New species of the rare early Eocene creodont Galecyon and the radiation of early Hyaenodontidae

2011 ◽  
Vol 85 (2) ◽  
pp. 315-336 ◽  
Author(s):  
Shawn P. Zack
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
North American ◽  
Type Species ◽  
New Records ◽  
North American Species ◽  
Early Eocene ◽  
Two New Species ◽  
Stratigraphic Position ◽  
Stratigraphic Range

Galecyon is one of the first appearing hyaenodontid creodonts, as well as one of the most poorly known. New specimens greatly improve our understanding of the morphology of this early Eocene genus, thereby enhance knowledge of the earliest radiation of Hyaenodontidae, and include the first associated upper dental remains, as well as fragmentary cranial remains. The new records substantially expand the stratigraphic range of the genus and allow recognition of two new species. The first, Galecyon peregrinus n. sp., is a small, early species that includes the first records of Galecyon from the earliest Eocene Wa-0 interval. The second, Galecyon chronius n. sp., is a large, terminal species, represented by numerous specimens that extend the range of the genus into the late Wasatchian. The type species, G. mordax, is restricted to specimens that are intermediate in size and stratigraphic position. Phylogenetic analysis of early hyaenodontids confirms the monophyly of Galecyon and places it basal to Prolimnocyon, Prototomus, and Pyrocyon. Arfia is identified as the earliest diverging hyaenodontid sampled, contrasting with prior support for a more crownward position. Prototomus martis is more closely allied to Pyrocyon than to other species of Prototomus. The three North American species of Galecyon form a probable anagenetic lineage.

Review of the genus Paradonus Stibick, 1971 (Elateridae: Negastriinae), with three new North American species

Zootaxa ◽  
2020 ◽  
Vol 4750 (4) ◽  
pp. 524-544
Author(s):  
FRANK E. ETZLER
Keyword(s):  
New Species ◽  
North American ◽  
Type Species ◽  
North American Species ◽  
New Combination ◽  
Widespread Species

Three new North American species of Paradonus Stibick are described: Paradonus gallatinensis new species, Paradonus gustafsoni new species and Paradonus stibicki new species is described for specimens formerly called Paradonus pectoralis sensu Stibick, 1991. The type species of the genus, Paradonus pectoralis Say, 1839 is redefined, and the Holotype of Paradonus olivereae Stibick, 1991 is designated as the Neotype of P. pectoralis, a common, widespread species. The genus is redescribed, a checklist of species is included, and notes on the described species north of Mexico are given. Hypnoidus guatemalensis Champion, 1895 is removed from the genus and placed in Zorochros Thompson, 1858 as Zorochros guatemalensis (Champion, 1895) new combination. A key to all described species north of Mexico is provided, along with illustrations of characters used in identifying species. 

THE CESTODA OF CANADIAN FISHES: II. THE HUDSON BAY DRAINAGE SYSTEM

1932 ◽  
Vol 7 (1) ◽  
pp. 377-403 ◽  
Author(s):  
ROBERT ARNOLD WARDLE
Keyword(s):  
New Species ◽  
North American ◽  
Drainage System ◽  
North American Species ◽  
Hudson Bay ◽  
Lota Lota ◽  
European Species ◽  
Two New Species ◽  
The Individual

