ON TWO NEW SPECIES OF PLATYCERUS

1895 ◽  
Vol 27 (6) ◽  
pp. 153-155 ◽  
Author(s):  
Thos. L. Casey
Keyword(s):  
New Species ◽  
Sexual Differences ◽  
The Other ◽  
The Third ◽  
Number Of Species ◽  
Single Sex ◽  
Two New Species

I am scarcely warranted in attempting a detailed table of this genus, because a number of species are known to me only by a single sex; but in looking over the material, it can be readily perceived that there are two sections, the first represented by quercus, oregonensis and depressus, being characterized by great sexual differences in the mandibles, and the second, represented by all the other species, having the mandibles unmodified in the male. The second section may be divided into three groups: the first, represented by Agassii, pacificus and parvicollis, which, judging by analogy, have the hind tarsi long and slender in both sexes; the second, composed of californicus and thoracicus, having the hind tarsi short, at least in the female; and the third, with stout and triangular tibiæ, at present represented by Keeni alone.

scholarly journals Two new species of Colletteidae (Crustacea: Tanaidacea: Tanaidomorpha) from Bransfield Strait, Antarctica

2017 ◽  
Author(s):  
Juliana L. Segadilha ◽  
Kátia C. Dos Santos ◽  
Cristiana S. Serejo
Keyword(s):  
New Species ◽  
The Other ◽  
Bransfield Strait ◽  
Number Of Species ◽  
Two New Species ◽  
Lateral Margins

Samples from deep benthic areas in the Bransfield Strait, Antarctica, revealed the presence of two new species of Colletteidae: Filitanais elongatus sp. nov. and Macrinella lavradoae sp. nov. Filitanais elongatus sp. nov. resembles F. moskalevi in its habitus; it can, however, be distinguished by characters such as the pleonites and pleotelson with lateral margins parallel and the uropod exopod being longer than half of the first endopod article. Macrinella lavradoae sp. nov. differs from the other species of Macrinella in the shape of the uropod and the pleotelson, with the uropod exopod shorter than the first article of the endopod, the uropod about as long as the pleotelson and the pleotelson with a rounded tip. The number of species of Tanaidacea recorded from Antarctica increases to 162, while the colletteids are now represented by 16 species. Moreover, the diagnosis of the genus Filitanais is herein modified.

Two new species of Okenia (Gastropoda: Nudibranchia: Goniodorididae) from eastern Australia and Tanzania

Zootaxa ◽  
2007 ◽  
Vol 1657 (1) ◽  
pp. 57-67 ◽  
Author(s):  
WILLIAM B. RUDMAN
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Red Sea ◽  
Body Shape ◽  
Western Indian Ocean ◽  
The Other ◽  
The Third ◽  
Australian Species ◽  
Eastern Australia ◽  
Two New Species

Two new species of the nudibranch genus Okenia Menke, 1830 (Goniodorididae) are described, one from eastern Australian waters and one from the western Indian Ocean. Okenia atkinsonorum sp. nov. is the third Australian species reported to feed on the bryozoan Pleurotoichus clathratus (Harmer, 1902) and is very similar in external shape and colour to the other two species, O. hallucigenia Rudman, 2004 and O. stellata Rudman, 2004. Okenia rhinorma sp. nov. is reported from Tanzania and the Red Sea. Its body shape and anatomy suggest it is related to the ascidian-feeding group in the genus characterised by O. aspersa (Alder & Hancock, 1845).

scholarly journals The discovery of Barretonus (Curculionidae: Cossoninae) in the Canary Islands: barcoding, morphology and description of new species

2019 ◽  
Vol 59 (2) ◽  
pp. 443-452 ◽  
Author(s):  
Rafael García ◽  
Carmelo Andújar ◽  
Pedro Oromí ◽  
Brent Emerson ◽  
Heriberto López
Keyword(s):  
New Species ◽  
Canary Islands ◽  
Phylogenetic Relationships ◽  
The Other ◽  
Molecular Evidence ◽  
Number Of Species ◽  
La Palma ◽  
Two New Species

Abstract The genus Barretonus Roudier, 1958 is a genus endemic to Macaronesia, described from the archipelago of Madeira where four species are known to date. In this study, two new species of Barretonus, B. auarita García & Oromí sp. nov. (from La Palma, Canary Islands) and B. daute García & Andújar sp. nov. (from Tenerife, Canary Islands), are described based on morphological and molecular evidence (mtCOI), and additional notes on their biology and ecology are provided. Morphology of the new species is compared with the other representatives of the genus, and their phylogenetic relationships with a Barretonus representative from Madeira and species from additional genera within the Cossoninae are shown. This work increases the number of species of the genus Barretonus from four to six anophthalmous or microphthalmous species with an endogean lifestyle, and incorporates the Canary Islands into its Macaronesian range of distribution.

