Descriptions of Neolebouria tinkerbellae n.sp. (Trematoda: Digenea: Opecoelidae) from experimental fish hosts, and of metacercariae of N. tinkerbellae and an unidentified digenean from Pandalus jordani (Decapoda: Penaeidae) from the Pacific coast of Canada

1987 ◽  
Vol 65 (1) ◽  
pp. 188-193 ◽  
Author(s):  
A. B. Thompson ◽  
L. Margolis
Keyword(s):  
Gasterosteus Aculeatus ◽  
Pacific Coast ◽  
Pink Shrimp ◽  
Platichthys Stellatus ◽  
Experimental Fish ◽  
The Pacific ◽  
Unidentified Species ◽  
Leptocottus Armatus ◽  
Fish Hosts ◽  
Somatic Musculature

Neolebouria tinkerbellae n.sp. (Trematoda: Opecoelidae) is described from specimens obtained from experimental infections in Platichthys stellatus (Pallas), Gasterosteus aculeatus Linnaeus, and Leptocottus armatus Girard. The metacercarial stage occurs in the heart muscle of Pandalus jordani Rathbun (smooth pink shrimp) from the Pacific coast of Canada and forms a translucent white cyst. A second, unidentified species of metacercaria found in P. jordani forms a cyst surrounded by a brown pigmented layer in the somatic musculature. Both metacercariae are described.

Lepeophtheirus cuneifer sp. nov. (Copepoda: Caligidae), a Parasite of Fishes from the Pacific Coast of North America

1974 ◽  
Vol 31 (1) ◽  
pp. 43-47 ◽  
Author(s):  
Z. Kabata
Keyword(s):  
North America ◽  
Pacific Coast ◽  
Marine Fishes ◽  
Theragra Chalcogramma ◽  
The Pacific ◽  
Leptocottus Armatus

Lepeophtheirus cuneifer sp. nov. (Copepoda: Caligidae) is described and illustrated. This copepod is a parasite of marine fishes off the coast of Alaska, its hosts including Raja binoculata and Hexagrammos lagocephalus. Other possible hosts are Leptocottus armatus and Theragra chalcogramma.

The Species Problem within Gasterosteus aculeatus on the Pacific Coast of North America

1970 ◽  
Vol 27 (1) ◽  
pp. 147-155 ◽  
Author(s):  
D. W. Hagen ◽  
J. D. McPhail
Keyword(s):  
Gasterosteus Aculeatus ◽  
Pacific Coast ◽  
Simple Explanation ◽  
Species Problem ◽  
Insufficient Evidence ◽  
As Species ◽  
The Pacific ◽  
Interpopulation Variation ◽  
Pattern Of Variation ◽  
Conclusive Data

Two kinds of Gasterosteus aculeatus, leiurus and trachurus, are considered species in several streams and lakes in British Columbia. The two sticklebacks may act as species over a much wider range, but at present there is insufficient evidence for firm conclusions. The data of Miller and Hubbs (Copeia 1969: 52–69, 1969) given as evidence for introgression between leiurus and trachurus on the Pacific coast cannot be taken as well established. Should conclusive data for introgression be forthcoming, it would then seem that the two sticklebacks act as species in places and as subspecies in others. At least along the Pacific coast the pattern of variation found within Gasterosteus is exceedingly complex and cannot be accounted for wholly upon any simple explanation in terms of hybridization between leiurus and trachurus. There is evidence that much of the interpopulation variation is a result of adaptation and natural selection — not introgression. It will in fact require much more investigation before we can proclaim the causes of the variation we see so strikingly in Gasterosteus.

Six new species and three new records of infaunal alpheid shrimps from the genera Leptalpheus Williams, 1965 and Fenneralpheus Felder & Manning, 1986 (Crustacea, Decapoda)

Zootaxa ◽  
2011 ◽  
Vol 3041 (1) ◽  
pp. 1 ◽  
Author(s):  
ARTHUR ANKER
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
New Records ◽  
Caribbean Coast ◽  
Western Atlantic ◽  
The Pacific ◽  
New Localities ◽  
Unidentified Species ◽  
The Caribbean ◽  
First Time

Several species of the infaunal alpheid genera Leptalpheus Williams, 1965 and Fenneralpheus Felder & Manning, 1986 are described as new or reported from new localities in the tropical western Atlantic and eastern Pacific. In the genus Leptalpheus, five species are described as new: L. marginalis sp. nov. from the Caribbean coast of Colombia; L. penicillatus sp. nov. from the Pacific coast of Panama and Costa Rica; L. azuero sp. nov., L. hendrickxi sp. nov., and L. bicristatus sp. nov., all three from the Pacific coast of Panama. In addition, L. cf. forceps Williams, 1965 and L. felderi Anker, Vera Caripe & Lira, 2006 are reported for the first time from the Caribbean coast of Panama. Several unidentified species of Leptalpheus presently known from incomplete or immature specimens are also reported. In the genus Fenneralpheus, F. orabovis sp. nov. is described as new, whereas F. chacei Felder & Manning, 1986 is reported from the Caribbean coast of Panama, representing the first finding of this species outside its type locality in Florida. The generic diagnoses of both Leptalpheus and Fenneralpheus are emended to accommodate the new species.