The results are given of a survey of the cestode fauna of several thousand fishes representing thirty species common in the Hudson bay drainage system, particularly in the Hudson bay and in the larger lakes of Manitoba and Saskatchewan. The survey yielded twelve species of adult and seven species of larval cestodes, ten of which were identical with European species, while seven were purely North American. The incidence of infection was high and the individual intensity was heavy. The highest incidence and heaviest intensity occurred among nektonic types such as Hiodon, Leucichthys, Esox, Lucioperca and Salvelinus. Benthonic forms such as Catostomus, Ameiurus, Lota, Acipenser and Coregonus, were found relatively free from infection.The North American species of Cyathocephalus and Diplocotyle are regarded as identical with the European species C. truncatus and D. Olrikii; the species C. americanus Cooper, and Bothrimonus intermedius Cooper are rejected. The triaenophorid common in the area is regarded as Triaenophorus tricuspidatus (Bloch), and two morphae are recognized, microdentatus and megadentatus, the latter equivalent to T. robustus (Olsson). Bothriocephalus cuspidatus Cooper is regarded as comprising three sub-species, cuspidatus, hiodontos and luciopercae. The eubothriid cestode in Lota lota maculosa is regarded as identical with the European E. rugosum, but comprising two morphae, conformatus and deformatus. Two new species of Proteocephalus are described, namely coregoni from Coregonus atikameg, and luciopercae from Lucioperca vitreum.

Analysis of the genus Gymnodampia (Acari: Oribatida), with redescription of G. setata and description of two new species from North America

2004 ◽  
Vol 136 (6) ◽  
pp. 793-821 ◽  
Author(s):  
Jun Chen ◽  
Roy A. Norton ◽  
Valerie M. Behan-Pelletier ◽  
Hui-Fu Wang
Keyword(s):  
New Species ◽  
North America ◽  
Type Species ◽  
Oribatid Mite ◽  
North American Species ◽  
Generic Diagnosis ◽  
The Family ◽  
Two New Species ◽  
Circular Line ◽  
Mite Genus

AbstractMorphology, distribution, and habitat data are presented for three species of the oribatid mite genus Gymnodampia Jacot occurring in North America. A revised generic diagnosis is given and the type species Gymnodampia setata (Berlese) is redescribed based on topotypic material from Missouri. Immatures of G. setata are described and aspects of their biology are presented. Two new species from North America, G. jacotisp. nov. and G. lindquistisp. nov., are proposed and described on the basis of adults, and a key is given for North American species of Gymnodampia. The ameroid genera Cristamerus Hammer, from Pakistan and China, and Defectamerus Aoki, from Japan, Korea, and China, are considered junior synonyms of Gymnodampia, and G. conformis (Fujikawa) is considered a junior synonym of G. fusca (Fujikawa). Immatures of G. setata are apheredermous, but with a circular line of dehiscence, whereas known immatures of the superfamily Ameroidea are eupheredermous. Nonetheless, without convincing apomorphic traits linking Gymnodampia to any known apheredermous family of Brachypylina, we hypothesize that Gymnodampia has lost the eupheredermy characteristic of Ameroidea, and we place it in the family Ameridae on the basis of adult similarities.

scholarly journals The first North American Propterodon (Hyaenodonta: Hyaenodontidae), a new species from the late Uintan of Utah

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e8136 ◽  
Author(s):  
Shawn P. Zack
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
North American ◽  
Middle Eocene ◽  
North American Species ◽  
New Combination ◽  
Mammalian Fauna ◽  
Critical Interval ◽  
Uinta Basin ◽  
A New Species

The carnivorous mammalian fauna from the Uintan (late middle Eocene) of North America remains relatively poorly documented. This is unfortunate, as this is a critical interval in the transition from “creodont” to carnivoran dominated carnivore guilds. This study reports a new species from the Uinta Formation of the Uinta Basin, Utah, the first North American species of the otherwise Asian hyaenodont genus Propterodon. The new species, Propterodon witteri, represented by a dentary with M2-3 from the late Uintan Leota Quarry, is larger than the well-known P. morrisi and P. tongi and has a larger M3 talonid, but is otherwise very similar. A phylogenetic analysis of hyaenodont interrelationships recovers P. witteri as a hyaenodontine but is generally poorly resolved. A relationship between Hyaenodontinae and Oxyaenoides, recovered by many recent analyses, is not supported. Among the Asian species of Propterodon, P. pishigouensis is reidentified as a machaeroidine oxyaenid and recombined as Apataelurus pishigouensis new combination. Isphanatherium ferganensis may also represent an Asian machaeroidine. Identification of a North American species of Propterodon and an Asian Apataelurus increases the similarity of North American Uintan and Asian Irdinmanhan faunas and suggests that there was substantial exchange of carnivorous fauna during the late middle Eocene.

