Redescription of Apobaetis lakota McCafferty, 2000 (Ephemeroptera: Baetidae) and description of two new species from Brazil

Zootaxa ◽  
2020 ◽  
Vol 4885 (2) ◽  
pp. 249-258
Author(s):  
PAULO VILELA CRUZ ◽  
RAFAEL BOLDRINI ◽  
NEUSA HAMADA
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Original Description ◽  
Maxillary Palp ◽  
Distal Margin ◽  
Medial Lobe ◽  
Similar Morphology ◽  
Tarsal Claw ◽  
Two New Species ◽  
Shifting Sand

The genus Apobaetis Day is known by its small size and larval shifting-sand habitat preference (psammophilous). Three species of this genus are recorded in North America, from these, only Apobaetis lakota McCafferty needs to be redescribed because its original description is incomplete, turning difficult to distinguish it from species with similar morphology. Therefore, one of the objectives of this study is to redescribe A. lakota. Based on this redescription, two new species from Brazil, with similar morphology could be identified and are described (Apobaetis biancae sp. nov. and Apobaetis jacobusi sp. nov.). Apobaetis lakota can be differentiated by the labrum rectangular, distal margin without medial emargination, medial area of distal margin with three sockets of setae on dorsal surface; maxillary palp long, more than 2.0× the length of galea-lacinia, segment I with the same length as galea-lacinia; lingua subcircular with one medial lobe; glossa distally rounded; inner projection of labial palp segment II rounded and distally directed, segment III triangular; tarsal claws 1.3× the length of tarsus, without row of denticles. Apobaetis jacobusi sp. nov. can be differentiated from other species by fore tarsal claw I with the same length of tarsus, labrum medially with two protuberances and glossa with pointed apex. Apobaetis biancae sp. nov. can be differentiated by the absence of a ventral row of long thin setae near distolateral margin of labrum, four marginal spines on the paraproct, a subrectangular hypopharynx, and by the absence of robust setae on inner margin of the glossa. 

New species of Rivudiva Lugo-Ortiz & McCafferty (Ephemeroptera: Baetidae) with comments on R. minantenna Lugo-Ortiz & McCafferty and R. trichobasis Lugo-Ortiz & McCafferty

Zootaxa ◽  
2020 ◽  
Vol 4786 (1) ◽  
pp. 37-52
Author(s):  
F.F. SALLES ◽  
C. NIETO ◽  
P.V. CRUZ
Keyword(s):  
New Species ◽  
Maxillary Palp ◽  
Distal Margin ◽  
Espírito Santo ◽  
Two New Species ◽  
Northern Brazil ◽  
Espirito Santo

Based on nymphs collected in Espírito Santo and Amazonas, Southeastern and Northern Brazil, two new species of the genus Rivudiva Lugo-Ortiz & McCafferty, 1998 (Ephemeroptera: Baetidae) are described. Rivudiva inma sp. nov. shares several characteristics with R. minantenna Lugo-Ortiz & McCafferty, 1998, but can be distinguished by details of leg setation, such as length and shape of robust setae and presence of setae on trochanter. Rivudiva oonirikoperi sp. nov. is more similar to R. trichobasis Lugo-Ortiz & McCafferty, 1998, but can be separated by the absence of setae on scape and pedicel, shape of distal margin of labrum, and length of maxillary palp. New diagnoses and illustrations are provided for R. minantenna and R. trichobasis, as well as a key to the known nymphs of Rivudiva species. 

Two new species of cirolanid isopods (Crustacea: Isopoda: Cirolanidae) from Qeshm and Kish Islands in the Persian Gulf

Zootaxa ◽  
2011 ◽  
Vol 2930 (1) ◽  
pp. 33 ◽  
Author(s):  
VALIALLAH KHALAJI-PIRBALOUTY ◽  
JOHANN-WOLFGANG WÄGELE
Keyword(s):  
New Species ◽  
Persian Gulf ◽  
Dorsal Surface ◽  
Distal Margin ◽  
Qeshm Island ◽  
Rounded Apex ◽  
Appendix Masculina ◽  
Two New Species ◽  
Lateral Margins ◽  
The Persian Gulf

