Sponges of the Guyana Shelf

Zootaxa ◽  
2017 ◽  
Vol 4217 (1) ◽  
pp. 1 ◽  
Author(s):  
ROB W.M. VAN SOEST
Keyword(s):  
New Species ◽  
Species Level ◽  
Soft Bottom ◽  
Alphabetical Order ◽  
The North ◽  
New Subgenus ◽  
Fossil Reef ◽  
The Caribbean ◽  
Hard Substrates ◽  
Occurrence Of Species

Sponges collected on the Guyana Shelf, predominantly in Suriname offshore waters, by Dutch HMS ‘Snellius’ O.C.P.S. 1966, HMS ’Luymes’ O.C.P.S. II 1969, and HMS ‘Luymes’ Guyana Shelf 1970 expeditions are described in this study. Sponges were obtained by trawling, dredging or grabbing on sandy, muddy, shelly, and fossil reef bottoms at 88 stations between 19 and 681 m depth. A total of 351 samples were identified to species level, each consisting of one or more specimens of a given species from each individual station (together comprising 547 individuals and fragments). The collection yielded 119 species together belonging to all sponge classes, but in large majority are Demospongiae. All species are identified to species level, occasionally tentatively, and all are described and illustrated. A new subgenus is proposed, Tedania (Stylotedania) subgen. nov. and a previously synonymized genus, Tylosigma Topsent, 1894 is revived. Thirtysix species were found to be new to science, excluding the first Central West Atlantic record of the genus Halicnemia, not named at the species level because of lack of sufficient material. The new species erected are, in alphabetical order: Amphoriscus ancora sp. nov., Biemna rhabdotylostylota sp. nov., Callyspongia (Callyspongia) scutica sp. nov., Chelonaplysilla americana sp. nov., Cladocroce guyanensis sp. nov., Clathria (Axosuberites) riosae sp. nov., Clathria (Clathria) gomezae sp. nov., Clathria (Microciona) snelliusae sp. nov., Clathria (Thalysias) complanata sp. nov., Clathria (Thalysias) zeai sp. nov., Coelosphaera (Coelosphaera) lissodendoryxoides sp. nov., Craniella crustocorticata sp. nov., Diplastrella spirastrelloides sp. nov., Epipolasis tubulata sp. nov., Erylus rhabdocoronatus sp. nov., Erylus surinamensis sp. nov., Geodia pocillum sp. nov., Geodia sulcata sp. nov., Hemiasterella camelus sp. nov., Hymedesmia (Stylopus) alcoladoi sp. nov., Hymenancora cristoboi sp. nov., Penares sineastra sp. nov., Hymerhabdia kobluki sp. nov., Leucosolenia salpinx sp. nov., Petrosia (Strongylophora) devoogdae sp. nov., Placospongia ruetzleri sp. nov., Pyloderma tropicale sp. nov., Raspailia (Parasyringella) thamnopilosa sp. nov., Raspailia (Raspailia) johnhooperi sp. nov., Sphaerotylus bouryesnaultae sp. nov., Spirastrella erylicola sp. nov., Stelletta vervoorti sp. nov., Suberites crispolobatus sp. nov., Tedania (Stylotedania) folium subgen. nov. sp. nov., Timea tylasterina sp. nov., and Tylosigma ostreicola sp. nov. Two new combinations are proposed: Amphimedon nanaspiculata (Hartman, 1955) comb. nov. and Oceanapia ascidia (Schmidt, 1870) comb. nov. In addition, for two preoccupied combinations, new names, Coelosphaera (Coelosphaera) barbadensis nom. nov. and Hymedesmia (Hymedesmia) rowi nom. nov., are erected. The spatial distribution of the collected specimens over the Guyana Shelf was traced and the results were compared with existing information on bottom conditions. There was a convincing correlation between the location of fossil reefs and other hard substrates such as shell ridges with peaks in the occurrence of species diversity and specimen numbers. Stations made on sand and mud bottoms away from these zones of hard substrates were generally poor in species, but some were found to be rich in individuals of specialized soft bottom dwellers such as Tetilla pentatriaena, Tribrachium schmidtii, Fangophilina submersa, and Oceanapia species. The species composition of the Guyana Shelf was compared with that of neighbouring regions of the Caribbean and from North and East Brazil (Díaz in Miloslavich et al. 2010; Muricy et al. 2011). About 35% of the species encountered are widespread in the Central West Atlantic, occurring both to the north and to the south. Indications that the Guyana Shelf sponge fauna is clearly transitional are southernmost occurrences for Caribbean species (about 30%), and northernmost occurrences of Brazilian species (13%), with a high proportion (25%) of new species, which may be expected to have distributions extending to the Caribbean, to Brazil or both regions.          