Five new species of Axiidae (Crustacea: Decapoda: Axiidea) from deep-water off Taiwan, with description of a new genus

Zootaxa ◽  
2010 ◽  
Vol 2352 (1) ◽  
pp. 1 ◽  
Author(s):  
TOMOYUKI KOMAI ◽  
FENG-JIAU LIN ◽  
TIN-YAM CHAN
Keyword(s):  
New Species ◽  
Deep Water ◽  
New Genus ◽  
The Other ◽  
The Third ◽  
Number Of Species ◽  
Deep Waters

One new genus and five new species of axiid burrowing shrimps are described from deep-waters around Taiwan: Formosaxius dorsum n. gen., n. sp.; Ambiaxius propinquus n. sp., Calastacus formosus n. sp.; Eiconaxius rubrirostris n. sp. and E. kensleyi n. sp. The new genus, Formosaxius, appears closest to Bouvieraxius Sakai & de Saint Laurent, 1989 in the arrangement and armature of the gastric carinae on the carapace and the possession of pleurobranchs, but the presence of appendices internae on the third to fifth pleopods readily separates the new genus from Bouvieraxius. Affinities of the other four new species are also discussed. This study raises the number of species of Axiidae known from Taiwan to 13.

Aplidium (Ascidiacea, Polyclinidae) in central coast, Brazil

Zootaxa ◽  
2012 ◽  
Vol 3565 (1) ◽  
pp. 18
Author(s):  
ROSANA MOREIRA DA ROCHA ◽  
GUSTAVO ANTUNES GAMBA ◽  
THAIS BASTOS ZANATA
Keyword(s):  
New Species ◽  
Coastal Waters ◽  
Scuba Diving ◽  
First Record ◽  
The Other ◽  
Artificial Substrates ◽  
Brazilian Coast ◽  
Central Coast ◽  
Number Of Species ◽  
Two New Species

The genus Aplidium comprises a large number of species, seldom reported from Brazil. Here we describe some species inthis genus, collected between 1999 and 2012, in coastal waters of the states of Bahia and Espírito Santo, in eastern centralBrazil. Natural and artificial substrates were sampled by scuba diving at 5 to 23 m depths. Four species comprise the 16samples. We propose synonymy of the species A. lobatum Savigny, 1816 and A. quinquesulcatum Millar, 1977, both pre-viously known from Brazil. The other species are A. antillense (first record for the Brazilian coast), and two new species, A. elongatum n. sp. and A. selenium n. sp.

Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia

Zootaxa ◽  
2007 ◽  
Vol 1434 (1) ◽  
pp. 51 ◽  
Author(s):  
ANNA MURRAY ◽  
GREG W. ROUSE
Keyword(s):  
New Species ◽  
The Other ◽  
Barrier Reef ◽  
Lizard Island ◽  
Eastern Australia ◽  
Two New Species ◽  
Coral Rock

Two new species of Terebrasabella Fitzhugh & Rouse, 1999 are described from eastern Australia. Terebrasabella hutchingsae sp. nov., was found from preserved coral rock debris collected in 1977 on the outer Barrier Reef near Lizard Island, Queensland. Terebrasabella fitzhughi sp. nov., was found alive in burrows in and among spirorbin serpulid tubes on intertidal rocks in Tasmania in 1996. Both species were found in mucoid tubes, and brood their young in a manner similar to the only other described species of Terebrasabella, T. heterouncinata Fitzhugh & Rouse, 1999. Terebrasabella hutchingsae sp. nov., is exceptional as it possesses a type of thoracic neurochaetal uncinus different from the other two species, and which is similar to the notochaetal acicular “palmate hook” seen in Caobangia. Descriptions of both species are given, and the diagnosis for Terebrasabella is emended. Larval and chaetal morphology and relationships among of the three known Terebrasabella spp. are discussed.

TWO NEW SPECIES OF ORTHEZIA

1898 ◽  
Vol 30 (1) ◽  
pp. 12-14 ◽  
Author(s):  
J. D. Tinsley
Keyword(s):  
New Species ◽  
The Other ◽  
Lateral Margin ◽  
Two New Species ◽  
Marginal Plates ◽  
Lateral Plates

Orthezia cheilanthi, n. sp.—Adult ♀ Length, 3.5 mm. Width, 3-3.5 mm. Length + ovisac, 6-8 mm. Width of Ovisac 3-4 mm. Body above covered with whtie secretion, which forms lateral and sub. dorsal longitudinal keels. A well-defined subdorsal furrow between the keels and the lateral margin formed by 3 or more rows of paltes; these are smaller than the projecting marginal plates, which are flattened; caudal plate and the 3 or 4 plates on each side of it very little longer than the lateral plates. The structure of the secretion is compact; in most of the other species of Orthezia it is fluffy.

