On Retortamonas cheloni sp.nov., a parasitic Protozoon from the starred tortoise

Parasitology ◽  
1962 ◽  
Vol 52 (1-2) ◽  
pp. 165-168 ◽  
Author(s):  
Kilambi Janakidevi

Retortamonas cheloni sp.nov., from the large intestine of the starred tortoise, Testudo elegans Schoepff, 1792, is described. Body oval with a long caudal process; length of body 4·2–11·5μ, 7·9 average; breadth 3·0–6·5μ, average 4·4; length of caudal process 1·0–7·0μ, average 4·0. Nucleus round, situated at the extreme anterior end, with a thin ring of chromatin adjacent to the nuclear membrane and sometimes an endosome. Cytostome deep, extending one-third to one-half of the body-length and bordered by two siderophilic threads. Close to the nucleus are two blepharoplasts from which arise two unequal flagella and the two siderophilic threads. Periplast rigid.

Author(s):  
Matías Reolid ◽  
Francisco J. Cardenal ◽  
Jesús Reolid

AbstractThe aim of this work is to obtain diverse morphometric data from digitized 3D models of scientifically accurate palaeoreconstructions of theropods from eight representative families. The analysed polyvinyl chloride (PVC) models belong to the genera Coelophysis, Dilophosaurus, Ceratosaurus, Allosaurus, Baryonyx, Carnotaurus, Giganotosaurus, and Tyrannosaurus. The scanned 3D models were scaled considering different body-size estimations of the literature. The 3D analysis of these genera provides information on the skull length and body length that allows for recognition of major evolutionary trends. The skull length/body length in the studied genera increases according with the size of the body from the smallest Coelophysis with a ratio of 0.093 to ratios of 0.119–0.120 for Tyrannosaurus and Giganotosaurus, the largest study theropods. The study of photogrammetric 3D models also provides morphometric information that cannot be obtained from the study of bones alone, but knowing that all reconstructions begin from the fossil bones, such as the surface/volume ratio (S/V). For the studied theropod genera surface/volume ratio ranges from 35.21 for Coelophysis to 5.55 for Tyrannosaurus. This parameter, closely related to the heat dissipation, help in the characterization of the metabolism of extinct taxa. Accordingly, slender primitive forms of the Early Jurassic (i.e. Coelophysis and Dilophosaurus) had relatively smaller skulls and higher mass-specific metabolic rates than the robust large theropods of the Cretaceous (i.e. Giganotosaurus and Tyrannosaurus). This work presents a technique that, when applied to proper dinosaur models, provides extent and accurate data that may help in diverse study areas within the dinosaur palaeontology and palaeobiology.


2017 ◽  
Vol 92 (1) ◽  
pp. 109-115 ◽  
Author(s):  
P.H.O. Cavalcante ◽  
F. Moravec ◽  
C.P. Santos

AbstractA new nematode species,Philometroides acreanensisn. sp. (Philometridae), is described from female specimens recovered from the stomach wall of the freshwater catfishPimelodus blochiiValenciennes (Pimelodidae) collected in the Acre River (Amazon River basin), Acre State, Brazil. Based on examination by light and scanning electron microscopy, the new species differs from the two other South American congeneric species mainly in the body length of the gravid female (240–280 mm), the length of the oesophagus (1.25 mm in holotype) representing 0.5% of the entire body length, the range of cuticular embossment, as well as the location in the host (stomach), order of the fish host (Siluriformes) and the geographical distribution (Amazon River drainage system). This is the third known species ofPhilometroidesYamaguti, 1935 reported from South America. A key to species ofPhilometroidesoccurring in the fish of America is provided.


2018 ◽  
Vol 63 (4) ◽  
pp. 835-838 ◽  
Author(s):  
Roser Adalid ◽  
Jordi Torres ◽  
Marcos Miñarro ◽  
Màrius Vicent Fuentes ◽  
Jordi Miquel

Abstract The Ityogonimus lorum-I. ocreatus co-infection is reported for the first time in the Iberian mole Talpa occidentalis in Asturias (NW Spain). Both Ityogonimus species are stenoxenous helminths of insectivores of the genus Talpa and they have often been found parasitizing the Iberian mole and also the European mole T. europaea, but a mixed infection had not been previously reported. The present study also highlights the main differential morphometric characteristics between I. lorum and I. ocreatus such as the body length, the ventral sucker diameter, the ratio between suckers and the distance between suckers.