A study in the tornoceratidae: the succession of tornoceras and related genera in the North American devonian

1965 ◽  
Vol 250 (763) ◽  
pp. 79-130 ◽  
Keyword(s):  
New York ◽  
New Species ◽  
New York State ◽  
Lateral Lobe ◽  
Evolutionary Trends ◽  
York State ◽  
The North ◽  
New Subgenus ◽  
Lower Frasnian ◽  
Shed Light

The species of Tornoceras , Parodiceras , Epitornoceras and Aulatornoceras in North America are described. The study provides an independent stratigraphical goniatite zonation, particularly for the New York State Devonian, and it also provides an analysis of allomorphis in Tornoceras . A discussion on the protoconch apparatus and the significance of the metamorphosis at the nepionic constriction in Tornoceras is given. For the Tornoceras stock descriptions are provided where possible of the ontogeny from protoconch to adult of species at eleven successive stratigraphical levels, and faunas at other levels are also described. Thus the successional ontogenies shed light on the phylogeny of the stock. Faunas at each level may be morphologically defined, but few consistently maintained evolutionary trends have been observed. Shell form seems particularly subject to independent, and probably phenotypic variation. Through the equivalents of the Middle Devonian to the lower Frasnian, protoconch width appears to increase progressively. Similarly the suture becomes more undulating, particularly with regard to the steepness of the ventrad face of the lateral lobe. Later species show reversion to early characters in these respects. The origin of Tornoceras from Parodiceras is argued, and it is considered that Tornoceras gave rise to all later members of the Tornoceratidae. A new subgenus, Linguatornoceras , is erected for Frasnian and lower Famennian tornoceratids with small lingulate lateral lobes. Seven new species and subspecies are described.

A new genus and a new species of Tropidopolinae (Orthoptera: Acrididae) from India

ENTOMON ◽  
2019 ◽  
Vol 44 (3) ◽  
pp. 191-196
Author(s):  
Mohd. Imran Khan ◽  
Mohd. Kamil Usmani
Keyword(s):  
New Species ◽  
New Genus ◽  
Species Level ◽  
Female Genitalia ◽  
Eastern Region ◽  
New Genus And Species ◽  
Male And Female ◽  
The North ◽  
North Eastern ◽  
A New Species

A new genus Neooxyrrhepes gen. n. with a new species Neooxyrrhepes meghalayensis n. from Meghalaya, a state of the North Eastern region of India. Description and illustrations of the new genus and species are given. A key to the genera of subfamily Tropidopolinae from North Eastern states of India is also provided. Additonally the characters of male and female genitalia at generic and species level are also given.

A new species of Mexicaprina (Caprinidae, Coalcomaninae) and review of the age and paleobiogeography of the genus

2002 ◽  
Vol 76 (4) ◽  
pp. 672-691 ◽  
Author(s):  
Harry F. Filkorn
Keyword(s):  
New Species ◽  
Type Species ◽  
Gulf Coast ◽  
Reef Corals ◽  
Southwestern Margin ◽  
The Caribbean ◽  
Guerrero Terrane ◽  
A New Species ◽  
Age Determinations ◽  
Occurrence Of Species

A species of the rudist bivalve genus Mexicaprina Coogan, 1973, from the mid-Cretaceous Mai Paso Formation of the Guerrero terrane, southwestern Mexico, is described as new: M. alata. At the type locality of this new species, a 6.5 m thick Mexicaprina-rich floatstone bed conformably overlies a taxonomically diverse build-up of reef corals. This type of facies relationship and implied faunal association has not been observed previously at any other site. Specimens of the type species, M. cornuta Coogan, 1973, also were found at the same locality, but 90 m stratigraphically below the lowest occurrence of M. alata. Compilation and detailed biostratigraphic analysis of the reported occurrences of Mexicaprina demonstrate that the age of the genus ranges from late Albian to early Cenomanian. However, most occurrences are late Albian and the Cenomanian age determinations are questionable and possibly late Albian also. The occurrence of species of Mexicaprina in the allochthonous Guerrero terrane, together with the relatively limited geographic distribution of the genus in the late Albian and early Cenomanian of the Gulf Coast of Mexico, Texas, and Honduras, indicates that this region of the Guerrero terrane was part of the Caribbean paleobiogeographic province during late Albian to early Cenomanian time. This occurrence also suggests that this portion of the Guerrero terrane was very close, possibly accreted, to the southwestern margin of North America by the close of the Early Cretaceous.

