| the possible role of the frontal and sub-parietal gland systems of the pentastomid reighardia sternae (diesing, 1864) in the evasion of the host immune response. | the frontal and sub-parietal glands of the pentastomid reighardia sternae elaborate lamellate secretion which is poured on to the cuticle. the entire surface of the cuticle, including the mouth, hook pits and reproductive apertures, is coated with secretion. electron microscope studies indicate that the glands are continuously active, which implies a turnover of surface membranes. the postulated function of these membranes is to protect certain vital areas of the host--parasite interface, notabl ... | 1979 | 419004 |
| some ultrastructural observations on the integument of a pentastomid. | the cuticle of the cephalobaenid pentastomid reighardia sternae is described at various stages of the moult-intermoult cycle. the intermoult cuticle comprises four layers: an outer epicuticle; an underlying dense layer, the protein epicuticle; a fibrillar endocuticle; and a denser subcuticle. the overall similarity between the structure and composition of these layers and those of insects is discussed. however, the orientation of the chitin-protein fibres in the endocuticle does not show the rot ... | 1975 | 1118859 |
| an experimental investigation of a direct life-cycle in reighardia sternae (diesing, 1864), a pentastomid parasite of the herring gull (larus argentatus). | a direct life-cycle in reighardia sternae, a cephalobaenid pentastomid of gulls was investigated: the work was prompted by a report of eggs and larvae recovered from the stomach and intestine of a naturally infected gull. infective pentastomid eggs were obtained by surgically transplanting maturing female reighardia, taken from freshly shot wild gulls, into captive recipients. faecal material from birds thus artificially infected was collected daily and examined for eggs. eggs were force fed to ... | 1975 | 1202414 |
| some observations on egg production and autoreinfection of reighardia sternae (diesing, 1864), a pentastomid parasite of the herring gull. | egg production by reighardia sternae, implanted at various stages of maturity into the interclavicular air sacs of captive gulls, is described. females produce only 2900 eggs per lifetime over a short patent period of 1-3 days. the problem of a direct life-cycle in relation to this unusually low fecundity is discussed, and speculation is advanced concerning a possible parasitic behavioural trait which could facilitate direct transmission. the hazards of the latter are also offset by auto-reinfec ... | 1976 | 1256912 |
| an ultrastructural study of the body wall muscles of the pentastomid reighardia sternae dies. 1864 parasitic on the herring gull larus argentatus pontopp. | | 1972 | 4340208 |
| some observations on the life-cycle of reighardia sternae diesing 1864 (pentastomida). | | 1972 | 4639177 |
| the structure of the buccal cavity and pharynx in relation to the method of feeding of reighardia sternae diesing 1864 (pentastomida). | | 1973 | 4706567 |
| reighardia sternae, a pentastomid from a slaty-backed gull in hokkaido, japan. | | 1982 | 7169724 |
| investigation of the intestinal spherocrystals of different cephalobaenida (pentastomida). | the midgut cells of cephalobaenid pentastomids contain spherocrystals varying in size and appearance between the genera. iron was detected in the vicinity of the crystals in all three genera, being considerably fainter in reighardia sternae than in the other species. ultrastructurally a distinct lamination of the spherocrystals was evident, being faint in r. sternae but clearly expressed in raillietiella hemidactyli and cephalobaena tetrapoda. according to the species, their diameter ranged from ... | 1994 | 7971929 |
| considerations about the ontogenesis of reighardia sternae in comparison with raillietiella sp. (pentastomida: cephalobaenida). | the ontogenetic development of the cephalobaenids reighardia sternae and raillietiella sp. was compared and considerable differences with regard to stage size, development terms, habitat preference, and feeding behavior were found. on the basis of these differences we present a new interpretation of the life cycle of r. sternae, considering this species as an obligatory one-host parasite that has shifted its intermediate host phase into the egg. therefore, the hatching stage directly infects the ... | 1999 | 10099008 |
| raillietiella trachea n. sp., a pentastomid from the trachea of an oriental white-backed vulture gyps bengalensis taken in pakistan, with speculation about its life-cycle. | a cephalobaenid pentastomid, raillietiella trachea n. sp., from the trachea of a fledgling oriental white-backed vulture gyps bengalensis taken in punjab province, pakistan, is described. this is the first record of a pentastomid from a fully terrestrial bird. overall, gross morphology was typical of raillietiella sambon, 1910 in most respects. however, the hooks of r. trachea were of equal size, whereas in other members of the genus anterior hooks are smaller than the posterior hooks. the diagn ... | 2003 | 14574093 |
| morphological and molecular assessment of pentastomes from gulls in portugal. | during 2016, 153 gulls, including 64 larus fuscus and 89 larus michahellis, were found crippled in south portugal, died in wildlife rehabilitation and investigation center-rias, and were necropsied. reighardia sternae infected 2 (3%, n = 64) l. fuscus and 4 (4%, n = 89) l. michahellis. molecular analysis confirmed the morphological identification based on total body length, maximum body width, length of anterior and posterior hooks, total length of oral aparatus, and other features of oral apara ... | 2017 | 28665257 |