Diversity of Indo-Australian Plakortis (Demospongiae: Plakinidae), with description of four new species

2010 ◽  
Vol 91 (2) ◽  
pp. 303-319 ◽  
Author(s):  
Guilherme Muricy
Keyword(s):  
New Species ◽  
External Morphology ◽  
Valid Species ◽  
Size Classes ◽  
Australian Species

A collection of 32 specimens of the genus Plakortis (Demospongiae: Plakinidae) from Australia and the Indo-Pacific is here examined. Six species are described, four of which are new to science. Plakortis lita has microrhabds, an irregular tangential ectosomal reticulation, a confused choanosomal skeleton and irregular diods and triods. Plakortis quasiamphiaster has quasiamphiasters (spined diods and triods), spheres and a skeleton with a distinct subectosomal region. Plakortis communis sp. nov. has diods and a tangential ectosomal reticulation with circular meshes; triods and spheres may be present or absent. Plakortis bergquistae sp. nov. has diods in two size-classes, the larger one up to 330–356 µm long, and large triods (actines up to 75–121 µm long). Plakortis fromontae sp. nov. has large diods (up to 220 µm long), rare triods and a double ectosomal reticulation. Plakortis hooperi sp. nov. has diods, triods, microrhabds and spheres, with a confused ectosomal skeleton, a thinly encrusting shape and cream colour. Detailed descriptions of external morphology, skeletal arrangement of the ectosome and spicules in SEM are essential for the taxonomy of Plakortis. The number of valid species in the genus is raised from 15 to 19. A key to Indo-Australian species of Plakortis is given.

Two new Auletta Schmidt, 1870 (Axinellidae; Demospongiae; Porifera) from Brazil

Zootaxa ◽  
2017 ◽  
Vol 4273 (1) ◽  
pp. 121
Author(s):  
THAYNÃ CAVALCANTI ◽  
RADHARANNE RECINOS ◽  
ULISSES PINHEIRO
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
The Other ◽  
External Morphology ◽  
Northeastern Brazil ◽  
Valid Species ◽  
Brazilian Coast ◽  
Tubular Shape ◽  
Cavernous Body

The genus Auletta Schmidt, 1970 comprises 14 valid species, with six known from the Atlantic Ocean. The genus was previously recorded for the Brazilian coast only in 1967 from surveys in Pernambuco State. The present paper describes two new Auletta from Northeastern Brazil. Auletta akaroa sp. nov. is from Alagoas State and it has a stalked tubular shape and small sinuous styles and strongyles. Auletta laboreli sp. nov. was found in Pernambuco State and it is a sponge with a cylindrical and cavernous body composed of styles with blunt and telescopic tips and sinuous strongyles. Both new species were compared with the other valid species of Auletta. The spicule complement and external morphology of the new species are discussed. 

Review of the batfish genus Malthopsis from Australia (Lophiiformes: Ogcocephalidae), with descriptions of five new species

2020 ◽  
Author(s):  
Hsuan-Ching Ho ◽  
Peter Last
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Ventral Surface ◽  
Species Group ◽  
Valid Species ◽  
Widespread Species ◽  
Australian Species ◽  
Taxonomic Review

A taxonomic review of the batfish genus Malthopsis in the Australian waters is provided. Eleven valid species are recognized in this study: Malthopsis gigas Ho and Shao, 2010, Malthopsis parva Ho, Roberts and Shao, 2013, Malthopsis asperata Ho, Roberts and Shao, 2013, Malthopsis lutea Alcock, 1891, Malthopsis mitrigera Gilbert and Cramer, 1897, Malthopsis provocator Whitley, 1961, and an additional five species new to science. Four of these new species, Malthopsis apis sp. nov., Malthopsis bulla sp. nov., Malthopsis oculata sp. nov., and Malthopsis tetrabulla sp. nov. belong to a species group lacking spinules on the interspaces between bucklers of the ventral surface, whereas Malthopsis mcgroutheri sp. nov. belongs to another species group characterized by having spinules on the interspaces between bucklers of the ventral surface. Four other taxa were identified during this study that may be undescribed but require further investigation. The Australian endemic species M. provocator, formerly considered to be a synonym of Malthopsis kobayashii Tanaka, 1916, is resurrected herein and two widespread species, M. asperata and M. lutea, are newly recorded from Australia. A key to all Australian species is provided.

