On the allometry of long bones in dogs (Canis familiaris).

abstract：:Larval and juvenile air breathing fish may experience nocturnal and/or seasonal aquatic hypoxia. Yet, whether hypoxia induces respiratory developmental plasticity in larval air breathing fish is uncertain. This study predicted that larvae of two closely related anabantid fish-the facultative air breather the Siamese f...

journal_title：Journal of morphology

authors： Mendez-Sanchez JF,Burggren WW

更新日期：2019-02-01 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 ultrastructure of five epithelial cellular types is described. (1) Absorptive-storing cells possess a striated border and accumulate lipids and glycogen. They also contain an apical multivesicular complex and numerous membrane-bound PAS-positive granules of unknown significance. (2) Zymogenic cells contain numerou...

journal_title：Journal of morphology

authors： Martinez A,Villaro AC,Sesma P

更新日期：1989-11-01 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：:The vertebrate head as a major novelty is directly linked to the evolutionary success of the vertebrates. Sequential information on the embryonic pattern of cartilaginous head development are scarce, but important for the understanding of its evolution. In this study, we use the oriental fire bellied toad, Bombina ori...

journal_title：Journal of morphology

authors： Lukas P,Olsson L

更新日期：2020-06-01 00:00:00

abstract：:Embryos of goodeid fishes develop to term within the ovarian lumen, where they undergo considerable increase in weight due to transfer of maternal nutrients across a trophotaenial placenta. The placenta consists of an embryonic component, the trophotaeniae, and a maternal component, the ovarian lining. The latter was ...

journal_title：Journal of morphology

authors： Lombardi J,Wourms JP

更新日期：1985-06-01 00:00:00

abstract：:Micrabaciids are solitary, exclusively azooxanthellate deep-sea corals belonging to one of the deepest-living (up to 5,000 m) scleractinian representatives. All modern micrabaciid taxa (genera: Letepsammia, Rhombopsammia, Stephanophyllia, Leptopenus) have a porous and often very fragile skeleton consisting of two main...

journal_title：Journal of morphology

authors： Janiszewska K,Stolarski J,Benzerara K,Meibom A,Mazur M,Kitahara MV,Cairns SD

更新日期：2011-02-01 00:00:00

abstract：:The structure and crystallography of the internal shell of the pulmonate gastropod slug Limax maximus were studied at the levels of light and scanning electron microscopy, revealing patterns of shell ontogeny and morphogenesis. The calcified portion of the slightly convex ovoid shell is composed of a single palisade l...

journal_title：Journal of morphology

authors： Furbish DR,Furbish WJ

更新日期：1984-06-01 00:00:00

abstract：:The morphology of ctenostome bryozoans remains little investigated with only few species having been subject to more detailed studies. From all the seven main different superfamilies, only few representatives have been studied. The superfamily Arachnidioidea has particularly been neglected concerning detailed morpholo...

journal_title：Journal of morphology

authors： Schwaha T,De Blauwe H

更新日期：2020-12-01 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：:To elucidate the cellular mechanism underlying the growth of the peritoneal cover of the gut sinus and the heart in the polychaete Arenicola marina, cellular organization of these structures and proliferative potential of their cells were investigated using electron microscopy and electron microscopic autoradiography....

journal_title：Journal of morphology

authors： Martynova MG,Chaga OY

更新日期：2002-12-01 00:00:00

abstract：:Mature spermatozoa from spermathecae of founding queens were obtained from 5 species of ants, representing the major subfamilies Myrmicinae (Acromyrmex versicolor, Crematogaster sp.) and Dolichoderinae (Tapinoma sessile, Conomyrma insana, Conomyrma wheeleri). The ultrastructure of ant spermatozoa has many features in ...

journal_title：Journal of morphology

authors： Wheeler DE,Crichton EG,Krutzsch PH

更新日期：1990-12-01 00:00:00

abstract：:Allografts of skin were observed in Chelydra serpentina. The response to these grafts was modified by a previous transplantation of a limb bud at an early embryonic stage. When the same donor was used for all transplants, the first skin graft was accepted by the host. A second skin graft, however, was rejected at abou...

journal_title：Journal of morphology

authors： Yntema CL

更新日期：1974-12-01 00:00:00

abstract：:During ontogeny, the apical and basal components of dicamptodontid teeth exhibit three major developmental stages: nonpedicellate, subpedicellate, and pedicellate. Premetamorphic larvae tend to have nonpedicellate teeth, incompletely or recently metamorphosed individuals tend to have subpedicellate teeth, and fully tr...

journal_title：Journal of morphology

authors： Beneski JT Jr,Larsen JH Jr

更新日期：1989-02-01 00:00:00

abstract：:Annual fish development differs from that of other teleosts because a phase of blastomere dispersion-reaggregation spatially and temporally separates epiboly from embryogenesis. The fate of dispersed blastomeres was assessed in diblastodermic eggs of the annual fishes Cynolebias whitei and C. nigripinnis. In typical t...

journal_title：Journal of morphology

authors： Carter CA,Wourms JP

更新日期：1993-03-01 00:00:00

abstract：:The Antarctic snailfish Paraliparis devriesi (Liparididae) occupies an epibenthic habitat at a depth of 500-650 m in the subzero waters of McMurdo Sound, Antarctica. Although lacking a swim bladder, this species is neutrally buoyant through the combined effects of reduced skeletal ossification and expansion of a water...

journal_title：Journal of morphology

authors： Eastman JT,Hikida RS,Devries AL

更新日期：1994-04-01 00:00:00

abstract：:The stomach of decapods is a complex organ with specialized structures that are delimited by a cuticle. The morphology and ontogeny of the stomach are largely described, but few studies have focused on the morphology of its cuticle. This study examined the morphology of the stomach cuticle of cardiac sacs, gastric mil...