Two new species ofSyllis(Polychaeta: Syllidae) from South Africa, one of them viviparous, with remarks on larval development and vivipary

2014 ◽  
Vol 94 (4) ◽  
pp. 729-746 ◽  
Author(s):  
Carol Simon ◽  
Guillermo San Martín ◽  
Georgina Robinson
Keyword(s):  
South Africa ◽  
New Species ◽  
South African ◽  
The Other ◽  
Coralline Algae ◽  
Colour Pattern ◽  
The Family ◽  
Two New Species ◽  
Haliotis Midae ◽  
Characteristic Colour

Two new species of South African Syllidae of the genusSyllisLamarck, 1818 are described.Syllis unzimasp. nov. is characterized by having unidentate compound chaetae with long spines on margin, a characteristic colour pattern and its reproduction by vivipary. Vivipary is not common among the polychaetes, but most representatives occur in the family Syllidae Grube, 1850 (in five otherSyllisspecies, two species ofDentatisyllisPerkins, 1981 and two species ofParexogoneMesnil & Caullery, 1818).Syllis unzimasp. nov. differs from the other viviparous species in having large broods (>44 juveniles) which develop synchronously. Development of the juveniles is similar to that of free-spawningSyllisspecies, but the appearance of the first pair of eyespots and the differentiation of the pharynx and proventricle occur later inS. unzima.Syllis amicarmillarissp. nov., is characterized by having an elongated body with relatively short, fusiform dorsal cirri and the presence of one or two pseudosimple chaeta on midbody parapodia by loss of blade and enlargement of shaft.Syllis unzimasp. nov. was found in high densities on culturedHolothuria scabraJaeger, 1833 with single specimens found on a culturedCrassostrea gigasThunberg, 1793 and on coralline algae, respectively, whileS. amicarmillariswas found mainly in sediment outside an abalone farm and less frequently on culturedHaliotis midaeLinnaeus, 1758. We discuss the possible benefits of the association withH. scabratoS. unzimasp. nov.

A new species of the enigmatic genus Oressinoma Doubleday from the Andes of central Peru (Lepidoptera: Nymphalidae, Satyrinae)

Zootaxa ◽  
2021 ◽  
Vol 4999 (2) ◽  
Author(s):  
KLAUDIA FLORCZYK ◽  
CHRISTER FÅHRAEUS ◽  
PIERRE BOYER ◽  
ANNA ZUBEK ◽  
TOMASZ W. PYRCZ
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
Preliminary Analysis ◽  
The Other ◽  
Genital Morphology ◽  
The Third ◽  
The Andes ◽  
A New Species

A new, and only the third known species of the Neotropical montane genus Oressinoma Doubleday is described—O. sorina n. sp., from the Andes of central Peru. It is distinguishable immediately from the other two congeners by the shape of the hindwing underside submarginal orange band, and by the male genitalia. The systematics of Oressinoma are reviewed. A preliminary analysis is carried out based on COI barcode confirming the separate specific status of O. sorina n. sp. in relation to other two congeners. Both barcode and genital morphology data suggest that the widespread O. typhla Doubleday may be a complex of allopatric or, locally parapatric species. The genus Oressinoma is the only neotropical member of the predominantly Australian subtribe Coenonymphina, represented in the entire Holarctic by one genus only—Coenonympha Hübner, considered as the putative sister-genus of Oressinoma. Their origins and relationships are briefly discussed.

Two new species of Ocyochterus (Heteroptera: Ochteridae) from Ecuador and Panama

Zootaxa ◽  
2021 ◽  
Vol 4958 (1) ◽  
pp. 34-44
Author(s):  
DAN A. POLHEMUS
Keyword(s):  
New Species ◽  
The Other ◽  
Distribution Map ◽  
Two New Species

Two new species of Ocyochterus are described, O. graziae from Ecuador, and O. gilloglyi from Panama, and compared to the other two Andean species previously known in the genus. Dorsal habitus and anterior head photos are provided for all described species of Ocyochterus, and photomicrographs are provided for the male genitalic structures of O. graziae and O. gilloglyi. A distribution map is provided for all species in the genus. 

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