Two new species of cirolanid isopods, Baharilana kiabii sp. nov. from the western coasts of Qeshm Island and Cirolana tarahomii sp. nov. from the northern cost of Kish Island and the western coasts of Qeshm Island in the Persian Gulf are described. Baharilana kiabii sp. nov. is characterized by pleonite 5 with a median projection and a pleotelson with two longitudinal, parallel ridges and small tubercles on the dorsal surface. Cirolana tarahomii sp. nov. is distinguished by a lateral margins of the frontal lamina converging slightly towards the base, the distal margin is extended with a narrowly rounded apex; appendix masculina distally acute with bifid apex, pleotelson with a broadly rounded apex and 8 marginal robust setae, uropodal rami not deeply bifid.

Two new species of Sabellariidae (Annelida, Polychaeta) from the abyss of eastern Australia

Zootaxa ◽  
2020 ◽  
Vol 4821 (3) ◽  
pp. 487-510
Author(s):  
JINGHUAI ZHANG ◽  
PAT HUTCHINGS ◽  
INGO BURGHARDT ◽  
ELENA KUPRIYANOVA
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Benthic Communities ◽  
First Record ◽  
Thoracic Segment ◽  
Distal Margin ◽  
Planktonic Larva ◽  
Eastern Australia ◽  
Two New Species ◽  
Buccal Flap

In May–June 2017 an expedition on board RV ‘Investigator’ sampled benthic communities along the lower slope and abyss of eastern Australia from off Tasmania to the Coral Sea. Over 200 sabellariid specimens of the genera Phalacrostemma and Gesaia were collected during the voyage and deposited in the Australian Museum. Here we describe two new species Gesaia csiro n. sp. (4414–4436 m) and Phalacrostemma timoharai n. sp. (1013–1093 m). We did not formally describe another species of Phalacrostemma due to poor condition of the single specimen. Gesaia csiro n. sp. is the first record of the genus from Australian waters (only a planktonic larva attributed to the genus has previously been recorded), and it can be distinguished from other congeners by the smooth surface of inner paleae, distal thecae of outer paleae with long, irregular and expanded distal fringe and circled distal margin. Phalacrostemma timoharai n. sp. differs from congeners by the following combination of characters: presence of the buccal flap, absence of tentacular filament, 18–22 pairs of outer paleae, two pairs of neuropodial cirri on first thoracic segment, and only one pair of lateral lobes on second thoracic segment. Morphological descriptions are accompanied by mitochondrial cytochrome c oxidase subunit 1 (COI) and ribosomal (16S, 18S and 28S) sequence data. A key to all Australian species of sabellariids is given.

scholarly journals Description of two new species of Avicularia Lamarck 1818 and redescription of Avicularia diversipes (C. L. Koch 1842) (Araneae, Theraphosidae, Aviculariinae)—three possibly threatened Brazilian species

Zootaxa ◽  
2009 ◽  
Vol 2223 (1) ◽  
pp. 25-47 ◽  
Author(s):  
ROGÉRIO BERTANI ◽  
CAROLINE SAYURI FUKUSHIMA
Keyword(s):  
New Species ◽  
Protected Areas ◽  
Conservation Status ◽  
Original Description ◽  
Color Pattern ◽  
Habitat Destruction ◽  
Southern State ◽  
Two New Species ◽  
Specimen Identification ◽  
Brazilian Atlantic Rainforest

Avicularia diversipes (C. L. Koch 1842) known previously only from its original description is redescribed along with Avicularia sooretama sp. nov. and Avicularia gamba sp. nov. The three species are endemic to Brazilian Atlantic rainforest. With other Avicularia species, they share a procurved anterior eye row, slender embolus and medially folded spermathecae, whereas they have unusual characters, such as a very long and spiraled embolus (A. diversipes) and spermathecae with multilobular apex (A. sooretama sp. nov.). Furthermore, the three species lack a tibial apophysis in males and share a distinctive color pattern ontogeny that is not known in any other Avicularia species. The conservation status of the three species is discussed, especially with respect to endemism, illegal trafficking and habitat destruction. The creation of protected areas in southern State of Bahia, Brazil, is recommended, as well as the inclusion of these species in IUCN and CITES lists. Appendices with figures and species information are presented to facilitate correct specimen identification by custom officers, in order to limit illegal traffic.