A REARRANGEMENT OF THE NORTH AMERICAN SPECIES OF CLUBIONA, WITH DESCRIPTIONS OF TWO NEW SPECIES (ARANEIDA: CLUBIONIDAE)

1976 ◽  
Vol 108 (11) ◽  
pp. 1155-1165 ◽  
Author(s):  
C. D. Dondale ◽  
J. H. Redner
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
North American Species ◽  
Eastern North America ◽  
The North ◽  
Two New Species ◽  
Species Groups ◽  
Group 2 ◽  
Group 1

AbstractThe 50 known species of North American Clubiona Latreille, 1804 are rearranged in seven species-groups as follows: trivialis group (1 Holarctic, 4 Nearctic), obesa group (11 Nearctic), reclusa group (2 Holarctic, 3 Nearctic), pallidula group (1 Holarctic), abboti group (25 Nearctic), lutescens group (1 Holarctic, 1 Nearctic), maritima group (1 Nearctic). Clubiona quebecana and C. angulata are described as new species from eastern North America. C. kuratai Roddy, 1966, originally described from the female only, is synonymized under C. chippewa Gertsch, 1941, which was originally described from the male only. C. opeongo Edwards, 1958 and C. bishopi Edwards, 1958 are redescribed, the male of the former and the female of the latter not having been previously described.

TWO NEW SPECIES OF BOLBOCEROSOMA WITH NOTES ON THE HABITS AND GENITALIA OF OTHER SPECIES.

1928 ◽  
Vol 60 (8) ◽  
pp. 192-196 ◽  
Author(s):  
W. J. Brown
Keyword(s):  
New Species ◽  
North American ◽  
North American Species ◽  
The North ◽  
Two New Species

The purpose of the present paper is to describe two new species of Bolbocerosoma and to figure the genitalia of the North American species of this genus. It therefore supplements the paper of Dawson and McColloch (Can. Ent., LVI, 9-15).

The genus Ectemnia (Diptera: Simuliidae): taxonomy, polytene chromosomes, new species, and phylogeny

1997 ◽  
Vol 75 (11) ◽  
pp. 1896-1915 ◽  
Author(s):  
J. K. Moulton ◽  
P. H. Adler
Keyword(s):  
New Species ◽  
Coastal Plain ◽  
North American ◽  
Sex Chromosome ◽  
Polytene Chromosomes ◽  
North American Species ◽  
Immature Stages ◽  
Two New Species ◽  
Southeastern Coastal Plain

The genus Ectemnia Enderlein consists of four North American species, two of which are described as new. The two previously described species, E. invenusta and E. taeniatifrons, are primarily northern in distribution and their immature stages occupy rocky rivers. The two new species, E. primaeva and E. reclusa, occur in the southeastern Coastal Plain; their immature stages inhabit blackwater swamp streams and sandy rivers. Keys are provided for larvae, pupae, and adults. The polytene chromosomes of all species are analyzed in detail. Seven fixed inversions, 10 unshared autosomal polymorphisms, two centromere-band expressions, and five sex-chromosome systems are recognized among the four species. At least 10 synapomorphies indicate that the genus is monophyletic. Phylogenetically, Ectemnia is in a clade with Metacnephia and Simulium.