2018 ◽  
Vol 63 (4) ◽  
pp. 766-771 ◽  
Author(s):  
Nessrine Ghanmi ◽  
David González-Solís ◽  
Lamia Gargouri

Abstract Helminthological examinations of the red mullet Mullus barbatus (Linnaeus) (Mullidae) from the Gulf of Hammamet, off Tunisia, revealed the presence of one undescribed gonad-infecting nematode species, Philometra barbata n. sp. (Philometridae). The new species as other congeneric species is mainly characterized by the shape of the caudal mound, the distribution of the caudal papillae and the shape of the gubernaculum with the presence of a dorsal protuberance consisting of two dorsolateral lamellar parts separated from each other by a smooth median field in the male. The new species differs from its gonadinfecting congeners in the body length of male, the length of spicules and gubernaculum. This is the second nominal species of Philometra reported from fishes of the family Mullidae and the 14th from the Mediterranean Sea.


2006 ◽  
Vol 66 (1a) ◽  
pp. 85-93 ◽  
Author(s):  
M. I. Hamann

From December 1995 to November 2000, the seasonal maturation of Glypthelmins vitellinophilum Dobbin, 1958, in its definitive host, the frog Lysapsus limellus Cope, 1862, was studied in a subtropical permanent pond in northeastern Argentina. The objectives of this study were: 1) to determine the infrapopulation dynamics of the parasite, analyzing the seasonal maturation cycle throughout the years; and 2) to examine the relationship between the intensity of trematode infection in different developmental stages (recruitment, growth and maturation) and the host's body length. Of a total of 1,400 frogs examined over 60 months (5 years), 38% were found to be infected with G. vitellinophilum, and the intensity of infection was 1-15 trematodes per frog. Specimens of G. vitellinophilum were present in L. limellus throughout the years, but did not show a pronounced seasonal maturation cycle. Possible reasons for these findings are discussed with reference to climatic fluctuations and biotic factors. The infective period of the parasite (stage I) occurred in summer, autumn and spring, coinciding with the time each frog cohort appeared. These infections were found principally in small body sizes (classes 1 and 2) of L. limellus. Juvenile and nongravid specimens of worms (stage II and III) were found in frogs of different body sizes throughout the period of investigation. Gravid specimens of the parasite (stage IV) were generally recorded in autumn, winter and spring, mainly in the bodies of larger frogs. The body length of Trematodes in stages I and IV was significantly and positively correlated with that of the frogs.


2019 ◽  
Vol 10 (2) ◽  
pp. 276
Author(s):  
Yusari Asih ◽  
I Gusti Ayu Mirah WS

<p><span>Baby Massage and Spa was a traditional effort that uses a holistic approach through comprehensive care using a combination of massage and water therapy methods that are carried out in an integrated manner to balance the body, mind, and feelings. Age 3-6 months is the right time for babies to do massage and spa. The purpose of this study was to determine the effect of baby massage and spa on the growth of infants aged 3-5 months in Pringsewu District in 2018. This study uses a quasi-experimental approach with research design pre and post-test with control group design. The purposive sampling technique was taken with a sample of 30 infants as the intervention group and 30 infants as the control group. Data were processed using computerization and analyzed using the T-Test. The results showed that there were significant differences between body weight, body length and baby head circumference in the pre and post-treatment. There was no significant difference in the average increase in infant weight between babies who were carried out by baby massage and spa with babies who were not carried out by baby massage and spa with p-value 0.116. There is a significant difference in the baby's body length and head circumference performed by baby massage and spa with those not carried out by baby massage and spa with p-value 0.000. Baby Massage and Spa has a significant effect on increasing the growth of babies aged 3-5 months.</span></p><p><span> </span></p>