journal_title：Journal of morphology

authors： Castejón D,Rotllant G,Ribes E,Durfort M,Guerao G

更新日期：2019-03-01 00:00:00

abstract：:In spite of the growing interest in rodents with subterranean activity in general and the spalacids (Spalacidae) in particular, little is known about the biology of most members of this clade, such as the Chinese bamboo rat (Rhizomys sinensis). Here, we analyzed the ear morphology of R. sinensis with respect to hearin...

journal_title：Journal of morphology

authors： Pleštilová L,Hrouzková E,Burda H,Šumbera R

更新日期：2016-05-01 00:00:00

abstract：:Salamanders possess kidneys with two distinct regions: a caudal pelvic portion and cranial genital portion. Nephrons of the pelvic region are responsible for urine formation and transport. Nephrons of the genital region transport sperm from testes to Wolffian ducts; however, nephrons of the genital region possess all ...

journal_title：Journal of morphology

authors： Hartley J,Gribbins KM,Siegel DS

更新日期：2019-10-01 00:00:00

abstract：:Sixty-seven specimens of the common North Atlantic asteroid, Asterias vulgaris, were collected at seasonal intervals over a 2-year period and their testes observed with both light and electron microscopy. In the germinal epithelium, a predictable series of interactions between versatile somatic cells and germinal cell...

journal_title：Journal of morphology

authors： Walker CW

更新日期：1980-10-01 00:00:00

abstract：:The antennal circulatory organ of Periplaneta americana and Blaberus craniifer was investigated by light and electron microscopy. This organ consists of two pulsatile ampullae located near the antennal base which are interconnected by a large transverse muscle and associated blood vessels which run into the antennae. ...

journal_title：Journal of morphology

authors： Pass G

更新日期：1985-08-01 00:00:00

abstract：:Bats are distributed worldwide from tropical to temperate regions. Despite their wide geographical radiation and advances in studies using evolutionary approaches, aspects related to the reproduction of these animals remain poorly explored, especially those related to the male reproductive accessory glands (RAGs). Thu...

journal_title：Journal of morphology

authors： Santos RTS,Pires LRM,Albernaz ESS,Andrade CS,Santiago CS,Morielle-Versute E,Taboga SR,Beguelini MR

更新日期：2018-02-01 00:00:00

abstract：:The dorsal fin is one of the most varied swimming structures in Acanthomorpha, the spiny-finned fishes. This fin can be present as a single contiguous structure supported by bony spines and soft lepidotrichia, or it may be divided into an anterior, spiny dorsal fin and a posterior, soft dorsal fin. The freshwater fish...

journal_title：Journal of morphology

authors： Weickhardt AF,Feilich KL,Lauder GV

更新日期：2017-12-01 00:00:00

abstract：:Most anatomical and physiological studies of the sauropsid heart have focused on species with extraordinary physiologies, and detailed anatomical descriptions of hearts from sauropsids with more common physiologies are therefore warranted. Here, we present a comprehensive study of the cardiac anatomy of the South Amer...

journal_title：Journal of morphology

authors： Jensen B,Abe AS,Andrade DV,Nyengaard JR,Wang T

更新日期：2010-09-01 00:00:00

abstract：:Atretic follicles of the ovary of the Indian pied myna (Sturnus contra contra) were studied in birds collected each month throughout the year. Histological examination included histochemical techniques for 3β-hydroxy-steroid dehydrogenase (3β-HSDH) and for lipids. Atretic follicles were mainly of two types: nonburstin...

journal_title：Journal of morphology

authors： Gupta SK,Maiti BR

更新日期：1986-12-01 00:00:00

abstract：:In Japan Pseudopythina tsurumaru is an up to 10.8 mm-long commensal of the burrowing sea cucumber Protankyra bidentata, whereas in Hong Kong the same species is smaller and associated with the crab Hexapus anfractus, itself a commensal of P. bidentata. Japanese P. tsurumaru is a hermaphrodite tending towards protogyny...

journal_title：Journal of morphology

authors： Lützen J,Jespersen A,Takahashi T,Kai T

更新日期：2004-10-01 00:00:00

abstract：:Amphisabenia is a group of squamates adapted for a fossorial lifestyle. The skull is the animal's the main digging tool, and can present one of four principal shapes. The shovel-headed shape is considered to be the most specialized for digging. The South American genus Leposternon presents a shovel-headed morphotype, ...

journal_title：Journal of morphology

authors： Hohl LSL,Barros-Filho JD,Rocha-Barbosa O

更新日期：2018-11-01 00:00:00

abstract：:Andean frogs of the genus Telmatobius occur at high elevations, they have an aquatic mode of life and large tadpoles. There are more than 60 species that closely resemble one another and have low values of genetic divergence. However, the skeleton, particularly the cranium, is interspecifically variable with respect t...

journal_title：Journal of morphology

authors： Barrionuevo JS

更新日期：2018-09-01 00:00:00

abstract：:Cover illustration. Mayetiola destructor is a major pest of wheat in Europe, North Africa and North America. In this issue of the Journal of Morphology, Schneeberg et al. (pp. 1299-1311) investigate the adult head structures of the cecidomyiid fly and compared their findings with evolutionarily less successful familie...

journal_title：Journal of morphology

authors： Schneeberg K,Polilov A,Harris MO,Beutel RG

更新日期：2013-11-01 00:00:00

abstract：:Sexual dimorphism in the distribution of antennal sense organs is common among adults of the genus Periplaneta. In three out of the four strains of Periplaneta americana examined, adult males had more contact chemoreceptros than females. In the fourth strain of P. americana and in P. australasiae, P. brunnea, P. fulig...

journal_title：Journal of morphology

authors： Schafer R,Sanchez TV

更新日期：1976-06-01 00:00:00