scholarly journals INTERNAL ANATOMY OF THE OLIVE TURTLE (Lepidochelys olivacea)

2021 ◽  
Vol 4 (3) ◽  
pp. 65-70
Author(s):  
Gil Dutra Furtado ◽  
Rute Cavalcante Silva ◽  
Patricia Aguiar Oliveira ◽  
Martin Lindsey Christoffersen

In this article, the internal organs of an olive sea turtle (Lepidochelys olivacea) were described. The autopsy was based on a methodological guide of “Virchow”. The Cardiorespiratory, Digestive, Liver, Gallbladder, Pancreas, Spleen, Genito-Urinary System, and Endocrine System systems were observed. This description of the internal organs aimed to provide practice in anatomical identification and to provide didactic information for the students of the course in veterinary medicine.

Phytotaxa ◽  
2015 ◽  
Vol 233 (3) ◽  
pp. 236 ◽  
Author(s):  
Roksana Majewska ◽  
J. P. Kociolek ◽  
Evan W. Thomas ◽  
Mario De Stefano ◽  
Mario Santoro ◽  
...  

Marine mammals such as whales and dolphins have been known for a long time to host a very specific epizoic community on their skin. Less known however is the presence of a similar community on the carapaces of sea turtles. The present study is the first describing new taxa inhabiting sea turtle carapaces. Samples, collected from nesting olive ridley sea turtles (Lepidochelys olivacea) on Ostional Beach (Costa Rica), were studied using light and scanning electron microscopy. Two unknown small-celled gomphonemoid taxa were analysed in more detail and are described as two new genera, closely related to other gomphonemoid genera with septate girdle bands, such as Tripterion, Cuneolus and Gomphoseptatum. Chelonicola Majewska, De Stefano & Van de Vijver gen. nov. has a flat valve face, uniseriate striae composed of more than three areolae, simple external raphe endings, internally a siliceous flap over the proximal raphe endings and lives on mucilaginous stalks. Poulinea Majewska, De Stefano & Van de Vijver gen. nov. has at least one concave valve, uniseriate striae composed of only two elongated areolae, external distal raphe endings covered by thickened siliceous flaps and lives attached to the substrate by a mucilaginous pad. Chelonicola costaricensis Majewska, De Stefano & Van de Vijver sp. nov. and Poulinea lepidochelicola Majewska, De Stefano & Van de Vijver sp. nov. can be separated based on stria structure, girdle structure composed of more than 10 copulae, raphe structure and general valve outline. A cladistics analysis of putative members of the Rhoicospheniaceae indicates that the family is polyphyletic. Chelonicola and Poulinea are sister taxa, and form a monophyletic group with Cuneolus and Tripterion, but are not closely related to Rhoicosphenia, or other genera previously assigned to this family. Features used to help diagnose the family such as symmetry and presence of septa and pseudosepta are homoplastic across the raphid diatom tree of life.


Author(s):  
REM Oliveira ◽  
FLN Attademo ◽  
JS Galvincio ◽  
ACB Freire ◽  
AS Silva ◽  
...  

The standardisation of protocols and discussion of therapeutic procedures in the rehabilitation of turtles affected by oil spills are necessary to optimise the recovery time and increase the chances of survival of these animals. This study aimed at reporting the processes adopted for the stabilisation, decontamination, rehabilitation and release of an oiled olive ridley sea turtle (Lepidochelys olivacea), rescued alive on September 23, 2019, at Santa Rita Beach, Extremoz municipality, Rio Grande do Norte, Brazil. Its entire body was covered by oil. At first, the animal was mechanically dry cleaned using a gauze soaked in mineral oil in the keratinised regions (carapace and plastron) and a gauze soaked in vegetable oil was used on the oral, nasal, ocular, and cloacal mucous membranes. The second stage of the oil removal consisted of washing the animal with heated pressurised water (39 °C) and a neutral detergent using a soft foam sponge. The animal received treatment with antitoxins, antibiotics, analgesics, gastrointestinal protectors, and fluid therapy. After 7 days of treatment, the blood count showed that all the parameters were within the normal range. The oil cleaning process and the therapeutic protocol used in the rehabilitation of the olive ridley sea turtle were efficient.


