EUBRANCHIPUS INTRICATUS N.SP., A WIDELY DISTRIBUTED NORTH AMERICAN FAIRY-SHRIMP, WITH A NOTE ON ITS ECOLOGY

1967 ◽  
Vol 45 (5) ◽  
pp. 663-666 ◽  
Author(s):  
R. Hartland-Rowe
Keyword(s):  
North America ◽  
North American ◽  
Temporary Pools ◽  
The Other ◽  
Fairy Shrimp ◽  
Low Salinity

The name Chirocephalopsis bundyi (Forbes 1876) has been applied to two species. One of these is Eubranchipus bundyi (Forbes), of which Eubranchipus gelidus (Hay and Hay, 1889) is a synonym. The other, referred to by Brtek (1966) as E. gelidus (Hay and Hay), is described as E. intricatus n.sp. Both species are widely distributed in North America and occur in temporary pools of low salinity.

scholarly journals Eurasian and North American phylogeny of Turolian hipparionine horses (Perissodactyla, Mammalia) in China

1992 ◽  
Vol 6 ◽  
pp. 305-305
Author(s):  
Mahito Watabe
Keyword(s):  
North America ◽  
North American ◽  
Northern China ◽  
Sensu Stricto ◽  
The Other ◽  
Dental Morphology ◽  
Facial Morphology ◽  
Open Land ◽  
Specialized Form ◽  
Eastern Half

The late Miocene Chinese hipparions are morphologically diversified showing similarity to both western Old World's and North American forms. Two Chinese taxa that are phylogenetically related to western Old World's forms are Hipparion fossatum (= H. forstende) from Baode (Shanxi) and H. hippidiodus from Qingyang (Gansu) and Baode. The former is related to H. mediterraneum and the latter to H. urmiense - platygenys from the Turolian localities in the western Old World. H. fossatum and H. hippidiodus are associated with the “dorcadoides” (open-land) and “mixed” faunas in northern China. Hipparion fossatum that is characterized by POF located close to the orbit co-occurs with large and morphologically specialized form, H. dermatorhinum in Baode (Loc.30). H. hippidiodus with reduced POF is discovered with smaller H. coelophyes in Loc. 43, 44 (Baode) and Loc. 115 (Gansu).The hipparions associated with the “gaudryi” (forest) fauna are characterized by well defined and small POF located far from the orbit. Those forms are: H. platyodus from Loc. 70; H. ptychodus from Loc. 73; H. tylodus from Hsi-Liang in Yushe - Wuxiang basins; and H. sefvei from Loc. 12 at Xin-an in Henan province. H. coelophyes from Baode (Loc.43 & 44) and Qingyang (Loc. 115) also show similar facial morphology to the these forms, although it has small size and shallow POF. Those forms are similar in facial and dental morphology to Hipparion sensu stricto and some species of Cormohipparion in North America.The assemblages of Chinese hipparions are composed of two groups whose members are phylogenetically similar to the forms from both western part of Eurasia and North America. The “gaudryi” fauna is considered younger than the other two on the basis of faunal analyses. The similarity in hipparionine taxonomy between northern China and North America in the latest Miocene is an evidences for possible faunal interchange(s) occurred during that period, as suggested by taxonomic analyses on carnivores and proboscideans in eastern half of Eurasia and North America.

North American Devonian Carydiidae (Bivalvia): systematics, phylogeny, and implications in early diversification of the class

1986 ◽  
Vol 60 (2) ◽  
pp. 302-326 ◽  
Author(s):  
J. Bowman Bailey
Keyword(s):  
North America ◽  
Diagnostic Criteria ◽  
North American ◽  
The Other ◽  
Eastern North America ◽  
Higher Taxa ◽  
Early Diversification ◽  
European Family

