Psammophilous halacarid mites (Trombidiformes, Halacaridae) from the North Coast of São Paulo State, Brazil

Pepato, Almir R.; Tiago, Cláudio Gonçalves; Rocha, Carlos Eduardo Falavigna da

doi:10.11646/zootaxa.2823.1.3

Cited by 6 publications

(5 citation statements)

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“… Halacaroides antoniazziae Pepato, Tiago & da Rocha, . — A. Transverse section through the genital area.…”

Section: Resultsmentioning

confidence: 99%

“…Specimens belonging to Halacaroides antoniazziae Pepato, Tiago & da Rocha, , and Acaromantis vespucioi Pepato & Tiago, 2004, were collected from intertidal coarse sand at Pitangueiras Beach (23°49′36.88″S, 45°25′19.27″W) in São Sebastião, South‐eastern Brazil, on 12 June 2006. Sand was stirred in a bucket with salt water, and floated material was sieved through a 50‐μm sieve.…”

Section: Methodsmentioning

confidence: 99%

“…The genus Halacaroides Bartsch was originally proposed to accommodate two slender and soft‐bodied psammophilous species found near the Strait of Magellan, and it now comprises four species (Pepato et al . ). They resemble the other interstitial genera Anomalohalacarus and Arenihalacarus , although Halacaroides has the distinctive feature of conspicuous ocular plates (Bartsch ).…”

Section: Introductionmentioning

confidence: 97%

“…Interstitial mites display certain recurrent adaptations related to living in the interstitial space, such as elongated, spindle shaped or flattened bodies; small size; reduction of body sclerotization, loss of the ocular plate; and the division of plates by stripes of membranous cuticle to improve body flexibility (Pepato et al . ). Sometimes it is evident when comparing mites belonging to the same genus (e.g.…”

Section: Introductionmentioning

confidence: 97%

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Spermatogenesis, sperm cell morphology and accompanying secretions from two interstitial marine mites

2014

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Pepato A.R., Antoniazzi M.M. and Jared C. 2016. Spermatogenesis, sperm cell morphology and accompanying secretions from two interstitial marine mites. -Acta Zoologica (Stockholm) 97: 60-66.The sperm cell morphology and spermatogenesis of Halacaroides antoniazziae Pepato Tiago and da Rocha 2011 and Acaromantis vespucioi Pepato and Tiago 2004 was investigated. Halacaroides sperm cells have a complete acrosomal complex, dense tubules crossing the cytoplasm and modified mitochondria. Mature sperm cells are surrounded by two kinds of secretions. Inside the ejaculatory duct, they lie upon a centre composed of a secretion structured as heaps of elongated bodies. Acaromantis spermatozoa are spindle shaped and lack an acrosomal complex. The plasmalemma is deeply folded; the cytoplasm is very reduced and devoid of organelles. A single kind of globular secretion was found. The sperm mass is surrounded by two layers of amorphous secretions. These species share a peripheral pattern of nuclear condensation during spermatogenesis, a possible apomorphy for most halacarids, and no special adaptation to the interstitial environment could be related to their sperm cell morphology.

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“… Halacaroides antoniazziae Pepato, Tiago & da Rocha, . — A. Transverse section through the genital area.…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

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Spermatogenesis, sperm cell morphology and accompanying secretions from two interstitial marine mites

2014

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“…One may add Halacaroides and Isobactrus to the aforementioned three genera. Representatives of Halacaroides have been found in beach areas strongly influenced by fresh water, and here, too, males have external genital acetabula (Bartsch 2008b;Pepato et al 2011). The two Isobactrus species-I.…”

Section: Distribution and Reflections On Special Character Statesmentioning

confidence: 78%

The Halacarid Genus Lohmannella (Halacaridae, Acari): List of Species, Notes on Characters, Distribution, Ecology and a Tabular Key

Bartsch

2021

Acarina

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Presently, 39 Lohmannella species are accepted as valid, but future examinations may prove some of them to be junior synonyms of others. This article lists the most important descriptive papers, as well as the former names for each of the 39 species. The characters of another five species, known by their adults, are outlined but not given a name. Based on the published data, short diagnoses as well as notes on the distribution and habitats are added. In addition, the poorly known female of Lohmannella bihamata is described and illustrated. This article provides a table of morphological characters that are meant to facilitate the identification of Lohmannella species. The genus Lohmannella is spread worldwide, inhabiting all water depths and all climatic zones; its representatives live in marine and fresh water. Although the majority of Lohmannella species have been found at sea, five species have been recovered from fresh or slightly brackish water. In the following sentences, the number of unnamed species is given in square brackets. Records of 33 [plus two] marine species are exclusively from the littoral and/or bathyal zone (0–1,000 m deep); records of three [plus three] species are from the deep sea (deeper than 1,000 m); and one record is from the littoral / deep sea depth range. Most species have been found in the temperate and polar areas: namely, 12 [plus two] have been recorded north of 23°N and 20 south of 23°S. The data from the tropics include a single shallow water (0–200 m deep) record, one unnamed species from the 400–520 m depth and one [plus two] species from the depth of more than 1,000 m. Most southern hemisphere shallow water species are morphologically distinct from the bathyal and abyssal species, as well as from the northern hemisphere species.

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Hotspots of new species discovery: new mite species described during 2007 to 2012

Liu¹,

Yi²,

Xu³

et al. 2013

Zootaxa

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(991 speciesThe top family is the Eriophyidae, which alone accounted for nearly 15% of the total new species. Geographically, the new species were described from 92 countries and their distribution among these countries is highly uneven. The top 10 countries accounted for 62% of all the new species and the top country, China, alone accounted for 18% of the total. The average number of new species per country is 15 and no more than a fifth of the countries are above the average, and 40% of the countries have only 1-3 new species each. The top country for each continent is China (248 species) for Asia, Australia (166 species) for Oceania, Brazil (76 species) for South America, Kenya (51 species) for Africa, USA (51 species) for North America and Russia (42 species) for Europe. Increased efforts in discovering and describing new species are much needed for biodiversity-rich countries in South America, Southeast Asia and Africa.

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Psammophilous halacarid mites (Trombidiformes, Halacaridae) from the North Coast of São Paulo State, Brazil

Cited by 6 publications

References 1 publication

Spermatogenesis, sperm cell morphology and accompanying secretions from two interstitial marine mites

Spermatogenesis, sperm cell morphology and accompanying secretions from two interstitial marine mites

The Halacarid Genus Lohmannella (Halacaridae, Acari): List of Species, Notes on Characters, Distribution, Ecology and a Tabular Key

Hotspots of new species discovery: new mite species described during 2007 to 2012

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