The systematics and zoogeography of Gyrodactylus species (Monogenea) parasitizing gasterosteid fishes in North America

1985 ◽  
Vol 63 (4) ◽  
pp. 956-960 ◽  
Author(s):  
D. K. Cone ◽  
M. Wiles
Keyword(s):  
North America ◽  
Gasterosteus Aculeatus ◽  
Pacific Coast ◽  
Sister Species ◽  
Pungitius Pungitius ◽  
Culaea Inconstans ◽  
Fresh Material ◽  
Apeltes Quadracus ◽  
Unidentified Species ◽  
Host Fishes

The systematics and zoogeography of Gyrodactylus from gasterosteid fishes (Apeltes quadracus, Culaea inconstans, Pungitius pungitius, Gasterosteus aculeatus, and G. wheatlandi) in North America were examined through a study of museum-held specimens and fresh material collected from localities across Canada. Six species are considered specific to these fishes, namely: G. alexanderi Mizelle and Kritsky, 1967, G. avalonia Hanek and Threlfall, 1969 (syn. G. lairdi Hanek and Threlfall, 1969, G. memorialis Hanek and Threlfall, 1969, G. terranovae Hanek and Threlfall, 1969), G. canadensis Hanek and Threlfall, 1969, G. cameroni Hanek and Threlfall, 1970, G. eucaliae lkezaki and Hoffman, 1957, and an unidentified species resembling G. pungitii Malmberg, 1964. The fauna has striking morphological similarities to that parasitizing the same host fishes in Eurasia. In fact, G. avalonia, G. canadensis, and the unconfirmed species are considered sister species to G. arcuatus Bychowsky, 1933, G. branchicus Malmberg, 1964, and G. pungitii, respectively. The match-ups are considered to have evolved from three lineages that parasitized G. aculeatus and P. pungitius prior to Pleistocene dispersal that resulted in these fishes and their parasites extending over much of the northern hemisphere. Gyrodactylus cameroni from A. quadracus is probably of North American origin and a sister species of G. avalonia. Gyrodactylus alexanderi from Pacific coast G. aculeatus and G. eucaliae from C. inconstans in the continent's central region have ties with a Pacific lineage. The parasites' geographical distributions and possible evolutionary histories since Pleistocene glaciation are discussed.

THE CESTODA OF CANADIAN FISHES: I. THE PACIFIC COAST REGION

1932 ◽  
Vol 7 (1) ◽  
pp. 221-243 ◽  
Author(s):  
ROBERT ARNOLD WARDLE
Keyword(s):  
British Columbia ◽  
Pacific Coast ◽  
Pacific Salmon ◽  
Ophiodon Elongatus ◽  
The Pacific ◽  
The Common ◽  
Leptocottus Armatus ◽  
Coast Region

The results are given of a survey of the cestode fauna of 1,500 fishes representing 26 species common in the straits of Georgia, British Columbia. The survey yielded only five species of adult and four species of larval cestodes. No cestodes were found in members of the Pleuronectidae and Embiotocidae and—with one exception—the Scorpaenidae, and the rate of infection in other families was singularly low.The cestodarian species in Hydrolagus colliei is regarded as identical with the Atlantic Gyrocotyle urna Gr. et Wag. The common cestode of the Pacific salmon is regarded as Eubothrium oncorhynchi n. sp., closely allied with the European Eubothrium crassum Bloch. Bothriocephalus scorpii Müll. occurred in Leptocottus armatus and Hexagrammos decagrammus, Bothriocephalus occidentalis Linton in Leptocottus armatus and Sebastodes maliger, and Gilquinia tetrabothrius v. Ben. in Squalus sucklii; a redescription is given of the two latter species. The larval forms recorded were two species of Diphyllobothrium in Oncorhynchus, a species of Nybelinia in Ophiodon elongatus, and a species of Phyllobothrium in Oncorhynchus.

The Philological Association of The Pacific Coast

PMLA ◽  
1935 ◽  
Vol 50 (4) ◽  
pp. 1373-1374
Keyword(s):  
Annual Meeting ◽  
Pacific Coast ◽  
Stanford University ◽  
The Pacific

The thirty-seventh annual meeting of the Philological Association of the Pacific Coast was held at Stanford University, California, on November 29 and 30, 1935.

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