Four new Neotropical species of Episcepsis Butler, 1877 (Lepidoptera: Erebidae: Arctiinae)

Zootaxa ◽  
2021 ◽  
Vol 5020 (2) ◽  
pp. 352-366
Author(s):  
KARLA MANTILLA ◽  
JUAN GRADOS
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
Neotropical Region ◽  
External Morphology ◽  
Valid Species ◽  
Similar Species ◽  
Genital Morphology ◽  
Neotropical Species ◽  
Species Complexes

The genus Episcepsis Butler, 1877 is widely distributed in the Neotropical region and currently includes 43 valid species many of them described solely based on external morphology. The existence of species complexes makes their identification difficult without examination of genital morphology. Four new species from Brazil, Cuba and Peru are described herein; Episcepsis andina sp. nov., E. diversa sp. nov., E. insularis sp. nov. and E. travassosi sp. nov. Comparisons with other similar species as well as photographs of external morphology and male genitalia are provided.  

A revision of the Australian species of Trimma (Actinopterygii, Gobiidae), with descriptions of six new species and redescriptions of twenty-three valid species

Zootaxa ◽  
2015 ◽  
Vol 3934 (1) ◽  
pp. 1 ◽  
Author(s):  
RICHARD WINTERBOTTOM ◽  
DOUGLASS F. HOESE
Keyword(s):  
New Species ◽  
Valid Species ◽  
Australian Species

Taxonomic and morphological revision of butterfly rays of the Gymnura micrura (Bloch & Schneider 1801) species complex, with the description of two new species (Myliobatiformes: Gymnuridae)

Zootaxa ◽  
2017 ◽  
Vol 4332 (1) ◽  
pp. 1 ◽  
Author(s):  
LEANDRO YOKOTA ◽  
MARCELO RODRIGUES DE CARVALHO
Keyword(s):  
New Species ◽  
Lateral Line ◽  
The Other ◽  
External Morphology ◽  
Valid Species ◽  
Lateral Line System ◽  
Western Atlantic ◽  
Line System ◽  
Lower Lip ◽  
Two New Species

An extensive taxonomic revision of Gymnura micrura based on external and internal morphology, and considering specimens from its entire geographical distribution in the Atlantic Ocean, is presented. Gymnura micrura is redescribed and a neotype is designated; its distributional range is limited to the Southwestern Atlantic. Two new species of butterfly rays are described: Gymnura lessae, sp. nov., occurring in the North and Central Western Atlantic, and Gymnura sereti, sp. nov., found in the Eastern Central Atlantic. The three species are morphologically very similar (with G. micrura most similar to G. lessae, sp. nov.) and cannot be distinguished based on the primary diagnostic characters typically utilized for butterfly rays. The dorsal color, smaller size and eventual presence of a dorsal fin in some males may be helpful to distinguish G. micrura, whereas the size and morphology of the clasper are the main external characters separating G. sereti, sp. nov., from the other two species, although the shape of disc (especially among adult males) and contour of the lower lip are also helpful. Despite the skeleton being conservative among the species, we found consistent variations that support the validity of the new species described. Due to similarity in external morphology these internal characters were fundamental to discriminate the new species. The scapulocoracoid was an important diagnostic skeletal structure, exhibiting a series of variations that separated the three species. Variations in the synarcual, outline of the dorsal cranial fontanelle, number and shape of mesopterygia, and small differences in the mandibular arches and pelvic girdle were useful to diagnose G. sereti, sp. nov. The contour of the hyomandibula was an important diagnostic character distinguishing G. lessae, sp. nov., from the other two species. Meristic data were also useful, with G. sereti, sp. nov., presenting a lower number of radials in the second element of the mesopterygium and a higher number of diplospondylous vertebrae. In contrast, G. lessae, sp. nov., presented a higher number of pectoral-fin radials. Subtle, but consistent differences, were also found in the design of the ventral lateral-line system. A Canonical Discriminant Analysis provides strong statistical support for the validity of the new species, significantly distinguishing the three species groupings (p < 0.00001). External morphology, ventral lateral-line system and skeleton are described and illustrated for all three valid species. 