Although past authors have regarded the Carydiidae as a European family, six species of Carydium are reported here from the Devonian of eastern North America. Two of these belong to a single morphocline common in the Hamilton shales; another (Carydium clarkei) is new. Due to lack of well preserved hinges most of these species were earlier placed in Nucula because serrations or striations on dental elements were mistaken for a taxodont dentition.New data require modification of carydiid phylogenies of earlier authors. 1) Two independent pre-Devonian derivations from Lyrodesma are inferred. 2) Noradonta shergoldi, a carydiid-like lyrodesmatid from the Ordovician of Australia, is recognized as an important phyletic link between the Carydiidae and the Lyrodesmatidae. 3) The previous view of three distinct lineages within Carydium is not supported. Anamorphic data suggest as few as two main lineages and show two of the hinge types to be homeomorphic grades appearing separately or within one or the other of the main lineages.Though too young to be directly involved in the early diversification of the Bivalvia, the actinodont, subheterodont, and pseudotaxodont hinge morphologies of Carydium supply models for the origin of heterodont and taxodont hinges. Anamorphic and other evidence suggests that both are iterative types, and fundamental differences between them may be few. Hence, their preeminence as diagnostic criteria among higher taxa is diminished.

A morphological phylogenetic analysis of Aesculus L. and Billia Peyr. (Sapindaceae)

2001 ◽  
Vol 79 (2) ◽  
pp. 154-169 ◽  
Author(s):  
Félix Forest ◽  
Josée Nadia Drouin ◽  
René Charest ◽  
Luc Brouillet ◽  
Anne Bruneau
Keyword(s):  
Phylogenetic Analysis ◽  
North America ◽  
Central America ◽  
Northern Hemisphere ◽  
North American ◽  
Morphological Characters ◽  
Character Evolution ◽  
The Other ◽  
Eastern Asia ◽  
Asian Origin

The hippocastanaceous Sapindaceae (family Hippocastanaceae) consists of two genera: Aesculus and Billia. The genus Aesculus (buckeyes) is distributed throughout the northern hemisphere. Twelve of the thirteen species of Aesculus are found in eastern Asia and North America, and one is native to Europe. The two species of the genus Billia are found in South and Central America. Aesculus is traditionally divided into five sections. This analysis, based on morphological characters, suggests that the monotypic section Parryanae (Aesculus parryi Gray) is sister to the remainder of the genus, and the other species are divided into two clades. One clade comprises all species from southeastern North America with the monotypic section Macrothyrsus (Aesculus parviflora Walt.) as sister to section Pavia. The other clade consists of all species found in Eurasia included in sections Aesculus and Calothyrsus, with the only North American member of this clade (Aesculus californica (Spach) Nutall) as sister to the rest of the group. According to this analysis, section Calothyrsus is rendered paraphyletic by the inclusion of section Aesculus. In contrast to previous studies that suggest an Asian origin for the genus, our study suggests an American origin for Aesculus from an ancestor similar to Billia with a single migration to Eurasia via the Bering land bridge.Key words: Aesculus, Billia, character evolution, Hippocastanaceae, morphology, phylogeny, Sapindaceae.

scholarly journals THE BIOLOGY OF THREE NORTH AMERICAN SPECIES OF MESOVELIA (HEMIPTERA-MESOVELIIDAE).,

1932 ◽  
Vol 64 (4) ◽  
pp. 88-95 ◽  
Author(s):  
Clarence H. Hoffmann
Keyword(s):  
Life History ◽  
North America ◽  
North American ◽  
Life Histories ◽  
Lake Michigan ◽  
Common Species ◽  
North American Species ◽  
The Other

The purpose of this paper is to present what is known at the present time concerning the life histories and habits of the Mesoveliidae, particularly those of three species of the genus Mesovelia Muls. found in North America. Studies on our most common species, Mesovelia mulsanti bisignata Uhler, were carried out in Michigan and Kansas, while biological notes on the other two species were taken in the region of Douglas Lake, Michigan, their only known habitat. Isolated rearings and life history studies of all three species were made at Lawrence, Kansas.

