Survival of skin allografts following embryonic limb bud transplants in the turtle, Chelydra serpentina.

abstract：:Postembryonic skeletal ontogeny of the pelobatid frog Scaphiopus intermontanus is described based on a developmental series of cleared-and-stained, whole-mount specimens. The focus is on laboratory-reared individuals fed a herbivorous diet as larvae. Although there is variation in the timing of ossification of individ...

journal_title：Journal of morphology

authors： Hall JA,Larsen JH Jr

更新日期：1998-11-01 00:00:00

abstract：:The lungs of the New Caldeonian gecko Rhacodactylus leachianus were examined by means of gross dissection and light and electron microscopy. This tropical species, which is the largest living gecko, possesses two simple, single-chambered lungs. Right and left lungs are of similar size and shape. The lung volume (27.2 ...

journal_title：Journal of morphology

authors： Perry SF,Bauer AM,Russell AP,Alston JT,Maloney JE

更新日期：1989-01-01 00:00:00

abstract：:External features of the egg, developing embryo, and first instar nymph of Kamimuria tibialis are described. The embryonic development from the germ disc to the full-grown embryo is divided into 12 stages. The saclike embryonic rudiment is formed by the bending and folding of the germ disc. The embryo first elongates ...

journal_title：Journal of morphology

authors： Kishimoto T,Ando H

更新日期：1985-03-01 00:00:00

abstract：:Feeding mechanics of vertebrates depend on physical constraints of the surrounding media, water or air. Such functions are inseparably combined with form. The aim of this study is to show this linkage for the pleurodiran freshwater turtle Pelusios castaneus and, additionally, to point out the major functional and biom...

journal_title：Journal of morphology

authors： Lemell P,Beisser CJ,Weisgram J

更新日期：2000-05-01 00:00:00

abstract：:Three lineages of cartilaginous fishes have independently evolved filter feeding (Lamniformes: Megachasma and Cetorhinus, Orectolobiformes: Rhincodon, and Mobulidae: Manta and Mobula); and the structure of the branchial filters is different in each group. The filter in Rhincodon typus has been described; species withi...

journal_title：Journal of morphology

authors： Paig-Tran EW,Kleinteich T,Summers AP

更新日期：2013-09-01 00:00:00

abstract：:Ultrastructural observations and glyoxilic acid-induced fluorescence of catecholamines indicate that tracts of axons lie at the base of the ciliary bands and run throughout their length in bipinnaria and brachiolaria larvae of Pisaster ochraceus. Two types of nerve cells occur at regular intervals within the ciliary b...

journal_title：Journal of morphology

authors： Burke RD

更新日期：1983-10-01 00:00:00

abstract：:The orientation of the semicircular canals of the inner ear in the skull of vertebrates is one of the determinants of the capacity of this system to detect a given rotational movement of the head. Past functional studies on the spatial orientation of the semicircular canals essentially focused on the lateral semicircu...

journal_title：Journal of morphology

authors： Coutier F,Hautier L,Cornette R,Amson E,Billet G

更新日期：2017-05-01 00:00:00

abstract：:The process of coelomic pouch formation in Pisaster ochraceus was studied with light microscopy, transmission and scanning electron microscopy and time-lapse cinemicrography as well as with the drug cytochalasin B. As in most asteroids, the paired coelomic pouches of Pisaster ochraceus are formed from outpocketing of ...

journal_title：Journal of morphology

authors： Crawford BJ,Chia FS

更新日期：1978-07-01 00:00:00

abstract：:The development of diet-induced phenotypic differences in numbers of sensilla on the antennae of the grasshopper Schistocerca americana was studied using the exuviae produced at each molt. This made it possible to follow changes within an individual insect. In the first instar, insects had similar numbers of four sens...

journal_title：Journal of morphology

authors： Chapman RF

更新日期：2002-11-01 00:00:00

abstract：:Several flatfish species exhibit the unusual feature of bilateral asymmetry in prey capture kinematics. One species, Pleuronichthys verticalis, produces lateral flexion of the jaws during prey capture. This raises two questions: 1) How are asymmetrical movements generated, and 2) How could this unusual jaw mechanism h...