Taxonomic revision of the New World genus Chlorotabanus Lutz, 1913 (Diptera: Tabanidae)

Zootaxa ◽  
2010 ◽  
Vol 2656 (1) ◽  
pp. 1 ◽  
Author(s):  
TIAGO KÜTTER KROLOW ◽  
AUGUSTO LOUREIRO HENRIQUES
Keyword(s):  
New Species ◽  
International Institutions ◽  
New World ◽  
Taxonomic Revision ◽  
External Morphology ◽  
Type Material ◽  
Valid Species ◽  
Dichotomous Key ◽  
Three New Species ◽  
New Synonymy

The genus Chlorotabanus Lutz is revised herein based on examination of external morphology of type material and specimens from Brazilian and international institutions (total of 2,134 specimens, 201 males and 1,933 females). Eight currently valid species are recognized: C. crepuscularis (Bequaert, 1926); C. fairchildi Wilkerson, 1979; C. flagellatus Krolow & Henriques, 2009; C. inanis (Fabricius, 1787); C. leucochlorus Fairchild, 1961; C. mexicanus (Linnaeus, 1758); C. ochreus Philip & Fairchild, 1956; C. parviceps (Kröber, 1934). Three new species are described: C. falsiflagellatus n. sp. (Brazil, Amazonas), C. leuconotus n. sp. (Amazon region) and C. microceratus n. sp. (Brasil, Maranhão). Tabanus tetrapunctus Thunberg, 1827, previously synonymous with C. mexicanus, here is synonymous with C. crepuscularis (new synonymy). We provide diagnosis, descriptions, redescriptions, distribution records, illustrations and discussion for all species, as well as a dichotomous key for identification of females.

On the taxonomic status of three enigmatic Indochinese frog species (Amphibia: Anura) described by L. G. Andersson

Zootaxa ◽  
2020 ◽  
Vol 4834 (4) ◽  
pp. 502-522
Author(s):  
NIKOLAY A. POYARKOV ◽  
EVGENIYA N. SOLOVYEVA ◽  
TAN VAN NGUYEN ◽  
PETER GEISSLER
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
20Th Century ◽  
Taxonomic Status ◽  
Junior Synonym ◽  
External Morphology ◽  
Valid Species ◽  
Type Specimens ◽  
Frog Species ◽  
Mainland Southeast Asia

In the first half of the 20th century, four Swedish expeditions to Indochina contributed significantly to the knowledge on the herpetofauna of mainland Southeast Asia. The collected material was examined by L. G. Andersson in Stockholm, resulting in the description of seven new species and forms of amphibians and reptiles from Vietnam and Thailand. However, the taxonomic status of three enigmatic frog species described by Andersson, namely Rana scutigera, Oxyglossus laevis var. vittata, and Microhyla fusca, remained doubtful. All three taxa are only known from their type specimens and their short original descriptions. Though subsequent studies have doubted their validity or systematic assignment, they have been treated as valid species until today. We have examined the external morphology and coloration of the type specimens, what led to a taxonomic reallocation of these three species. We demonstrate that Rana scutigera Andersson, 1916 is a junior synonym of Polypedates megacephalus Hallowell, 1861, Oxyglossus laevis var. vittata Andersson, 1942 is synonymized with Occidozyga martensii (Peters, 1967), and Microhyla fusca Andersson, 1942 represents a junior synonym of Microhyla butleri Boulenger, 1900. 

Revision of the genus Isopedella (Araneae : Heteropodidae)

1993 ◽  
Vol 7 (1) ◽  
pp. 33 ◽  
Author(s):  
DB Hirst
Keyword(s):  
New Species ◽  
Type Species ◽  
New Guinea ◽  
Valid Species ◽  
Australian Species ◽  
Species Groups