HELOPHORUS ORIENTALIS (COLEOPTERA: HYDROPHILIDAE), A PARTHENOGENETIC WATER BEETLE FROM SIBERIA AND NORTH AMERICA, AND A BRITISH PLEISTOCENE FOSSIL

1970 ◽  
Vol 102 (2) ◽  
pp. 129-143 ◽  
Author(s):  
R. B. Angus
Keyword(s):  
North America ◽  
North American ◽  
Life Histories ◽  
The Other ◽  
Water Beetle ◽  
Laboratory Breeding

AbstractThe Helophorus species recorded by McCorkle as H. brevipalpis Bedel, and by earlier workers as H. granularis (L.) is found, on examination of the types, to be H. orientalis Motschulsky, a species widespread in eastern Siberia.The types of H. orientalis are described, and a lectotype is designated. The type of H. sahlbergi Kuwert, a species synonymous with H. orienta’is, is also described. Further Siberian and North American material is described with reference to the type, and the means of distinguishing H. orientalis from H. granularis and H. brevipalpis are discussed.Fossil prothoraces from Pleistocene deposits at Brandon, Warwickshire and Great Billing, Northamptonshire, England, are referred to H. orientalis.The life histories of the three species are compared, and differences in the egg cocoons and larvae are illustrated. H. orientalis is shown by laboratory breeding to be parthenogenetic. In the other species no maleless populations are known, and although there is no proof that they cannot breed without males, this is considered very unlikely.The ecologies of the three species are discussed.

DESCRIPTIONS OF THE LARVAE OF PTEROSTICHUS OHIONIS CSIKI AND P. BLANCHARDI HORN WITH A KEY TO LARVAE OF EASTERN NORTH AMERICAN PTEROSTICHINI (COLEOPTERA: CARABIDAE)

1989 ◽  
Vol 121 (1) ◽  
pp. 27-42 ◽  
Author(s):  
Yves Bousquet
Keyword(s):  
North America ◽  
North American ◽  
The Other ◽  
Eastern North America

AbstractThe larvae of Pterostichus (Bothriopterus) ohionis Csiki and P. (Gastrellarius) blanchardi Horn are described and compared respectively with the other known larvae of Bothriopterus Chaudoir and Gastrellarius Casey. A key to larvae of 38 species of Pterostichini occurring in eastern North America is presented.

Cestodes of the genus Hymenolepis Weinland, 1858 (sensu lato) from bats in North America and Hawaii

1975 ◽  
Vol 53 (11) ◽  
pp. 1537-1551 ◽  
Author(s):  
R. L. Rausch
Keyword(s):  
North America ◽  
North American ◽  
The Other ◽  
Lasiurus Cinereus ◽  
Hoary Bat ◽  
Vespertilionid Bats ◽  
Lasiurus Cinereus Semotus

Hymenolepidid cestodes obtained through the examination of 539 vespertilionid bats representing 15 species and five genera, collected in three regions of North America and on the Island of Hawaii, were studied. Three species of the genus Hymenolepis Weinland, 1858 sensu lato, previously known from nearctic Chiroptera, are redescribed: H. christensoni Macy, 1931, H. roudabushi Macy and Rausch, 1946, and H. gertschi Macy, 1947. A fourth, H. lasionycteridis sp. nov., recorded from bats of eight species in North America and Hawaii, is described and distinguished morphologically from the other species of Hymenolepis s.l. characterized in part by the presence of an armed rostellum and occurring in bats. The presence of this cestode in the Hawaiian hoary bat, Lasiurus cinereus semotus (Allen), indicates that at least some of the progenitors of the population on the Island of Hawaii were migrants of western North American origin. The zoogeography of cestodes in bats is briefly discussed.

scholarly journals Falkland Island Sedge Wrens (Cistothorus Platensis) Imitate Rather Than Improvise Large Song Repertoires

The Auk ◽  
2002 ◽  
Vol 119 (2) ◽  
pp. 523-528 ◽  
Author(s):  
Donald E. Kroodsma ◽  
Robin W. Woods ◽  
Elijah A. Goodwin
Keyword(s):  
North America ◽  
Breeding Season ◽  
North American ◽  
Site Fidelity ◽  
Breeding Site ◽  
The Other ◽  
Falkland Islands ◽  
The North ◽  
Sedge Wren ◽  
Song Repertoires

