Two New Species of Calanoid Copepods from the Strait of Georgia, British Columbia, Canada

1967 ◽  
Vol 24 (2) ◽  
pp. 231-242 ◽  
Author(s):  
Tai Soo Park
Keyword(s):  
British Columbia ◽  
New Species ◽  
Calanoid Copepods ◽  
Strait Of Georgia ◽  
Lateral Process ◽  
Two New Species

Two new species, Gaidius columbiae and Tharybis fultoni, from the Strait of Georgia, British Columbia, Canada, are described and illustrated in detail. The former can be distinguished from all previously known species of its genus by the shape of the postero-lateral process of the metasome, and the latter by the shape of the 5th pair of legs.

Two new species of stalked crinoids from the northeastern Pacific in the genera Gephyrocrinus and Ptilocrinus (Echinodermata, Crinoidea, Hyocrinidae). Effects of ontogeny and variability on hyocrinid taxonomy

Zootaxa ◽  
2011 ◽  
Vol 2825 (1) ◽  
pp. 1 ◽  
Author(s):  
MICHEL ROUX ◽  
PHILIP LAMBERT
Keyword(s):  
British Columbia ◽  
New Species ◽  
Single Species ◽  
Depth Range ◽  
Evolutionary Trend ◽  
Exceptional Collection ◽  
The Family ◽  
Two New Species ◽  
Northeastern Pacific ◽  
Stalked Crinoids

Two new species of deep-sea stalked crinoids belonging to the family Hyocrinidae were collected in the northeastern Pacific. The descriptions contain detailed information on character variations and ontogeny. The five specimens of Gephyrocrinus messingi n. sp. lived at depths ranging from 1,777 m to 2,110 m off British Columbia and California. This new species is the first record of the genus Gephyrocrinus in the Pacific Ocean, which was previously known from only a single species, G. grimaldii, from the northeastern Atlantic at the same depth range. The two species illustrate opposing phenotypes within the same genus. Fifty-eight specimens of the second new species, Ptilocrinus clarki n. sp., were dredged off British Columbia close to the type-locality of P. pinnatus, the type species of the genus Ptilocrinus, but at shallower depths ranging from 1,178 to 1,986 m. This exceptional collection provides significant data on intraspecific variation in the main morphological characters, especially arm pattern. The ontogeny of stalk articulations and the main traits of adoral plate differentiation are described in detail. A complementary investigation on P. pinnatus was conducted using specimens collected by the “Albatross” expedition at a depth of 2,906 m. Despite similarities in external morphology, tegmen and cover plates, the two ptilocrinid species display significant differences in pinnule architecture, aboral cup and stalk articulations. From comparison with Gephyrocrinus messingi n. sp. and Ptilocrinus clarki n. sp., G. grimaldii and P. pinnatus are interpreted as the result of heterochronic development by paedomorphy after ecological or geographic isolation. Pinnule architecture in the two new species suggests first steps in an evolutionary trend toward a rigid box which protects gonad inflation in the proximal part of the pinnule. These new data on Ptilocrinus and Gephyrocrinus create problems in the current taxonomy of the family Hyocrinidae. The main derived characters, especially in pinnule and arm pattern, are used to propose new hypotheses for hyocrinid phylogeny.

Early Permian colonial rugose corals from the Stikine River area, British Columbia, Canada

1989 ◽  
Vol 63 (2) ◽  
pp. 158-181 ◽  
Author(s):  
Calvin H. Stevens ◽  
Barbara Rycerski
Keyword(s):  
British Columbia ◽  
New Species ◽  
Lower Permian ◽  
Early Permian ◽  
Klamath Mountains ◽  
Coral Fauna ◽  
Rugose Corals ◽  
Two New Species ◽  
Three New Species ◽  
One New Species

Twenty-two species of Early Permian colonial rugose corals belonging to 12 genera from 10 locations in the Stikine River area in northwestern British Columbia, Canada, are described. These include three new species ofFomichevella(F. magna, F. southeri, F. bamberi); two species ofHeintzella; five species ofHeritschioides, of which three are new (H. bagleyae, H. garvinae, H. hoganae); two new species ofParaheritschioides(P. jennyi, P. wickenae); one new species questionably assigned toKleopatrina(K.?stikinensis); two new species ofPetalaxis(P. guaspariniae, P. neriae); and two new species ofLytvophyllum(L.?mongeri, L. wersoni). In addition, five new species assigned to five new genera are here namedEastonastraea complexa, Fedorowskiella simplex, Pararachnastraea lewisi, Stikineastraea thomasi, andWilsonastraea rigbyi.These corals occur in rocks forming part of the Stikine terrane, the largest tectonostratigraphic unit in western Canada. This coral fauna shows a very close affinity with that of the Lower Permian McCloud Limestone of the eastern Klamath Mountains of northern California, and there is some similarity to the Coyote Butte fauna of central Oregon. Several species compare most closely with species from Spitsbergen, but there are few similarities with any cratonal North American faunas and none with Tethyan faunas.