Author(s):  
M Mirzahmedov ◽  
M Ahmedov ◽  
D Sapaev

The Material of the study has formed 78 sick, found on stationary treatment in Republican Scientific Centre Coloproktologii since 1992 on 2010. As it is seen, from table, from 78 sick mans was 58(74,3%), womans 20(25,7%).  19(24,3), sick were at age from 15 before 20 years, 49(60,2%) at age from 21 before 40 years and 13 (16,6%) sick from 41 before 60 years.         The Main complaint sick at arrival were a stubborn constipations, which noted beside 70 (89,7%) sick, including absence of the independent chair existed - beside 55(70,5%), but beside 54(69,2%) sick were noted periodic stomachache, growing on measure of the absence of the chair. The Ballooned belly existed beside all 78 (100%) sick moreover beside 20(25,6%) of them flatulence was constant. The Sickness and retching existed beside 24(30,7%), weakness, reduction to capacity to work beside 52(66,6%), increasing of the temperature of the body beside 10(12,8%), paradoxical diarrhoeas beside 6(7,6%) sick. Endoskopicheskiy method (rectoromonoscopy, colonoscopy) turned out to be else less informations - 51,8% coincidences of the diagnosis. So we biopsy on Svensonu executed beside all sick, entered with suspicion on disease Girshprunga. In our observations from 78 sick beside 42(53,8,1%) were aboveanalni, beside 20(25,6%) sick - rectalis, beside 13(16,6%)- rectosigmoideys , beside 2(2,5%) leftside and beside 1(1,2%) sick - subtotalis  form hipoganglios. At biopsies on Svensonu on observations, from 78 sick, beside 44(56,4%) is revealled hipoganglios, but beside 35(44,8%) - аganglios rectum. As can be seen from presented tables, from 78 sick beside 68(87,2%) us is executed onemoments radical operation, 10(12,8%) sick is as far as possible made resection hipo- or aganglionarnaya of the zone, decompensate part of the large intestine and is formed colostomy. In all events at operations. The Remote results executed radical operation on cause disease Girshprunga прослежены from 1 before 10 years beside 57(73%) sick. The Results of the surgical treatment were valued on scale Vezika: good, satisfactory and unsatisfactory.  In our observations beside 46(80,7%) sick results came in well, beside 10(17,5%) - satisfactory and beside 1(1,8%) sick was an unsatisfactory result. 


2019 ◽  
Vol 20 (2) ◽  
Author(s):  
AMALIA CUADROS ◽  
JOAN MORANTA ◽  
LUIS CARDONA ◽  
PIERRE THIRIET ◽  
PATRICE FRANCOUR ◽  
...  

The sublittoral forests formed by the fucoid algae Cystoseira spp. are important juvenile habitats for many Mediterranean fish species. However, the spatial variability of juvenile fish assemblages within the forests and the potential environmental drivers, such as depth and habitat complexity, remain poorly understood. We estimated densities, sizes and behaviours of juvenile fish assemblages in subtidal (0-15 meters) Cystoseira brachycarpa var. balearica forests in north Minorca Island (North-western Mediterranean Sea) over two consecutive autumns (2012 and 2013). Depth and forest complexity, here measured as canopy volume, had both a significant and independent effect on the juvenile fish assemblages in terms of species abundance composition and body size. Assemblages found in the shallowest depth range (3-4m) were characterized by greater densities of the ornate wrasse Thalassoma pavo, while those deeper (10-12m) had higher densities of the rainbow wrasse Coris julis, independently of its size composition. Juveniles of both species were more abundant in less complex forests; conversely juveniles of wrasses of the genus Symphodus were more abundant in more complex forests. The smallest sizes of T. pavo occurred in the most complex forests. On the other hand, our results demonstrated that juvenile fish behaviours were unrelated to the complexity of the Cystoseira forests but mainly related to the body length. The effects of body length on behaviour were however species dependent. Cryptic and transitory behaviours were mostly observed in the smallest and largest juveniles of T. pavo and C. julis, respectively, while the behaviour of Symphodus spp. was unrelated to their body length. Our study emphasises the importance of preserving healthy Cystoseira forests and their intrinsic patchy nature, as this habitat, with its mosaic of different complexity degrees and bathymetrical variability, enable the presence of different fish species at various life stages.


2021 ◽  
Vol 51 (2) ◽  
pp. 156-161
Author(s):  
Gisele de Castro Maciel VALDEVINO ◽  
Vera Maria Ferreira DA SILVA ◽  
Rodrigo de Souza AMARAL

ABSTRACT Body length is an important parameter in morphological, ecological and behavioral studies of a species and contributes to the understanding of the body condition of individuals. This parameter is essential for conservation and management strategies by informing studies evaluating growth rates, physical maturity and classification of individuals into age groups, promoting better accuracy for the biological parameters of the species. The aim of this study was to identify predictors of body length for Amazonian manatees (Trichechus inunguis) using metric characters of osteological materials. Eleven linear measurements of skull, jaw, scapulae and humeri were collected from 41 Amazonian manatee skeletons of different age classes (calf, juvenile and adult). Data were analyzed by simple linear regression. The condylobasal length was the best predictor of body length for the species (R = 0.943), however, all bones evaluated showed at least one measurement with the capacity to predict body size (R2 > 0.9). Results of this study are useful for inferring body length of Amazonian manatees using bones deposited in museums and biological collections, expanding the informative potential of these materials.


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