scholarly journals Review of the North American fauna of Drymeia Meigen (Diptera, Muscidae) and evaluation of DNA barcodes for species-level identification in the genus

ZooKeys ◽  
2021 ◽  
Vol 1024 ◽  
pp. 31-89
Author(s):  
Jade Savage ◽  
Vera S. Sorokina
Keyword(s):  
New Species ◽  
Prior Knowledge ◽  
North American ◽  
Interspecific Variation ◽  
Species Level ◽  
Dna Barcodes ◽  
The North ◽  
Species Groups ◽  
Annotated Checklist ◽  
Level Identification

The North American fauna of Drymeia Meigen was studied. Four new species are described (Drymeia huckettisp. nov., Drymeia pontisp. nov., Drymeia vockerothisp. nov., Drymeia woodorumsp. nov.), and three new synonymies are proposed: Drymeia amnicola (Huckett, 1966) (= Drymeia rivalis (Huckett, 1966), syn. nov.); Drymeia glacialis (Rondani, 1866) (= Drymeia alpicola (Rondani, 1871), syn. nov.); and Drymeia spinitarsis (Aldrich, 1918) (= Drymeia longiseta Sorokina & Pont, 2015, syn. nov.). An annotated checklist, DNA barcodes (when available), and keys for each sex of the 24 named species of North American Drymeia are provided. The utility of DNA barcodes for the identification of Drymeia species across a wide geographical range was explored using sequences from five countries. A match between morphology and DNA barcodes was found for 71% (22/31) of species studied (including three unnamed taxa). The remaining nine species clustered into two groups of taxa with very little interspecific variation within clusters (groups of two and seven species). Caution is advised against using DNA barcoding as the only determination tool for Drymeia material without prior knowledge of its limitations for certain species groups.

Revision of the genus Cyphura. Part I: Introduction of the New Subgenus Xysterophora with Two New Species from New Guinea (Lepidoptera: Uraniidae: Uraniinae)

2016 ◽  
Vol 159 (3) ◽  
pp. 143-163
Author(s):  
Siep Sinnema ◽  
Jannie Sinnema-Bloemen
Keyword(s):  
New Species ◽  
New Guinea ◽  
Species Group ◽  
Species Level ◽  
New Combinations ◽  
New Subgenus ◽  
Two New Species

A new subgenus, Xysterophora, is introduced for the albisecta species group of the genus Cyphura Warren, 1902 (Lepidoptera: Uraniidae). Two new species are described: Cyphura (Xysterophora) devosi and C.(X). femkeae. The subspecies Cyphura atramentaria extensa Rothschild, 1915 is raised to species level. New combinations are formed for the species albisecta Warren, 1907, atramentaria Warren, 1907, extensa Rothschild, 1915, semialba Warren, 1907, and urapteroides Joicey & Talbot, 1917. Lectotypes are designated for the species albisecta, atramentaria, semialba, and urapteroides. Xysterophora is restricted to New Guinea.

Systematics of the Dendrophidion nuchale complex (Serpentes: Colubridae) with the description of a new species from Central America

Zootaxa ◽  
2012 ◽  
Vol 3513 (1) ◽  
pp. 1 ◽  
Author(s):  
JOHN E. CADLE ◽  
JAY M. SAVAGE
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Central America ◽  
Species Group ◽  
Apical Region ◽  
The North ◽  
The Andes ◽  
The Caribbean ◽  
A New Species ◽  
Eastern Half

We review the systematics of the Dendrophidion nuchale complex in Central America and northern South America andrecognize three species. The names D. nuchale (W. Peters) and D. clarkii Dunn apply to two of the species. The third isdescribed as a new species, D. rufiterminorum. It differs from D. clarkii and D. nuchale in coloration and hemipenial char-acters but all three species of the nuchale complex are very similar in scutellation characters. Dendrophidion nuchale isdistributed in the coast ranges and adjacent foothills of northern Venezuela, and in a seemingly disjunct population in theSerranía de Perijá in western Venezuela. The name clarkii was recently applied to all populations of the nuchale complexfrom Belize and Guatemala in the north to western Colombia and Ecuador in the south. Herein, we restrict the name D.clarkii to populations in lower Middle America (Costa Rica and Panama) and west of the Andes in Colombia and Ecuador.Dendrophidion rufiterminorum is distributed in northern Central America (Belize, Guatemala, northern Honduras) fol-lowed by a broad disjunction without records of the species throughout most of Honduras and Nicaragua; thereafter, a fewspecimens and photographs document the presence of D. rufiterminorum on the Caribbean versant of southern Nicaraguaand Costa Rica, and uplands of northwestern Costa Rica (Pacific versant). Two localities of sympatry between D. rufiter-minorum and D. clarkii are known in Costa Rica (one on the Atlantic versant, the other on Pacific versant). Nonetheless,there is sparse documentation of either species in Costa Rica. The populations referred to D. clarkii in southwestern CostaRica, the eastern half of Panama, and western Colombia and Ecuador need further study. Hemipenes of species of thenuchale complex are described. All three species have a pair of enormously enlarged sulcate spines and a regular lineararray of enlarged spines (spinose annulus) encircling the base of the apical region. These characters are also shared with D. dendrophis sensu lato but not other members of the dendrophis species group.

