

2017 ◽  
Author(s):  
Douglas Allchin
Keyword(s):  
West Coast ◽  
Liberal Arts ◽  
Modern Science ◽  
Conjoined Twins ◽  
Small Island ◽  
Good Luck ◽  
The West ◽  
Body Form ◽  
King Henry Ii ◽  
Sense Of Wonder

Four-leaf clovers are traditional emblems of good luck. Two-headed sheep, five-legged frogs, or persons with six-fingered hands, by contrast, are more likely to be considered repugnant monsters, or “freaks of nature.” Such alienation was not always the case. In sixteenth-century Europe, such “monsters,” like the four-leaf clover today, mostly elicited wonder and respect. People were fascinated with natural phenomena just beyond the edge of the familiar. Indeed, that emotional response—at that juncture in history—helped foster the emergence of modern science. Wonder fostered investigation and, with it, deeper understanding of nature. One might thus well question a widespread but generally unchallenged belief about biology—what one might call a sacred bovine: that emotions can only contaminate science with subjective values. Indeed, delving into how “monsters” once evoked wonder might open a deeper appreciation of how science works today. Consider the case of Petrus Gonsalus, born in 1556 (Figure 1.1). As one might guess from his portrait, Gonsalus (also known as Gonzales or Gonsalvus) became renowned for his exceptional hairiness. He was a “monster”: someone—like dwarves, giants, or conjoined twins—with a body form conspicuously outside the ordinary. But, as his courtly robe might equally indicate, Gonsalus was also special. Gonsalus was born on Tenerife, a small island off the west coast of Africa. But he found a home in the court of King Henry II. Once there, he became educated. “Like a second mother France nourished me from boyhood to manhood,” he recollected, “and taught me to give up my wild manners, and the liberal arts, and to speak Latin.” Gonsalus’s journey from the periphery of civilization to a center of power occurred because he could evoke a sense of wonder. Eventually, he moved to other courts across Europe. Wonder was widely esteemed. For us, Gonsalus may be emblematic of an era when wonder flourished. In earlier centuries monsters were typically viewed as divine portents, or prodigies. Not that they were miracles. The course of nature seemed wide enough to include them.

A masculine island in Lucan

1952 ◽  
Vol 1 ◽  
pp. 15-16
Author(s):  
J. R. Trevaskis
Keyword(s):  
West Coast ◽  
Small Island ◽  
The West ◽  
Ancient Maps

The description of Brundisium, Lucan, II, 610–27, concludes:hoc fuga nautarum, cum totas Hadria viresmovit et in nubes abiere Ceraunia cumquespumoso Calaber perfunditur aequore Sason.Sason appears to be the small island just north of the Ceraunian headland off the west coast of Macedonia, modern Sasena (cf. Strab. vi, iii, 5, p. 281; Polyb. v, 110; Plin. H.N. III, 152; Ptol. III, 12 ad fin.), and it is taken in that sense by those editors who notice it. The description would fit such an island in a storm very well.Two questions arise: (1) Why is the island called Calabrian? (2) Why is the epithet masculine?(1) It would hardly seem reasonable to call an island ‘Calabrian’ in a geographical sense unless it were off Calabria. Lucan may have thought the island to lie farther out in the straits than it does (cf. Strab. loc. cit. μέση πως): ancient maps may well have so represented it (cf. Ptol.), certainly if medieval maps can be taken as a guide. His description might then be by hypallage for spumosus Calabro…(pace Palmer., Graec. Antiq. Descr. I, 33, ‘procul dubio quod Calabri olim incoluerant primi’).

Iona

Antiquity ◽  
1933 ◽  
Vol 7 (28) ◽  
pp. 453-467 ◽  
Author(s):  
O. G. S. Crawford
Keyword(s):  
West Coast ◽  
Small Island ◽  
The West ◽  
Church Of Scotland ◽  
The World ◽  
The Church

Iona is a small island off the west coast of Scotland. It is famous throughout the world as the adopted home of Columba, the virtual founder of the Church of Scotland. It was in this island that he founded his monastery in 563 ; and it was from here that Aidan, the founder of Lindisfarne, came in 635 to christianize Northumbria. Thousands of tourists visit Iona every year, and are duly conducted round the ruins during the short hour or two allowed by the steamer’s call ; yet how many realize that, of the remains they see, not even the oldest came into existence until about 500 years after the death of Columba?

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