The African continent has a rich diversity of fish and amphibians in its inland water systems that serve as hosts for monogeneans of seven genera of the Gyrodactylidae van Beneden et Hesse, 1832. In August 2011, eight gyrodactylid parasites were collected from the gills of two specimens of bulldog, Marcusenius macrolepidotus (Peters), from Lake Kariba, Zimbabwe. Morphometric evaluation and sequencing of 18S rDNA confirmed that the specimens represented a species of a new viviparous genus, Tresuncinidactylus wilmienae gen. et sp. n. The attachment apparatus consists of a single pair of large slender hamuli with prominently flattened roots that are connected by a simple, narrow dorsal bar. The ventral bar is small and possesses a thin lingulate membrane but no evident anterolateral processes. There are 16 marginal hooks of one morphological type, but of three different sizes, with large falculate sickles that are proportionaly equal in length to the length of their handles. The two largest pairs of marginal hooks are positioned closest to the opisthaptoral peduncle, the neighbouring two pairs of medium-sized marginal hook sickles are situated along the lateral margins of the opisthaptor. Four pairs of smallest marginal hooks are positioned along the posterior margin of the opisthaptor. The male copulatory organ consists of a muscular pouch armed with approximately 30 gracile spines. Phylogenetic analyses of partial sequences of the 18S rDNA using Maximum Likelihood and Bayesian Inference placed the new genus within the lineage of solely African genera and suggests Afrogyrodactylus Paperna, 1968, Citharodactylus Přikrylová, Shinn et Paladini, 2017 and Mormyrogyrodactylus Luus-Powell, Mashego et Khalil, 2003 as genera most closely related to the new genus.
Four new Tapinomorphus species are described and illustrated: Tapinomorphus angolanus sp. nov. from Angola, T. kudrnai sp. nov. from Zambia, T. latipennis sp. nov. and T. verunkae sp. nov. from Zimbabwe. This brings the total number of species in the genus to 20. Habitus images and illustrations of important characters are provided.
The genus Pentatrachyphloeus Voss, 1974, with two known species, is redefined and compared with related genera. An additional thirty seven new species are described here: P. andersoni sp. nov. (South Africa, Mpumalanga); P. baumi sp. nov. (South Africa, Gauteng); P. brevithorax sp. nov. (South Africa, KwaZulu-Natal); P. bufo sp. nov. (South Africa, Mpumalanga); P. endroedyi sp. nov. (South Africa, Mpumalanga); P. exiguus sp. nov. (South Africa, Mpumalanga); P. frici sp. nov. (South Africa, Limpopo); P. grobbelaarae sp. nov. (South Africa, KwaZulu-Natal); P. hanzelkai sp. nov. (South Africa, KwaZulu-Natal); P. holubi sp. nov. (South Africa, Mpumalanga); P. howdenae sp. nov. (South Africa, Mpumalanga); P. hystrix sp. nov. (South Africa, Mpumalanga); P. insignicornis sp. nov. (South Africa, KwaZulu-Natal); P. kalalovae sp. nov. (South Africa, Gauteng); P. kuscheli sp. nov. (South Africa, KwaZulu-Natal); P. laevis sp. nov. (South Africa, Mpumalanga); P. lajumensis sp. nov. (South Africa, Limpopo); P. leleupi sp. nov. (Zimbabwe, Manica); P. lesothoensis sp. nov. (Lesotho, Qacha's Nek); P. machulkai sp. nov. (South Africa, Free State); P. marshalli sp. nov. (South Africa, KwaZulu-Natal); P. muellerae sp. nov. (South Africa, Mpumalanga); P. musili sp. nov. (South Africa, Limpopo); P. ntinini sp. nov. (South Africa, KwaZulu-Natal); P. oberprieleri sp. nov. (South Africa, Gauteng, North West); P. pavlicai sp. nov. (South Africa, Free State); P. rudyardi sp. nov. (South Africa, Limpopo); P. schoemani sp. nov. (South Africa, Limpopo); P. soutpansbergensis sp. nov. (South Africa, Limpopo); P. spinimanus sp. nov. (South Africa, Mpumalanga); P. stingli sp. nov. (South Africa, Limpopo); P. tenuicollis sp. nov. (South Africa, Mpumalanga); P. tuberculatus sp. nov. (South Africa, Mpumalanga); P. vavrai sp. nov. (South Africa, Eastern Cape); P. vossi sp. nov. (South Africa, Mpumalanga); P. vrazi sp. nov. (South Africa, Limpopo) and P. zikmundi sp. nov. (South Africa, Free State). All of the species are keyed and illustrated; ecological information is presented only where available. All species seem to be very localised, being known only from one or only a very limited number of localities. Immature stages or host plants are not known for any of the species. The species are distributed as follows: South Africa: Mpumalanga (13), Limpopo (8), KwaZulu-Natal (7), Free State (3), Gauteng (3), Eastern Cape (3), North West (1); Lesotho: Qacha's Nek (1) and Zimbabwe: Manica (1).