A new subgenus and three new species of stingless bees (Hymenoptera: Apidae: Apinae: Meliponini) from India

ENTOMON ◽  
2019 ◽  
Vol 44 (1) ◽  
pp. 33-48
Author(s):  
S. Shanas ◽  
P. Faseeh
Keyword(s):  
New Species ◽  
Stingless Bees ◽  
Hind Wing ◽  
Indian Subcontinent ◽  
Indian Species ◽  
Peninsular India ◽  
Widespread Species ◽  
The North ◽  
New Subgenus ◽  
Three New Species

A new subgenus of stingless bees, Flavotetragonula Shanas, subgen. n. is established and three new species, Tetragonula (Flavotetragonula) calophyllae Shanas and Faseeh, n. sp., Tetragonula (Tetragonula) perlucipinnae Faseeh and Shanas, n. sp. and Tetragonula (Tetragonula) travancorica Shanas and Faseeh, n. sp. are described from southern India, based on workers. It is established that T. (Tetragonula) iridipennis (Smith, 1854) does not occur in India. The most widespread species in peninsular India is Tetragonula (Tetragonula) travancorica Shanas and Faseeh, n. sp. Keys to the subgenera of Tetragonula Moure, 1961 and species of Flavotetragonula and Tetragonula of the Indian subcontinent are provided. Additional information on the geographic range of the north Indian species T. ruficornis Smith (1870) is given. The descriptions of the species are supplemented with the characters of foreleg and hind wing.

scholarly journals CAPRELLIDS FROM THE CARIBBEAN COAST OF COLOMBIA, WITH DESCRIPTION OF THREE NEW SPECIES AND A KEY FOR SPECIES IDENTIFICATION

2016 ◽  
Vol 35 ◽  
Author(s):  
José M. Guerra García ◽  
Traudl Krapp Schickel ◽  
Hans G. Müller
Keyword(s):  
New Species ◽  
South America ◽  
Intertidal Zone ◽  
Species Level ◽  
Shallow Waters ◽  
Key To Species ◽  
Coral Rubble ◽  
Caribbean Coast ◽  
The Caribbean ◽  
Three New Species

The Caprellidae (Crustacea: Amphipoda) of shallow waters of the Caribbean coast of Colombia, South America, are investigated. This is the first study dealing with the caprellidean fauna of this area. A total of 45 stations from Punta Brava to Punta Cañaveral, at Santa Marta region, Colombia, was selected, and samples of algae, coral rubble, sponges, hydroids, bryozoans and sediments were collected from the intertidal zone to 30 m depth. Ten species in seven genera were found (three of which are new to science): Aciconula sp., Caprella cf. penantis Leach, 1814, Caprella danilevskii Czerniavskii, 1868, Deutella caribensis n.sp., D. incerta (Mayer, 1903), D. mayeri Stebbing, 1895, Hemiaegina minuta Mayer, 1890, Paracaprella pusilla Mayer, 1890, Pseudaeginella colombiensis n.sp., and Tritella chibcha n.sp. All the species are fully illustrated, and a key to species level for all species is also provided.

scholarly journals New species of New World Opilioacaridae (Acari: Parasitiformes) with the description of a new genus from the Caribbean region

Zootaxa ◽  
2009 ◽  
Vol 2061 (1) ◽  
pp. 23-44 ◽  
Author(s):  
MA. MAGDALENA VÁZQUEZ ◽  
HANS KLOMPEN
Keyword(s):  
New Species ◽  
New World ◽  
New Genus ◽  
Central American ◽  
Caribbean Region ◽  
Greater Antilles ◽  
North Central ◽  
The North ◽  
The Caribbean

Four new species and one new subspecies of Opilioacaridae are described from Mexico, Cuba, and Panama. The classification of Opilioacaridae is updated with recognition of the genus Neocarus as separate from Opilioacarus, and by recognition of a new genus, Caribeacarus, with three species from the greater Antilles and Panama. A key to the North/ Central American and Caribbean species of Opilioacaridae is provided.

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