Mid-Furongian trilobites and agnostids from the Wujiajiania lyndasmithae Subzone of the Elvinia Zone, McKay Group, southeastern British Columbia, Canada

2020 ◽  
Vol 94 (4) ◽  
pp. 653-680
Author(s):  
Brian D.E. Chatterton
Keyword(s):  
British Columbia ◽  
New Species ◽  
Rare Species ◽  
Trace Fossils ◽  
Middle Part ◽  
Type Material ◽  
Younger Age ◽  
Two New Species ◽  
New Localities ◽  
A New Species

AbstractA well-preserved fauna of largely articulated trilobites is described from three new localities close to one another in the Bull River Valley, southeastern British Columbia. All the trilobites from these localities are from the lower or middle part of the Wujiajiania lyndasmithae Subzone of the Elvinia Zone, lower Jiangshanian, in the McKay Group. Two new species are proposed with types from these localities: Aciculolenus askewi and Cliffia nicoleae. The trilobite (and agnostid) fauna from these localities includes at least 20 species: Aciculolenus askewi n. sp., Agnostotes orientalis (Kobayashi, 1935), Cernuolimbus ludvigseni Chatterton and Gibb, 2016, Cliffia nicoleae n. sp., Elvinia roemeri (Shumard, 1861), Grandagnostus? species 1 of Chatterton and Gibb, 2016, Eugonocare? phillipi Chatterton and Gibb, 2016, Eugonocare? sp. A, Housia vacuna (Walcott, 1912), Irvingella convexa (Kobayashi, 1935), Irvingella flohri Resser, 1942, Irvingella species B Chatterton and Gibb, 2016, Olenaspella chrisnewi Chatterton and Gibb, 2016, Proceratopyge canadensis (Chatterton and Ludvigsen, 1998), Proceratopyge rectispinata (Troedsson, 1937), Pseudagnostus cf. P. josepha (Hall, 1863), Pseudagnostus securiger (Lake, 1906), Pseudeugonocare bispinatum (Kobayashi, 1962), Pterocephalia sp., and Wujiajiania lyndasmithae Chatterton and Gibb, 2016. Pseudagnostus securiger, a widespread early Jiangshanian species, has not been previously recorded from southeastern British Columbia. Non-trilobite fossils collected from these localities include brachiopods, rare trace fossils, a complete silica sponge (Hyalospongea), and a dendroid graptolite. The faunas from these localities are more diverse and better preserved than those from other previously documented localities of the same age in the region.Additional specimens of a rare species, found by amateur collectors in previously documented localities of slightly younger age (upper part of Wujiajiania lyndasmithae Subzone) in the same region, are documented. These new specimens, when combined with an earlier discovered specimen, provide adequate type material to propose a new species of Labiostria, L. gibbae, which may be useful for biostratigraphy.UUID:http://zoobank.org/89551eac-b3af-4b2b-8ef3-7c2e106a560d

Biology of the Bathylagid Fish, Leuroglossus schmidti, in the Strait of Georgia, British Columbia, Canada

1985 ◽  
Vol 42 (6) ◽  
pp. 1144-1153 ◽  
Author(s):  
J. C. Mason ◽  
A. C. Phillips
Keyword(s):  
British Columbia ◽  
Slow Growth ◽  
Calanoid Copepods ◽  
Strait Of Georgia ◽  
Merluccius Productus ◽  
Short Life Span ◽  
Adult Sex Ratio ◽  
Juvenile Stages ◽  
Eggs And Larvae ◽  
Temporal Overlap

The northern smoothtongue (Leuroglossus schmidti), a deep-sea smelt, coexists with Pacific hake (Merluccius productus) and walleye pollock (Theragra chalcogramma) in the Strait of Georgia, British Columbia. Their eggs and larvae rank third in abundance, and these three pelagic stocks show marked spatial and temporal overlap in deeper waters, especially during reproduction. Development to hatching occurs in the spring at depths > 150 m. Smelt larvae metamorphose at 22 mm standard length (SL), some 90 d from hatching, and juveniles join the adults at depths > 200 m by autumn. Larger juveniles mature as 2-yr-olds > 50 mm SL. Males seldom live beyond 3 yr or exceed 60 mm SL but females may live[Formula: see text] and attain 100 mm SL. Adult sex ratio is 2:3 in favor of females. Larger females are multibatch spawners, 2 batches/yr, with a mean fecundity of 100 eggs∙g−1∙batch−1. Larval diet includes eggs and early stages of crustaceans dominated by Copepoda. juveniles and adults fed mainly of polychaetes, amphipods, euphausiids, and calanoid copepods found at depths > 100 m. Except for the postlarval and early juvenile stages lasting some 3 mo, the life cycle is pursued at depths > 150 m. Their bathypelagic existence in the Strait emphasizes predator avoidance coupled with low fecundity, slow growth, and short life span.