The genus Eulepida Kolbe, 1894 presently contains 22 species (Lacroix 2017, Sehnal 2018) divided on the base of external and aedeagal morphology into three groups (see Lacroix 2010, 2013 for details). Group II is defined by the combination of the following characters: protibia bidentate; antennal club distinctly longer than antennal shaft; pygidium narrow, longer than wide, with a pronounced elongate terminal invagination; and parameres symmetrical, long, evenly curved in ventral aspect (Lacroix 2010). Until recently this group contained three species, E. anatina Brenske, 1896, E. tschindeana Péringuey, 1904 and E. werneri Lacroix, 2010, to which Lacroix Montreuil (2017) added E. delgadoensis from Mozambique and Sehnal (2018) added E. mbala from Zambia. Shortly after the description of E. mbala I received large series of melolonthines from Zimbabwe and Mozambique, which included another markedly different group II species of Eulepida described below.
- MeSH
- Coleoptera * MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Mozambique MeSH
- Zambia MeSH
- Zimbabwe MeSH
Youth represent a large proportion of new HIV infections worldwide, yet their utilization of HIV testing and counseling (HTC) remains low. Using the post-intervention, cross-sectional, population-based household survey done in 2011 as part of HPTN 043/NIMH Project Accept, a cluster-randomized trial of community mobilization and mobile HTC in South Africa (Soweto and KwaZulu Natal), Zimbabwe, Tanzania and Thailand, we evaluated age-related differences among socio-demographic and behavioral determinants of HTC in study participants by study arm, site, and gender. A multivariate logistic regression model was developed using complete individual data from 13,755 participants with recent HIV testing (prior 12 months) as the outcome. Youth (18-24 years) was not predictive of recent HTC, except for high-risk youth with multiple concurrent partners, who were less likely (aOR 0.75; 95% CI 0.61-0.92) to have recently been tested than youth reporting a single partner. Importantly, the intervention was successful in reaching men with site specific success ranging from aOR 1.27 (95% CI 1.05-1.53) in South Africa to aOR 2.30 in Thailand (95% CI 1.85-2.84). Finally, across a diverse range of settings, higher education (aOR 1.67; 95% CI 1.42, 1.96), higher socio-economic status (aOR 1.21; 95% CI 1.08-1.36), and marriage (aOR 1.55; 95% CI 1.37-1.75) were all predictive of recent HTC, which did not significantly vary across study arm, site, gender or age category (18-24 vs. 25-32 years).
- MeSH
- Adult MeSH
- HIV Infections diagnosis prevention & control MeSH
- Humans MeSH
- Adolescent MeSH
- Young Adult MeSH
- Patient Acceptance of Health Care MeSH
- Mass Screening statistics & numerical data MeSH
- Counseling * MeSH
- Cross-Sectional Studies MeSH
- Sexual Partners * MeSH
- Socioeconomic Factors MeSH
- Age Factors MeSH
- Check Tag
- Adult MeSH
- Humans MeSH
- Adolescent MeSH
- Young Adult MeSH
- Male MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, N.I.H., Extramural MeSH
- Geographicals
- South Africa MeSH
- Tanzania MeSH
- Thailand MeSH
- Zimbabwe MeSH
Two new and one known species of Annulotrema Paperna & Thurston, 1969 are reported from the gills of the tigerfish Hydrocynus vittatus Castelnau, 1861, collected in Lake Kariba, Zimbabwe. The new species, Annulotrema pseudonili n. sp. and A. bracteatum n. sp., are described and distinguished mainly on the basis of features of the male copulatory organ (MCO). Annulotrema pseudonili n. sp. most closely resembles A. nili Paperna, 1973, but differs from it by possessing a more delicate MCO with a thin-walled base without a fibrous distal part. Annulotrema bracteatum n. sp. is most similar to Annulotrema ruahae Paperna, 1973, from which it differs by having an MCO composed of a longer copulatory tube and a leaf-shaped accessory piece enveloping the distal part of the tube. The presence of Annulotrema pikoides Guégan, Lambert & Birgi, 1988 on H. vittatus in Zimbabwe represents a new locality record for this parasite.