scholarly journals REVISION OF THE INDO-PACIFIC SPHENOCARCINUS WITH A SINGLE ROSTRUM AND DESCRIPTION OF TWO NEW SPECIES (CRUSTACEA, DECAPODA, BRACHYURA, MAJIDAE)

2018 ◽  
Vol 24 ◽  
pp. 49-71
Author(s):  
D. Guinot ◽  
B. Richer De Forges
Keyword(s):  
New Species ◽  
Original Description ◽  
Intermediate Species ◽  
Male Specimen ◽  
Unusual Form ◽  
Two New Species

Two species of the genus Sphenocarcinus A. Milne Edwards 1876, with a single rostrum exist in the Indo-Pacific and they are principally only known by their original description: S. cuneus (Wood-Mason 1891) and S. aurorae Alcock 1899. Each species is herewith redescribed, based on the examination of the types. Two new species are established. S. difficilis sp. nov., represented by numerous specimens from Madagascar (ORSTOM collection), proved to be an intermediate species between S. cuneus and S. aurorae. S. pinocchio sp. nov., (collected in the Makassar Strait, Indonesia (mission Corindon II), is characterized by its very Jong and strongly curved rostrum. One male specimen, also collected in the Makassar Strait, probably modified by a sacculinid parasite, and with a more curved, snub rostrum, can be regarded as an unusual form of S. pinocchio sp. nov. A key of the four Indo-Pacific Sphenocarcinus with a single rostrum is presented.

Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean

Zootaxa ◽  
2009 ◽  
Vol 2277 (1) ◽  
pp. 33-52
Author(s):  
MARINA V. MALYUTINA ◽  
ANGELIKA BRANDT
Keyword(s):  
New Species ◽  
Southern Ocean ◽  
Weddell Sea ◽  
Distal Margin ◽  
Atlantic Sector ◽  
Medial Lobe ◽  
Southeastern Pacific ◽  
Three New Species ◽  
Article 5 ◽  
Northeastern Atlantic

Three new species of the genus Belonectes Wilson & Hessler, 1981, from the munnopsid subfamily Eurycopinae Hansen are described from the deep Weddell Sea, Atlantic sector of the Southern Ocean. Belonectes grasslei sp. nov., B. stoddarti sp. nov., and B. daytoni sp. nov. are the first species of the genus described from the region: previously only two species of Belonectes were known from the northeastern Atlantic and the Peru-Chile Trench, the southeastern Pacific. The modified diagnosis of the genus Belonectes and a key to the species of the genus are presented. The pattern of the total ventral sculpture of the natasome, a medial lobe of article 4 of the maxillipedal palp which is larger than article 5 and the navicular male pleopod 1 with its deep keel are suggested to be additional important generic characters of Belonectes. The most useful characters to distinguish species of Belonectes are the size of article 1 of the antennula, the shape and size of the articles 3–5 of the maxillipedal palp, the shape of the distal margin of the male pleopod 1, the shape of distolateral part of the protopod of the male pleopod 2, the size and shape of the preanal ridge, and the size of the exopod of the uropod.

Hydaticus aequalis sp. n. and a new record of H. devexus Trémouilles, 1996 from Brazil (Coleoptera, Dytiscidae, Hydaticini)

Zootaxa ◽  
2020 ◽  
Vol 4820 (2) ◽  
pp. 379-384
Author(s):  
CESAR J. BENETTI ◽  
GREY T. GUSTAFSON ◽  
NEUSA HAMADA ◽  
ANDREW EDWARD Z. SHORT
Keyword(s):  
New Species ◽  
New Record ◽  
Dorsal Surface ◽  
Northeastern Brazil ◽  
Amazon Forest ◽  
Single Specimen ◽  
Distribution Map ◽  
Small Stream ◽  
Medial Lobe ◽  
Neotropical Species

Hydaticus aequalis sp. n. is described from Brazil, where it was recently discovered in the central lowlands region of the Amazon forest. The new species differs from all other Neotropical congeners by its uniformly brown dorsal surface and the shape of medial lobe. The dorsal habitus and male genitalia are illustrated, and a distribution map is provided. The habitat, a small stream and associated forest pool, is illustrated and described. In addition, a new record of H. devexus Trémouilles, 1996, previously known from a single specimen, is reported from the highlands of northeastern Brazil, and a modified key to Neotropical species of the genus is provided.