TWO NEW SPECIES OF MELYRIDAE FROM CALIFORNIA AND ONE FROM BRITISH COLUMBIA, INCLUDING TWO NEW GENERA

1924 ◽  
Vol 56 (1) ◽  
pp. 1-5 ◽  
Author(s):  
F. E. Blaisdell
Keyword(s):  
British Columbia ◽  
New Species ◽  
New Genera ◽  
Intensive Study ◽  
Two New Species ◽  
Small Collection ◽  
Binocular Microscope ◽  
The Many

Recently while studying a small collection of Histeridae and Melyridae submitted to me by Mr. Ralph Hopping of the Canadian Entomological Branch, I discovered the interesting new species described below. With Col. Casey's excellent paper on the Melyridae (Coleopterological Notices VI, p. 456) at hand it becomes an easy matter to gain an understanding of the several genera. The species of this family are abundant, as proved by the many new forms which are constantly coming to hand. Two of the new species represent new genera. In studying the melyrids a moderately strong glass, or preferably a binocular microscope, should be used. It really requires much intensive study to fully appreciate and properly correlate the slight but valid characters presented by the members of this moderately large and homogeneous family.

A NEW GENUS OF CONIFEROPHAGOUS TORTRICIDAE, AND TWO NEW SPECIES (LEPIDOPTERA: TORTRICIDAE)

1978 ◽  
Vol 110 (6) ◽  
pp. 569-574 ◽  
Author(s):  
Akira Mutuura
Keyword(s):  
British Columbia ◽  
New Species ◽  
New Brunswick ◽  
Type Species ◽  
New Genus ◽  
Female Genitalia ◽  
Male And Female ◽  
Two New Species

AbstractThe new genus Archepandemis, with type-species Parapandemis borealis Freeman, 1965, is described. Two new species, A. coniferana from British Columbia and Alberta and A. morrisana from New Brunswick, are distinguished from A. borealis by characters of maculation and especially of male and female genitalia.

TWO NEW SPECIES OF DERMATITIS PRODUCING SCHISTOSOME CERCARIAE FROM CULTUS LAKE, BRITISH COLUMBIA

1955 ◽  
Vol 33 (3) ◽  
pp. 182-194 ◽  
Author(s):  
D. K. Edwards ◽  
Marjorie E. Jansch
Keyword(s):  
British Columbia ◽  
New Species ◽  
Female Adult ◽  
Two New Species

Two new schistosome cercariae capable of producing a dermatitis are described; Cercaria columbiensis, n.sp. and the cercaria of Trichobilharzia adamsi, n.sp. A female adult of T. adamsi n.sp. is also described.

Two New Species of Colladonus from British Columbia (Homoptera: Cicadellidae)

1952 ◽  
Vol 84 (8) ◽  
pp. 253-253
Author(s):  
W. Downes
Keyword(s):  
British Columbia ◽  
New Species ◽  
Middle Line ◽  
Male And Female ◽  
Two New Species

Length (male and female) 4.5 mm. Width 1.2 mm. Face slightly convex, vertex poinced, slightly more than right angled, 1½ times wider between the eyes than length at middle line. Pronotum twice as wide as long. Male plates spoon-shaped, curving upward at the tips. Female seventh segment evenly rounded at the sides, broadly excavated at the centre, with the usual strap-shaped projection, at the tip of which is a small V-shaped notch.

TWO NEW SPECIES OF TICKS FROM BRITISH COLUMBIA (IXODIDAE)

1941 ◽  
Vol 73 (12) ◽  
pp. 220-228 ◽  
Author(s):  
J. D. Gregson
Keyword(s):  
British Columbia ◽  
New Species ◽  
Study Material ◽  
The Past ◽  
Two New Species ◽  
The Stability

Two new species of Ixodes are described herewith. Both have been recognized for the past ten years as differing in certain respects from known species. Published descriptions of them, however, have been withheld pending a fuller knowledge of their distribution and further studies on the stability or certain differences between them and allied species. The acquisition of further study material having shown that differences are constant, the writer now feels justified in erecting two new species, thus differentiating these ticks from allied species with which they have been confused.

Two New Species of Heterotanytarsus Spärck, with Keys to Nearctic and Palaearctic Males and Pupae of the Genus (Diptera: Chironomidae)

1975 ◽  
Vol 32 (2) ◽  
pp. 259-270 ◽  
Author(s):  
Ole A. Sæther
Keyword(s):  
British Columbia ◽  
New Species ◽  
Fourth Instar ◽  
Lake Area ◽  
Palaearctic Species ◽  
Lake Algonquin ◽  
Two New Species

Two Nearctic species of Heterotanytarsus are described: Heterotanytarsus perennis n.sp. from male imagines, pupae, and fourth-instar larvae; H. nudalus n.sp. from imagines and pupae. These are the first published records and descriptions of Nearctic species of this genus.Keys are given for male imagines and pupae of the four Nearctic and Palaearctic species of the genus.Heterotanytarsus perennis has been recorded only from Marion Lake, British Columbia. The species is univoltine. Heterotanytarsus nudalus has been recorded only from Lake 192, Freshwater Institute Experimental Lake Area, Kenora, Ont. This species is bivoltine. A larva of Heterotanytarsus has been found in Sawley Lake, Algonquin Park, Ont. The findings, together with the absence of the characteristic larva from numerous other localities, indicate both species as northern oligotrophic members of chironomid communities.

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