Abstract Among songbirds, does reduced fidelity to a breeding site lead to vocal improvisation? Data for Cistothorus wrens suggest it does, because North American Sedge Wrens (C. platensis) have low breeding-site fidelity and improvise their large song repertoires, but sedentary or site-faithful populations of this and other Cistothorus species in the Neotropics and North America all imitate. We attempted to falsify this hypothesis by studying extreme south-temperate zone populations of Sedge Wrens in the Falkland Islands. We banded and recorded males on Kidney Island and Carcass Island, and then compared song matching among males both within and between islands. Birds on those islands were highly site-faithful from one breeding season to the next. Song repertoires were large, up to 400 in one bird, and songs of birds within an island were more similar to each other than to songs on the other island, showing that these birds do imitate. These results further support the idea that site fidelity promotes imitation of neighbors, and continue to highlight the unique correlation between reduced site-fidelity and song improvisation in the North American Sedge Wren.

Charophytivory, Playas y Papalotes, a Local Paradigm of Global Relevance

1999 ◽  
Vol 47 (3) ◽  
pp. 399 ◽  
Author(s):  
Vernon W. Proctor
Keyword(s):  
New Mexico ◽  
North America ◽  
North American ◽  
Hyalella Azteca ◽  
The Other ◽  
Habitat Types ◽  
Run Off ◽  
Freshwater Amphipods ◽  
The Common ◽  
Grazing Pressures

The Llano Estacado region of western Texas and adjacent New Mexico has one of the most species-rich charophyte floras known for North America, but upon closer inspection this flora is seen to consist of two, strictly non-overlapping segments, one of 12 taxa, the other of nine. The larger group of species is confined to a vast series of shallow, ephemerally inundated depressions known as playas. These normally fill with run-off rainwater in late May or early June, remain flooded through early to mid-September before eventually drying to the curling polygon stage near the end of September. Approximately 8 months later the cycle is repeated. The remaining nine charophytes are confined to permanently inundated sites, the most common of which are livestock-watering windmill complexes, known as papalotes. Rarely, if ever, are members of the playa-12 encountered in papalotes or members of the papalote-9 in playas. The underlying bases for this ‘two flora’ dichotomy stem from the contrasting amphipod populations engendered by the two habitat types. Most freshwater amphipods (scuds), including the common North American herbivore Hyalella azteca (Saussure), cannot withstand complete desiccation which, accordingly, prevents its colonisation of playas. By contrast, scuds often reach exceptionally high densities in the associated concrete or metal tanques of papalotes, since such specialised habitats are usually free of vertebrate predators, e.g. birds, fish, turtles, salamanders. Scud- resistant charophytes are larger and slower to develop gametangia, features inimical to success in short- lived playas. By contrast, precocious charophyte opportunists–typical of playa floras–cannot withstand the grazing pressures of papalote (or papalote-like) environments. While charophytivory is assumed to be of worldwide occurrence and significance, it has been clearly demonstrated only in the unique juxtaposition of ‘playas y papalotes’.

REVISION OF THE NORTH AMERICAN SPECIES OF SLATEROCORIS (HETEROPTERA: MIRIDAE)

1968 ◽  
Vol 100 (11) ◽  
pp. 1121-1137 ◽  
Author(s):  
Leonard A. Kelton
Keyword(s):  
British Columbia ◽  
New Species ◽  
North America ◽  
North American ◽  
Male Genitalia ◽  
North American Species ◽  
The Other ◽  
Subsequent Paper ◽  
The North

AbstractNine new species of Slaterocoris Wagner are described from North America: pilosus from British Columbia; alpinus from Colorado; apache from Arizona, Colorado, and Utah; flavipes, solidaginis, and sparsus from California; argenteus, grandis, and simplex from Durango, Mexico. The other species in the genus are: ambrosiae (Kngt.), atratus (Uhl.), atritibialis (Kngt.), breviatus (Kngt.), croceipes (Uhl.), hirtus (Kngt.), longipennis Kngt., mohri (Kngt.), pallidicornis (Kngt.), pallipes (Kngt.). robustus (Uhl.), rubrofemoratus Kngt., sheridani Kngt., stygicus (Say), and utahensis Kngt. Strongylocoris uniformis Van D. is placed in synonymy with Stiphrosoma robusta Uhl. Strongylocoris albibasis Knight does not belong to Slaterocoris and will be dealt with in a subsequent paper. All species are keyed and the male genitalia illustrated.

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