| culex neavei theobald, as a possible transmitter of hepatozoon matruhensis to the egyptian snake psammophis schokari. | stained smears of culex neavei females infected with hepattozoon matruhensis from psammophis schokari and kept at 20 +/- 1 degrees c showed the complete developmental stages of the parasite. however, no detection of sporozoites was monitored when females were kept at 30 +/- 1 degrees c. a successful infection of p. schokari was carried out in the laboratory by c. neavei bites. the effect of infection on the mosquito longevity was insignificant (p>0.05) under low temperature and highly significan ... | 2006 | 16605095 |
| laboratory studies on the possibility of culex (culex) pipiens l. to harbour and transmit hepatozoon matruhensis to the egyptian snake psammophis schokari. | a successful experimental infection of psammophis schokari snake with hepatozoon matruhensis through culex (culex) pipiens bites was carried out under laboratory condition of 20 +/- 1 degrees c and 60-70 % r.h. the period monitored for gametocyte maturation ranged from 38 to 42 days while the recorded prepatent period ranged from 28 to 35 days. the effect of infection was nonsignificant on longevity, incubation period and percenttage of egg hatching (p>0.05). meanwhile a significant increase (p< ... | 2006 | 16605113 |
| experimental transmission of hepatozoon gracilis (wenyon, 1909) com. nov., in its natural host the bean skink lizard (mabuya quinquetaeniata quinquetaeniata) and vector culex (c.) pipiens (diptera: culicidae). | the bean skink lizard mabuya quinquetaeniata quinquetaeniata (family: scincidae) collected from abu-rawash, giza was infected with the protozoon hepatozoon gracilis. the mean percent of infection rate all over the year was 12.57% with the highest peak was in october (33%), meanwhile the lowest infection rate was detected in june (2.1%) and no infection was detected in february. microscopical examination of experimentally infected culex (c.) pipiens l smears revealed the presence of gamogony and ... | 2007 | 18431994 |
| redescription of haemogregarina garnhami (apicomplexa: adeleorina) from the blood of psammophis schokari (serpentes: colubridae) as hepatozoon garnhami n. comb. based on molecular, morphometric and morphologic characters. | hepatozoon garnhami n. comb. was redescribed from schokari sand snakes (psammophis schokari) collected from riyadh city in saudi arabia. gametocytes were found in the peripheral blood of 2 of 15 snakes examined. based on the similar morphological and morphometric characteristics, the same host and a similar host habitat environment, it can be concluded for the first time that the present species is conspecific with haemogregarina garnhami previously reported from psammophis shokari aegyptius. to ... | 2014 | 24827101 |
| echis carinatus (serpentes: viperidae) as a new host for caryospora maxima (apicomplexa: eimeriidae) in saudi arabia. | caryospora maxima is redescribed from the intestinal contents of the viperid snake, echis carinatus collected from gazan area in the southern region of saudi arabia. this report represents a new host and geographic location for the parasite. sporulated oocysts of this coccidian are spherical to subspherical, 42.8 x 41.2 (40.3-45.9 x 39.6-43.8) microm, with smooth brownish-yellow bilayered wall, 1.9 (1.5-2.3) microm. thick. micropyle and oocyst residuum are absent. some oocysts had a small polar ... | 2004 | 15287179 |
| the role of climatic cycles and trans-saharan migration corridors in species diversification: biogeography of psammophis schokari group in north africa. | highlands, hydrographic systems and coastal areas have been hypothesised to form corridors across the hyperarid sahara desert in north africa, allowing dispersal and gene flow for non-xeric species. here we aim to provide a genetic test for the trans-saharan corridor model, and predict the location and stability of ecological-corridors, by combining phylogeography and palaeoclimatic modelling. the model was the psammophis schokari (schokari sand racer) group, fast-moving and widely distributed g ... | 2018 | 28919506 |
| molecular assessment of apicomplexan parasites in the snake psammophis from north africa: do multiple parasite lineages reflect the final vertebrate host diet? | the apicomplexa are intracellular pathogens of animals, with the coccidia being the largest group. among these are the hemogregarines, which include some of the most common hemoparasites found in reptiles. several studies have reported a possible pattern of prey-predator transmission for some of these parasites. snakes from the mediterranean region have been found to be parasitized with hepatozoon spp. similar to those in lacertids and gekkonids, supporting the prey-predator transmission hypothe ... | 2013 | 23537006 |
| local envenoming by the schokari sand racer, psammophis schokari forskål, 1775 (serpentes, psammophiidae) and a brief review of reported bites by sand racers (psammophis spp.). | a recent case of a bite by a psammophiid snake, psammophis schokari, is described and analyzed. this is the first report of local envenoming by this species. the 1 m long p. schokari inflicted a protracted bite on the third digit, right hand of the male 59 year-old victim who developed mild, but locally progressive edema and persistent pain; full resolution required almost three months. all documented cases of bites by snakes of the genus psammophis are briefly reviewed and discussed. finally, w ... | 2020 | 32615184 |