journal_title：Journal of morphology

authors： Gibb AC

更新日期：2003-04-01 00:00:00

abstract：:Following a study on the changes occurring in a bdelloid species (Macrotrachela quadricornifera, Rotifera, Bdelloidea) when entering anhydrobiosis, we investigated the changes in morphology, including weight and volume during the transition from the active hydrated to the dormant anhydrobiotic state by scanning electr...

journal_title：Journal of morphology

authors： Ricci C,Caprioli M,Fontaneto D,Melone G

更新日期：2008-02-01 00:00:00

abstract：:An ultrastructural study was carried out on the secretory activity of the ectal mandibular gland in the wasp Polistes dominulus (foundress and worker females as well as males). Secretory activity in foundresses proceeds slowly during hibernation and early spring, becoming prominent in late spring and then falling shar...

journal_title：Journal of morphology

authors： Fortunato A,Turillazzi S,Delfino G

更新日期：2000-04-01 00:00:00

abstract：:Tooth development and replacement in fetal and adult viviparous caecilians (Amphibia: Gymnophiona) are described and analyzed according to current theories of tooth succession. The fetal dentition differs from that of the adult in morphology, position, and function. Teeth are used by fetuses to scrape the oviducal epi...

journal_title：Journal of morphology

authors： Wake MH

更新日期：1976-01-01 00:00:00

abstract：:Light and electron microscopic examination demonstrated two types of non-endocrine agranular cells, cavity boundary cells and stellate cells, in the adenohypophysis of the South American lungfish, Lepidosiren paradoxa. The cavity boundary cells line the hypophyseal cleft and diverticulum and display few microvilli, oc...

journal_title：Journal of morphology

authors： Chiba A,Oka S,Honma Y,Ishiyama M

更新日期：1991-01-01 00:00:00

abstract：:Swimming crabs of the taxon Portunoidea show specialized, paddle-shaped fifth pereiopods (P5), which play a role in these crabs' ability to swim. In this study, the morphology of the fifth pereiopod in swimming and non-swimming crabs was studied in detail and the mobility in the articulations between podomeres was cal...

journal_title：Journal of morphology

authors： Schmidt M,Hazerli D,Richter S

更新日期：2020-12-01 00:00:00

abstract：:Standard transmission electron microscopy (TEM) techniques have been applied to three species of phoronids to describe cytological features of their nervous systems. Four types of neurons have been distinguished by morphological and ultrastructural criteria, mainly involving their kinds of vesicles. Glial cells with c...

journal_title：Journal of morphology

authors： Fernández I,Pardos F,Benito J,Roldán C

更新日期：1996-12-01 00:00:00

abstract：:The ultrastructure of a well studied insect chemosensory unit is presented in this report. Two separate lumina are present in this chemosensory unit, the trichogen and sensillar lumina. The fluid within the trichogen lumen exclusively bathes the dendritic terminals, and may be involved with the reception and/or modula...

journal_title：Journal of morphology

authors： Felt BT,Vande Berg JS

更新日期：1976-11-01 00:00:00

abstract：:It is well established that the capacity for teeth to differentiate "in vitro" depends upon: a) the age of the embryonic rudiments at the time of excision and b) the number of cells within each tissue type which are capable of differentiating into organ culture. This paper studies ultrastructural aspects of tooth buds...

journal_title：Journal of morphology

authors： Lemus D,Paz de la Vega Y,Fuenzalida M,Illanes J

更新日期：1980-09-01 00:00:00

abstract：:The larval development of "conchostracans" has received only scattered attention. Here I present the results of a study on the larval (naupliar) development and the metamorphosis of Lynceus brachyurus, a member of the bivalved branchiopod order the Laevicaudata. Lynceus brachyurus is the only species of the "Conchostr...

journal_title：Journal of morphology

authors： Olesen J

更新日期：2005-05-01 00:00:00

abstract：:According to the current opinion, lymph-heart striated muscle represents a specialized type of skeletal muscles in frogs. Here, we studied muscle fibers in mechanically damaged lymph hearts during the first postoperative week using electron-microscopic autoradiography. We present evidence that both, the satellite cell...