Mammalia ◽  
2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Isabela Silva Bellizzi ◽  
Shirley Seixas Pereira da Silva ◽  
Patrícia Gonçalves Guedes ◽  
Juliana Cardoso de Almeida

Abstract Original data on diet, internal anatomy, morphology, reproduction, and parasites of Chiroderma doriae vizottoi from the State of Ceará (Brazil) are presented. Intact and crushed seeds of Solanum rhytidoandrum and scales of Lepidoptera were detected in the gastrointestinal tract and feces. Observation of internal organs did not reveal any abnormalities; the intestines were, on average, 11 times longer than the animal’s body length. Reproduction seems to occur in the rainy season. The association with an ectoparasite, Mastoptera sp. (Diptera, Streblidae), was recorded.


2014 ◽  
Vol 58 (10-11-12) ◽  
pp. 733-741 ◽  
Author(s):  
Patsy Gómez-Picos ◽  
Itzel Sifuentes-Romero ◽  
Horacio Merchant-Larios ◽  
Rubí Hernández-Cornejo ◽  
Verónica Díaz-Hernández ◽  
...  

2011 ◽  
Vol 38 (1) ◽  
pp. 136-163 ◽  
Author(s):  
Emilia Rota

The paper reviews knowledge on earthworms from early classical times to the end of the seventeenth century. The Aristotelian view that these “imperfect” animals developed spontaneously from mud and lacked internal organs except the gut was not challenged until the late Renaissance but, by the end of the 1600s, it was overthrown. Aldrovandi and Mouffet presented field observations of sexual reproduction and specific habitat requirements. Willis demonstrated the complex internal anatomy of an earthworm. Finally Redi, based on numberless dissections, showed the existence of variations on that basic anatomical plan, which anyway remained distinct from that of parasitic worms. Through a series of controlled laboratory tests, Redi also proved that earthworms have a physiology of their own and are most sensible to water loss. In those same years, Swammerdam investigated earthworm cocoons nursing them in his room, and Tyson discovered earthworms’ hermaphroditism. Two significant interpretations of earthworm's locomotion, by Fabrici ab Aquapendente and Borelli, also belong to this period, but were both short-lived in their influence. An awareness of the ecological role of earthworms in pedogenesis and soil fertility did not emerge until the late eighteenth century.


2013 ◽  
Vol 5 ◽  
pp. 119 ◽  
Author(s):  
Laura Brenes Chaves ◽  
Alexis Berrocal ◽  
Ana I. Meneses ◽  
Carlos Jiménez Sánchez ◽  
Carlos M. Orrego Vásquez