The genus Pseudopaguristes McLaughlin (Crustacea: Decapoda: Anomura: Diogenidae) from the southwestern Pacific, with the descriptions of two new species

Zootaxa ◽  
2008 ◽  
Vol 1840 (1) ◽  
pp. 54
Author(s):  
DWI LISTYO RAHAYU
Keyword(s):  
New Species ◽  
Distal Margin ◽  
Two New Species ◽  
Pacific Species

Two new species of Pseudopaguristes, P. mclaughlinae and P. pachydactylus are described from the southwestern Pacific. Both species have tuberculate spines that cover the mesial faces of the dactyls of the chelipeds, a character shared with P. hians (Henderson, 1888) and P. asper Rahayu, 2005. Pseudopaguristes mclaughlinae n. sp. differs from the two previously mentioned species in having the long and slender pereopods and a tergal thickening of the left second to fourth pleonal somites accompanied by row of long, moderately dense, plumose setae in females. Pseudopaguristes pachydactylus n. sp. is characterized by the short dactyls of the triangularly-shaped chelipeds and the absence of a row of hooked spines on the distal margin of inferior lamella of the male first pleopod. Two other species also found in the region are P. monoporus (Morgan, 1987) and P. laurentae (Morgan & Forest, 1991). A key to the known Indo-Pacific species of the genus Pseudopaguristes is provided.

Heterochrony in Haplomesus (Crustacea: Isopoda: Ischnomesidae): revision of two species and description of two new species

Zootaxa ◽  
2006 ◽  
Vol 1120 (1) ◽  
pp. 1 ◽  
Author(s):  
FIONA A. KAVANAGH ◽  
GEORGE D.F. WILSON ◽  
ANNE M. POWER
Keyword(s):  
New Species ◽  
Original Description ◽  
Type Specimen ◽  
Type Material ◽  
Adult Type ◽  
The Family ◽  
Two New Species ◽  
Argentine Basin

Two new species of Ischnomesidae, Haplomesus celticensis sp. nov. and Haplomesus hanseni sp. nov. are described from the southwest of Ireland and the Argentine Basin respectively. Both species lack the expression of pereopod VII, a characteristic that we argue is produced by progenesis, not neoteny as suggested by Brökeland & Brandt (2004). Haplomesus angustus Hansen, 1916 and Haplomesus tropicalis Menzies, 1962, also lack pereopod VII and are revised from the type material. The original description of Haplomesus angustus Hansen, 1916 describes the adult type specimen as a juvenile; the original description of Haplomesus tropicalis Menzies, 1962 fails to mention the lack of pereopod VII. Progenesis is discussed for the above species and within the family Ischnomesidae as a whole.

A new species of Corinnella Thomas & Dominique, 2006 (Ephemeroptera: Baetidae)

Zootaxa ◽  
2013 ◽  
Vol 3608 (1) ◽  
pp. 75-80 ◽  
Author(s):  
R. BOLDRINI ◽  
F. F. SALLES ◽  
A. M.O. PES
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
Original Description ◽  
Monotypic Genus ◽  
Tarsal Claw ◽  
French Guyana ◽  
Northern Brazil ◽  
First Time ◽  
A New Species

The monotypic genus Corinnella Thomas & Dominique, 2006, was described based on nymphs from French Guyana, and since the original description nothing has been added to knowledge of its systematics. The aim of the present paper is to describe a new species of the genus from Northern Brazil, to improve its diagnoses, and to report the genus for the first time from Brazil. The new species can be recognized by: labrum with discernible anteromedial emargination and process; posterior margin of terga IV with rounded spines; and tarsal claw with seven to nine denticles, with the outer and inner denticles distinctly longer than the others.

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