The genus Isopedella Hirst is redefined and the valid species, I. cana (Simon), I. cerussata (Simon), I. conspersa (Koch), I. flavida (Koch), I. frenchi (Hogg), I. inola (Strand), I. leai (Hogg), I. meraukensis (Chrysanthus) and I. saundersi (Hogg), are revised. I. pessleri (Thorell), the type species, is diagnosed and the genus is redefined. I. terangana (Strand) from New Guinea is discussed. I. ardrossana (Hogg), I. tepperi (Hogg) and I. tietzi (Hogg) are synonyms of I. leai. Zsopeda maculigaster (Strand) is a synonym of I. conspersa. Seven new species are described as I. ambathala, I. castanea, I. cerina, I. gibsandi, I. maculosa, I. tindalei and I. victorialis. Three species-groups are recognised. A key is provided for Australian species.

scholarly journals Understanding morphological variability in a taxonomic context in Chilean diplomystids (Teleostei: Siluriformes), including the description of a new species

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e2991 ◽  
Author(s):  
Gloria Arratia ◽  
Claudio Quezada-Romegialli
Keyword(s):  
New Species ◽  
Current Knowledge ◽  
Morphological Variability ◽  
Morphological Characters ◽  
External Morphology ◽  
Valid Species ◽  
Body Proportions ◽  
Chilean Patagonia ◽  
A New Species ◽  
Osteological Characters

Following study of the external morphology and its unmatched variability throughout ontogeny and a re-examination of selected morphological characters based on many specimens of diplomystids from Central and South Chile, we revised and emended previous specific diagnoses and considerDiplomystes chilensis,D. nahuelbutaensis,D. camposensis, andOlivaichthys viedmensis(Baker River) to be valid species. Another group, previously identified asDiplomystessp.,D. spec.,D. aff.chilensis, andD. cf.chilensisinhabiting rivers between Rapel and Itata Basins is given a new specific name (Diplomystes incognitus) and is diagnosed. An identification key to the Chilean species, including the new species, is presented. All specific diagnoses are based on external morphological characters, such as aspects of the skin, neuromast lines, and main lateral line, and position of the anus and urogenital pore, as well as certain osteological characters to facilitate the identification of these species that previously was based on many internal characters. Diplomystids below 150 mm standard length (SL) share a similar external morphology and body proportions that make identification difficult; however, specimens over 150 mm SL can be diagnosed by the position of the urogenital pore and anus, and a combination of external and internal morphological characters. According to current knowledge, diplomystid species have an allopatric distribution with each species apparently endemic to particular basins in continental Chile and one species (O. viedmensis) known only from one river in the Chilean Patagonia, but distributed extensively in southern Argentina.

Non-marine harpacticoid copepods of Australia. I. Canthocampptidae of the genus Canthocamptus Westwood s.lat. and Fibulacamptus, gen. nov., and including the description of a related new species of Canthocamptus from New Caledonia

1987 ◽  
Vol 1 (8) ◽  
pp. 1023 ◽  
Author(s):  
R Hamond
Keyword(s):  
New Species ◽  
New Caledonia ◽  
External Morphology ◽  
Single Male ◽  
Australian Species ◽  
Terminal Seta ◽  
Harpacticoid Copepods

The external morphology of Canthocamptus s.lat. and Fibulacamptus, gen. nov. has been resurveyed and a number of new terms and abbreviations introduced. Separate keys are given to the females and males of these genera and of all their 28 Australian species, as well as a table of their setal formulae and maps of their respective distributions; 21 of the 28 species are new. The genus Canthocamptus, when defined as in section 6 for reasons given in section 3, contains 24 species which can be placed in six fairly well-defined groups; however, the previous descriptions of Australian Canthocamptus species are so lacking in detail that two of them must be regarded as completely unidentifiable. C. bidens (which is probably parthenogenetic anyway), C. longipes and C. sublaevis are known so far only as females and Canthocamptus sp. 1 from only a single male, each of the others described here being from both sexes. C. ablatifurcatus, sp. nov. from New Caledonia is described in Appendix 4; but other existing descriptions of non-Australian species are not sufficiently detailed to refer any of them to one or other of the six groups, to equate any of these groups to a named genus or subgenus of the Canthocamptidae, or to offer any basis for the much-needed revision of this family. Fibulacarnptus differs from all other harpacticoids in the grapnel-like outer terminal seta on the male P4exopod3, but is otherwise close to Canthocamptus as defined here; it contains four species, all new.

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