Sea turtle fibropapillomatosis is an emerging disease characterized by a proliferation of cutaneous papillomas, fibromas, and fibropapillomas and occasional visceral fibromas. This paper aims to contribute tothe etiology of fibropapillomatosis in olive ridley sea turtles (Lepidochelys olivacea) nesting in OstionalNational Wildlife Refuge. Twenty six olive ridley turtles with cutaneous fibropapilloma were sampled and24 healthy olive ridley turtles served as controls. Biopsies were taken of the cutaneous tumors in sick seaturtles, as well as skin biopsies from control subjects, and blood samples were collected from all turtles.Tumorous samples and skin samples were microscopically analyzed in order to differentiate the histologicalfactors resulting from the disease pathogenesis, where the main histological findings were papillaryepidermal hyperplasia, orthokeratotic hyperkeratosis, spirorchid-like eggs in the dermis, and eosinophilic cytoplasmic inclusion. Hematology and blood chemistry studies were conducted on blood samples, andMCHC, heterophils, lymphocytes, monocytes, AST, total protein, albumin and globulin values were significantlydifferent between healthy turtles and turtles with tumors. A PCR test was also conducted in thesamples to determine the presence of herpesvirus and papillomavirus as possible etiologic agents, wherethe papilomavirus was absent in all the samples, while the herpesvirus was present in 69.23% of the tumors,this being the most probable etiological agent of fibropapillomatosis.La fibropapilomatosis de la tortuga marina es una enfermedad emergente caracterizada por múltiples papilomas, fibromas y fibropapilomas cutáneos, así como ocasionales fibromas viscerales. El presente trabajo tiene como objetivo contribuir a la etiología de la fibropapilomatosis en la tortuga lora (Lepidochelys olivacea) que anida en el Refugio Nacional de Vida Silvestre Ostional. Se muestrearon 26 tortugas lora con fibropapilomas cutáneos y 24 tortugas lora sanas que sirvieron de control. Se tomaron biopsias excisionales de los tumores cutáneos de las tortugas enfermas y biopsias de piel de las tortugas control, además se recolectaron muestras de sangre de todas las tortugas. Las muestras tumorales y de piel se analizaron microscópicamente para diferenciar los factores histológicos que resultan de la patogénesis de la enfermedad, donde los hallazgos histopatológicos principales en los fibropapilomas fueron: crecimiento papiliforme, hiperqueratosis ortoqueratótica, huevos de parásitos similares a espiróquidos en la capa dérmica e inclusión eosinofílica citoplasmática. A las muestras de sangre se les realizó análisis hematológico y de química sanguínea, donde los valores de CHCM, heterófilos, linfocitos, monocitos, AST, proteínas totales, albúmina y globulinas resultaron significativamente diferentes entre las tortugas sanas y las tortugas con tumores. Se realizó PCR a las muestras para determinar la presencia de genoma de herpesvirus y papilomavirus como posibles agentes etiológicos, donde el papilomavirus estuvo ausente en la totalidad de las muestras, mientras el virus Herpes se presentó en el 69.23% de los tumores posicionándose como el posible agente etiológico de la enfermedad.


Author(s):  
Adrian Florin GAL ◽  
Roxana CORA ◽  
Flaviu TᾸBᾸRAN ◽  
Andras NAGY ◽  
Cornel CǍTOI

Forensic veterinary medicine tends to gain increasing importance in veterinary pathology, the number of such cases being still limited. The paper describes cases with multiple cutaneous wounds, with emphasis on bite-mark analysis. The material was represented by corpses (deer and dogs) brought by local authorities to Faculty of Veterinary Medicine Cluj-Napoca (Romania), along with preliminary reports issued by the competent organs. A complete medicolegal survey was done. The cases analyzed by us displayed numerous usually symmetrical (opposed) wounds, with angular margins and elongated aspect (somehow specific to bite wounds). All cases assessed presented laceration of the skin from the subcutaneous tissue, rupture of muscle and (in some cases) perforation of internal organs. The features of the bite-marks described were typical for carnivores. Depending on the species involved, the topography of lesions varied. In deer, the ventrolateral area of the neck and the lumbar/dorsal region were more commonly affected. The distribution suggests the hunting instinct of carnivores by trying to induce suffocation of the prey. In the analyzed dog corpses, the most affected areas were the auricular, limbs, sternal region, abdominal region. Investigation of bite-marks is an evolving field of forensic veterinary science and remains a provocation for veterinary pathologists.


2002 ◽  
Vol 129 (1) ◽  
pp. 20-26 ◽  
Author(s):  
L.C Torres Maldonado ◽  
A Landa Piedra ◽  
N Moreno Mendoza ◽  
A Marmolejo Valencia ◽  
A Meza Martı́nez ◽  
...  

2019 ◽  
Vol 38 (2) ◽  
pp. 153
Author(s):  
Il-Hun Kim ◽  
Chang-Ho Yi ◽  
Jeong-Hyun Lee ◽  
Daesik Park ◽  
In-Young Cho ◽  
...  

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