journal_title：Journal of morphology

authors： Krylova MI,Bogolyubov DS

更新日期：2015-12-01 00:00:00

abstract：:External and internal structures of the head of adults of Clambus are described and illustrated in detail. The results are compared with structural features found in the clambid genus Calyptomerus, in representatives of other scirtoid families, and also in species of other coleopteran suborders, notably Myxophaga. The...

journal_title：Journal of morphology

authors： Anton E,Yavorskaya MI,Beutel RG

更新日期：2016-05-01 00:00:00

abstract：:The gross and microscopic anatomy of epidermal glands has been studied in laboratory maintained tokays (Gekko gecko), and house geckos (Hemidactylus bowringii) captured from the wild throughout the year. Annual testicular activity in the house gecko has also been studied. While no significant differences in glandular ...

journal_title：Journal of morphology

authors： Chiu KW,Maderson PF

更新日期：1975-09-01 00:00:00

abstract：:Larval salivary gland cells of seven Drosophila species from the melanogaster group were studied during the early third-instar period. Similar cytoplasmic organization was seen in both the distal and proximal parts of the gland. The cytoplasm contained a large number of free ribosomes, but only a few rough endoplasmic...

journal_title：Journal of morphology

authors： Thomopoulos GN

更新日期：1988-10-01 00:00:00

abstract：:Mites of the genus Veigaia are common gamasid inhabitants of forest litter. They engage in the peculiar reproductive strategy of podospermy which, along with other morphological and behavioral adaptations, involves modification of the chelicerae of the relatively rare males into gonopods. Each movable digit is provide...

journal_title：Journal of morphology

authors： Di Palma A,Alberti G,Nuzzaci G,Krantz GW

更新日期：2006-02-01 00:00:00

abstract：:Two types of sperm are produced in the silkworm, Bombyx mori. Nucleate eupyrene sperm is an ordinary sperm that contributes to fertilization, while anucleate apyrene sperm is considered to play important roles in assisting eupyrene sperm. At the very late stage of spermatogenesis, a phenomenon called "peristaltic sque...

journal_title：Journal of morphology

authors： Sahara K,Kawamura N

更新日期：2004-01-01 00:00:00

abstract：:Barnacle cypris larvae show high morphological variation in the organs used in search of and attaching to a substratum. This variation may represent adaptation to the habitat of the species. Here, we studied SEM level morphologies of cypris antennular sensory and attachment organs in a deep-sea vent endemic species (N...

journal_title：Journal of morphology

authors： Yorisue T,Chan BK,Kado R,Watanabe H,Inoue K,Kojima S,Høeg JT

更新日期：2016-05-01 00:00:00

abstract：:Regional variation in the vertebral column of several species of salamanders (families Ambystomatidae, Salamandridae and Plethodontidae) is analyzed. Measurements of three dimensions, centrum length, prezygapophyseal width, and transverse process length, provide the data. Ontogenetic, interspecific, intergeneric and i...

journal_title：Journal of morphology

authors： Worthington RD,Wake DB

更新日期：1972-07-01 00:00:00

abstract：:Topological and histological analyses of Mabuya mabouya embryos at different developmental stages showed an extraembryonic membrane sequence as follows: a bilaminar omphalopleure and progressive mesodermal expansion around the whole yolk sac at gastrula stages; mesodermal split and formation of an exocoelom in the ent...

journal_title：Journal of morphology

authors： Jerez A,Ramírez-Pinilla MP

更新日期：2003-11-01 00:00:00

abstract：:Profiles with all orientations have been used to visualize the 3D structure of ivory from tusks of elephant, mammoth, walrus, hippopotamus, pig (bush, boar, and warthog), sperm whale, killer whale, and narwhal. Polished, forming, fractured, aged, and stained surfaces were prepared for microscopy using epi-illumination...

journal_title：Journal of morphology

authors： Locke M

更新日期：2008-04-01 00:00:00

abstract：:Fine structural changes in mitochondrial morphology pertaining to size, number and growth were examined in flight muscles of normal and experimentally dewinged male Drosophila melanogaster ranging up to 26 days of age. In the normal winged flies, the number of mitochondria decreases during the first week of adult lif...

journal_title：Journal of morphology

authors： Sohal RD

更新日期：1975-03-01 00:00:00