Blackflies (Diptera: Simuliidae) of the Queen Charlotte Islands, British Columbia, with discussion of their origin and description of Simulium (Hellichiella) nebulosum n. sp.

1986 ◽  
Vol 64 (1) ◽  
pp. 218-227 ◽  
Author(s):  
D. C. Currie ◽  
P. H. Adler

A morphological and cytological study on blackflies of the Queen Charlotte Islands, British Columbia, revealed a total of 16 species in three genera: Prosimulium (6 species), Simulium (9 species), and Stegopterna (1 species). Included is a description of Simulium (Hellichiella) nebulosum n. sp. Notes on distribution and bionomics are provided for each species. AH species collected on the Queen Charlotte Islands are also found on the North American mainland. We conclude that the origin of the present-day simuliid fauna is best explained by post-Wisconsinan dispersal from mainland populations. This conclusion does not support the hypothesis of a continuously mild, Wisconsinan refugium on the Queen Charlotte Islands.

1964 ◽  
Vol 21 (5) ◽  
pp. 933-939 ◽  
Author(s):  
Richard H. Rosenblatt

A new species, Pholis clemensi, referred to the family Pholidae, is named and described from 12 specimens taken in southern British Columbia waters and the Strait of Juan de Fuca. Pholis clemensi is compared with other members of the genus, and a key is given to the North American species.


1994 ◽  
Vol 31 (6) ◽  
pp. 919-942 ◽  
Author(s):  
Giselle K. Jakobs ◽  
Paul L. Smith ◽  
Howard W. Tipper

This is the second in a series of papers intended to establish a Lower Jurassic ammonite zonation that takes into account the biostratigraphic and biogeographic peculiarities of the North American succession. In North America the lower boundary of the Toarcian is drawn at the first appearance of Dactylioceras above the last occurrence of Amaltheus and Fanninoceras. The lower Toarcian is represented by the Kanense Zone; the middle Toarcian by the Planulata and Crassicosta zones; and the upper Toarcian by the Hillebrandti and Yakounensis zones. Section 5 on the Yakoun River in the Queen Charlotte Islands is designated the stratotype for the Planulata, Crassicosta, and Hillebrandti zones; section 3 on the Yakoun River is designated the stratotype for the Yakounensis Zone; an ideal stratotype for the Kanense Zone is not presently known. Reference sections further illustrating the faunal associations that characterize the zones are designated in eastern Oregon (Snowshoe Formation) and northern British Columbia (Spatsizi Group). The Dactylioceratidae, Harpoceratinae, and Hildoceratinae provide the most important zonal indicators for the lower Toarcian; Dactylioceratidae, Phymatoceratinae, and Bouleiceratinae for the middle Toarcian; and Phymatoceratinae, Grammoceratinae, and Hammatoceratinae for the upper Toarcian. Phymatoceras hillebrandti is described as a new species.


1979 ◽  
Vol 111 (10) ◽  
pp. 1121-1126 ◽  
Author(s):  
K.B. Bolte ◽  
Eugene Munroe

AbstractThe palaearctic species Hemithea aestivaria (Hübner) (Lepidoptera: Geometridae: Geometrinae: Hemitheini), newly reported from British Columbia, is described, discussed and illustrated. The genus and species are new to the North American fauna.


2008 ◽  
Vol 82 (5) ◽  
pp. 1043-1050 ◽  
Author(s):  
Calvin H. Stevens

Wrangellia was one of the first described and probably the most widely known of the North American Cordilleran terranes. On the basis of Triassic stratigraphy (Jones et al., 1977) and paleomagnetism (Hillhouse, 1977), the name Wrangellia was proposed for large areas of outcrop in Alaska, British Columbia, and Oregon (Fig. 1).


1957 ◽  
Vol 14 (2) ◽  
pp. 165-202 ◽  
Author(s):  
Frances Ella Cameron

The distribution of certain copepod species of the north coast of British Columbia suggests that breeding is restricted to limited regions of well-defined temperature and salinity characteristics. Currents are responsible for the spread of juveniles and adults from these areas. Probable water circulation patterns in the vicinity of the Queen Charlotte Islands are inferred from the plankton collections.


2016 ◽  
Author(s):  
Zachary Foster-Baril ◽  
◽  
Elizabeth J. Cassel ◽  
Andrew Leier ◽  
S. Bruce Archibald

2003 ◽  
Vol 77 (2) ◽  
pp. 314-322 ◽  
Author(s):  
Fumihisa Kawabe ◽  
James W. Haggart

The Upper Albian Desmoceras species of Japan are described, based on material from the Yezo Supergroup in Hokkaido, north Japan, and from the Fujikawa Formation in Shikoku, southwest Japan. Based on comparative analysis of morphologic variation and shell growth of relevant specimens, we assign the present material to two species: Desmoceras (Desmoceras) latidorsatum (Michelin, 1838) and Desmoceras (Pseudouhligella) poronaicum Yabe, 1904. Japanese examples of the latter species have been previously referred to “Desmoceras (Pseudouhligella) dawsoni,” a Canadian species present on Queen Charlotte Islands, British Columbia, but not represented in the Japanese Islands. Desmoceras (Pseudouhligella) poronaicum is also known from British Columbia.The subgenus Pseudouhligella presumably originated in the eastern Pacific during the Late Albian and subsequently migrated to the western Pacific during latest Albian to earliest Cenomanian time. Desmoceras (D.) latidorsatum is a Tethyan form; its presence in the Upper Albian of the North Pacific probably reflects a northward excursion of warm-water currents from the tropical region during Late Albian time.


2017 ◽  
Vol 44 (2) ◽  
pp. 259-274 ◽  
Author(s):  
S. G. Sealy

From 1890 to 1899, the Reverend John Henry Keen collected plants and animals in the vicinity of the Anglican mission at Massett, on the north-central coast of the Queen Charlotte Islands (Haida Gwaii), British Columbia, Canada. Keen's prodigious collecting efforts resulted in the first detailed information on the natural history of that region, particularly of the beetle fauna. Keen also observed and collected mammals, depositing specimens in museums in Canada, England and the United States, for which a catalogue is given. Several mammal specimens provided the basis for new distributional records and nine new taxa, two of which were named for Keen. In 1897, Keen prepared an annotated list of ten taxa of land mammals of the Queen Charlotte Islands, including the first observations of natural history for some of the species. Particularly important were the insightful questions Keen raised about the evolution of mammals isolated on the Islands, especially why certain species, abundant on the mainland, were absent.


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