A review of the North American species of Hemipenthes Loew, 1869 (Diptera: Bombyliidae)

Zootaxa ◽  
2009 ◽  
Vol 2074 (1) ◽  
pp. 1-49 ◽  
Author(s):  
OMAR ÁVALOS-HERNÁNDEZ
Keyword(s):  
New Species ◽  
North American ◽  
North American Species ◽  
Type Locality ◽  
The North ◽  
Two New Species

Twenty-three North American species of the genus Hemipenthes Loew are reviewed. Two new species are described (type locality in parentheses): Hemipenthes albus (Mexico, Zacatecas: 25 mi NW Zacatecas), n. sp. and H. translucens (Mexico, Morelos: Quilamula), n. sp. The following synonymies were founded: H. eumenes (Osten Sacken, 1886) is a synonym of H. seminigra Loew, 1869, n. syn.; H. floridiana (Macquart, 1850), H. pima (Painter, 1962), and H. sagata (Loew, 1869 are synonyms of H. celeris (Wiedemann, 1828), n. syns. Evidence presented here shows that H. morio (Linnaeus, 1758) has a Palearctic distribution, not Holarctic as had been considered. Chrysanthrax yaqui (Painter, 1962) is transferred from Villa, n. comb.

New Early Eocene mollusks from the Orocopia Mountains, southern California

1986 ◽  
Vol 60 (4) ◽  
pp. 851-864 ◽  
Author(s):  
Richard L. Squires ◽  
David M. Advocate
Keyword(s):  
New Species ◽  
North American ◽  
West Coast ◽  
Southern California ◽  
Submarine Canyon ◽  
North American Species ◽  
Early Eocene ◽  
Paris Basin ◽  
The West ◽  
South Central

Five new species of mollusks are described from the early Eocene Maniobra Formation, northeastern Orocopia Mountains, southern California. The new species are from the basal part of the formation, and the fauna is indicative of the West Coast provincial molluscan early Eocene “Capay Stage.” The mollusks are shallow-marine forms that were transported a short distance into slope/upper submarine-canyon deposits.Chedevillia saltonensis n. sp. and Eocypraea? maniobraensis n. sp. resemble Eocene species from Paris Basin, France. Phalium (Semicassis) louella n. sp. is the earliest North American species of Semicassis. Volutilithes orocopiaensis n. sp. is the earliest North American species of this genus and resembles V. muricinus from Paris Basin. Glossus (Meiocardia) susukii n. sp. is the earliest reported species of Meiocardia on the West Coast of North and South America.Galeodea gallica, a species previously only known from lower Eocene strata in the Anglo-Paris Basin, is tentatively identified from the Maniobra Formation. Campanilopa dilloni, previously only known from south-central California, is present in the formation. Supplementary descriptions and illustrations are given for these two species.The Maniobra species described have a close relationship to species characteristic of the Eurasian Tethyan paleobiogeographic province. The age of the Maniobra mollusks permits greater resolution of the timing of the westward migration of the Eurasian species, indicating that much of it occurred during early Eocene and/or late Paleocene time.

The "Hamopontonia corallicola" Bruce, 1970 species complex (Crustacea, Decapoda, Palaemonidae): new records and new species from the Great Barrier Reef, Australia

Zootaxa ◽  
2012 ◽  
Vol 3272 (1) ◽  
pp. 35
Author(s):  
IVAN MARIN
Keyword(s):  
New Species ◽  
Great Barrier Reef ◽  
Type Species ◽  
Species Complex ◽  
New Records ◽  
Morphological Features ◽  
Barrier Reef ◽  
Northern Australia ◽  
Lizard Island ◽  
Two New Species

The “Hamopontonia corallicola” Bruce, 1970 species complex is partly revised. The type species of the genus, H. corallicolaBruce, 1970, is redescribed based on material from Northern Australia. Additionally, two new species of the genus associatedwith hard corals are described from Lizard Island, the Great Barrier Reef, Australia. Hamopontonia fungicola sp. nov. isassociated with fungiid coral Heliofungia actiniformis (Quoy & Gaimard, 1833) and H. physogyra sp. nov. is associated withcaryophyllid coral Physogyra lichtensteini Milne-Edwards & Haime, 1851. Both species clearly differ from their congeners indistinctive coloration and morphological features. A differential key and remarks on coloration of all described species of the genus are provided.

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