- MeSH
- Cestode Infections parasitology veterinary MeSH
- Characiformes parasitology MeSH
- Lakes MeSH
- Fish Diseases parasitology MeSH
- Platyhelminths classification growth & development isolation & purification physiology MeSH
- Animals MeSH
- Check Tag
- Male MeSH
- Female MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Zimbabwe MeSH
The genus Eulepida Kolbe, 1894 (Coleoptera: Scarabaeidae: Melolonthinae: Leucopholini) was established to accommodate 10 Afrotropical species, seven new and three previously placed in Lepidiota Kirby, 1828, Proagosternus Blanchard, 1851, and Tricholepis Hampson, 1891. Lacroix (2010) designated Leucopholis lepidota Klug, 1855 as the type species of the genus Eulepida. Currently the genus contains 20 species divided into three groups based on morphological characters (Lacroix 2010, 2013): species group I includes Eulepida lepidota (Klug, 1855), E. minor Moser, 1913, E. nitidicollis Kolbe, 1894, E. nyassica Kolbe, 1894, E. sinuatifrons (Fairmaire, 1887), and E. zambiensis Lacroix, 2010; species group II includes E. anatina Brenske, 1896, E. tschindeana Péringuey, 1904, and E. werneri Lacroix, 2010; and species group III includes E. baumanni Kolbe, 1894, E. flavovestita Moser, 1913, E. gracilipes Kolbe, 1894, E. kameruna (Frey, 1972), E. kenyensis Lacroix, 2010, E. mamboiae Brenske, 1896, E. manowensis Moser, 1913, E. mashona Arrow, 1902, E. montana Kolbe, 1894, E. reichei (Thomson, 1858), and E. savagei (Hope, 1842). Examination of material recently collected in Zambia revealed an undescribed species belonging to species group II (sensu Lacroix 2010). This group is defined by the combination of the following characters: protibia bidentate; antennal club distinctly longer than antennal shaft; pygidium narrow, longer than wide, with a pronounced elongate terminal invagination; and parameres symmetrical, long, evenly curved in ventral aspect (Lacroix 2010). The purpose of this paper is to describe one new species, to add new geographic records for some Eulepida species of group II, and to update the key for this group. New faunistic records are reported for Eulepida tschindeana and Eulepida werneri from Zimbabwe.
Oedanomerus Waterhouse, 1875 (Coleoptera: Scarabaeidae: Melolonthinae: Tanyproctini) was established for a single species Oedanomerus hirsutus Waterhouse, 1875 from Botswana. Arrow (1936) later described O. longicornis from Zambia and Frey (1960) described O. pilosus from Mozambique. Evans (1987) revised the genus and described O. capriviensis and O. bicolor from Namibia. Finally, Lacroix (2005) described O. snizeki from Zimbabwe, O. squamosus from Botswana, and O. uhligi from Namibia.
New findings on Gyrodactylus spp. parasitising African cichlids in southern Africa are presented, comprising data from Zimbabwe and South Africa. Morphometry of opisthaptoral hard parts in combination with nuclear ribosomal DNA sequences confirmed the presence of six species of Gyrodactylus von Nordmann, 1832. Three new species are described from fishes in Zimbabwe: Gyrodactylus chitandiri n. sp. from the gill arches of Coptodon rendalli (Boulenger) and Pseudocrenilabrus philander (Weber); Gyrodactylus occupatus n. sp. from the fins of Oreochromis niloticus (L.), Pharyngochromis acuticeps (Steindachner) and P. philander; and Gyrodactylus parisellei n. sp. from the fins of O. niloticus, P. philander and Tilapia sp. Gyrodactylus nyanzae Paperna, 1973 was also identified from the gills of O. niloticus and C. rendalli collected from two localities in Zimbabwe; these findings represent new host and locality records for this parasite. Gyrodactylus sturmbaueri Vanhove, Snoeks, Volckaert & Huyse, 2011 was identified from P. philander collected in South Africa and Zimbabwe thereby providing new host and locality records for this parasite. Finally, Gyrodactylus yacatli García-Vásquez, Hansen, Christison, Bron & Shinn, 2011 was collected from the fins of O. niloticus and P. philander studied in Zimbabwe; this represents the first record of this species from the continent of Africa. Notably, this study improves upon the knowledge of Gyrodactylus spp. parasitising cichlids from these southern African regions. All species studied were recorded from at least two different cichlid host species indicating trend for a wide range of Gyrodactylus hosts in Africa. Accordingly, this supports the idea of intensive host switching in the course of their evolution.
- MeSH
- Biodiversity MeSH
- Cichlids parasitology MeSH
- DNA, Helminth genetics MeSH
- Species Specificity MeSH
- Phylogeny MeSH
- Host Specificity MeSH
- Animal Fins parasitology MeSH
- Rivers MeSH
- DNA, Ribosomal genetics MeSH
- Trematoda anatomy & histology classification genetics MeSH
- Gills parasitology MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- South Africa MeSH
- Zimbabwe MeSH
The laryngoscope, ISSN 0023-852X Volume 125, supplementum 1, February 2015
17 stran : ilustrace, tabulky ; 28 cm
- MeSH
- Health Services Accessibility MeSH
- Geographic Information Systems MeSH
- Global Burden of Disease MeSH
- Disease Hotspot MeSH
- Orthognathic Surgical Procedures MeSH
- Cleft Palate MeSH
- Cleft Lip MeSH
- Geographicals
- Zimbabwe MeSH
- Conspectus
- Patologie. Klinická medicína
- NML Fields
- otorinolaryngologie
- stomatochirurgie
- epidemiologie
- NML Publication type
- studie
