Abstract:
:The larvae of Halicryptus spinulosus bear six rings of sensory/ locomotory appendages. Twelve pedicellate flosculi, 6 dorsal and 6 ventral, are associated with the neck-lorica junction. Newly described are two rows of 4-5 flosculi present on the dorsal and ventral plates, and 2 tubuli located on each dorsolateral and ventrolateral plate near their junction with the midlateral plate. The ultrastructure of all organ systems is described. The multilayered lorica differs significantly from that of other priapulids. The anterior fourth of the lorica is not underlain by epidermal cells. At the junction of the introvert and neck are a series of adhesive tubuli that have groups of secretory cells basally. A gland is described at the junction of the fore- and midgut.
journal_name
J Morpholjournal_title
Journal of morphologyauthors
Storch V,Higgins RPdoi
10.1002/jmor.1052100207subject
Has Abstractpub_date
1991-11-01 00:00:00pages
175-194issue
2eissn
0362-2525issn
1097-4687journal_volume
210pub_type
杂志文章abstract::Studies of echinoid microscopic anatomy over the last two centuries have created a number of inaccuracies and mistakes that have accumulated in the descriptions of the intricate organization of the coelomic system of Echinoidea. To clarify the situation, we reconstructed the axial complex and radial complex of the ech...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20811
更新日期:2018-06-01 00:00:00
abstract::Pheromone systems from seven species of noctuid are examined. Much of the structure of scales from the wings and/or the abdomen is interpreted as a modification for secretion or release of a pheromone. Scales with an extremely complex surface provide a large evaporation surface, while those connected to secretory cell...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051460107
更新日期:1975-05-01 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
pub_type: 杂志文章
doi:10.1002/jmor.1051440407
更新日期:1974-12-01 00:00:00
abstract::Intraspecific trends in freshwater mussel (unionoid) shells that are consistently associated with differences in the mussels' sex and/or parasitic infestation can potentially be used to reconstruct sex ratios or parasitic levels of modern and ancient unionoid populations. In contrast to morphological patterns within m...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10990
更新日期:2011-11-01 00:00:00
abstract::The oviducts of 24 tortoises (Gopherus polyphemus) were examined using histological techniques and scanning electron microscopy to determine endometrial morphology. Measurements of endometrial characteristics (epithelial cell height, cilia length, thickness of endometrial glandular layer, and glandular diameter) in th...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052040310
更新日期:1990-06-01 00:00:00
abstract::The orbital Harderian gland of the common tree shrew (Tupaia glis) was investigated at the macroscopic and microscopic levels. In the glands of both sexes only one acinar cell type was found. The cell is characterized by the presence of numerous lipid vacuoles of variable size and by a small number of PAS-positive, el...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10066
更新日期:2003-03-01 00:00:00
abstract::In viviparous, teleost fish, with postfertilization maternal nutrient provisioning, embryonic structures that facilitate maternal-fetal nutrient transfer are predicted to be present. For the family Poeciliidae, only a handful of morphological studies have explored these embryonic specializations. Here, we present a co...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20745
更新日期:2017-12-01 00:00:00
abstract::Bone is a dynamic tissue adapting to loading according to "Wolff's law of bone adaptation." During very early life, however, such a mechanism may not be adequate enough to adapt to the dramatic change in environmental challenges in precocial species. Their neonates are required to stand and walk within hours after bir...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20548
更新日期:2016-07-01 00:00:00
abstract::As part of a study of ulcer formation and healing, regeneration of colonic mucosa in rats was studied following placement of a surgical lesion. Alterations in mucosubstances and connective tissue were examined and their possible significance discussed. The sequence of events in healing was: 1) The mucosa adjacent to t...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051630208
更新日期:1980-02-01 00:00:00
abstract::Slender blindsnakes (Leptotyphlopidae) are known to use a unique feeding mechanism that involves rapid flexions of the tooth-bearing lower jaw. However, the morphology of the leptotyphlopid jaw apparatus has remained poorly studied due to the extremely small size of these snakes. Here I present a detailed description ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10414
更新日期:2006-04-01 00:00:00
abstract::Changes in size frequency distribution of extrastromal follicles, atretric follicles (AF), and the number of oogonia, oocytes, and primordial follicles in the ovaries are studied in Calotes versicolor during its annual reproductive cycle. Extrastromal follicles were graded into stages I to VI based on their diemeter. ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052160102
更新日期:1993-04-01 00:00:00
abstract::Two different patterns of wing venation are currently supposed to be present in each of the three orders of Paraneoptera. This is unlikely compared with the situation in other insects where only one pattern exists per order. We propose for all Paraneoptera a new and unique interpretation of wing venation pattern, assu...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.11036
更新日期:2012-05-01 00:00:00
abstract::During the long starvation period (November to June) of the lizard (Varanus exanthematicus), pancreatic B cells undergo profound modification. The degeneration of beta granules observed in electron microscopy appears correlated with the diminution of the immunoreactive insulin-like content of the pancreas. The analogy...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051800302
更新日期:1984-06-01 00:00:00
abstract::To our knowledge, this paper presents the first description of neuroendocrine complexes in invertebrates. Neuroendocrine complexes have been identified in the lamina propria of the snail gut by light microscopy using Giemsa-stained, deplasticized sections and by electron microscopy. Silver impregnations and immunocyto...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051990307
更新日期:1989-03-01 00:00:00
abstract::The lizard tail is well known for its ability to autotomize and regenerate. Physical contact of the tail by a predator may induce autotomy at the location at which the tail is grasped, and upon detachment the tail may undergo violent, rapid, and unpredictable movements that appear to be, to some degree, regulated by c...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20269
更新日期:2014-09-01 00:00:00
abstract::The progression of ovarian follicular development in the Northern Alligator Lizard has been documented ultrastructurally and by enumeration of cells, with a focus on changes in the granulosa component of the follicle. The pattern of cellular differentiation of the granulosa entails, as in other lizards, the transforma...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051920205
更新日期:1987-05-01 00:00:00
abstract::A phylogenetic survey is a powerful approach for investigating the evolutionary history of a morphological characteristic that has evolved numerous times without obvious functional implications. Restricted gill openings, an extreme modification of the branchiostegal membrane, are an example of such a characteristic. W...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20371
更新日期:2015-06-01 00:00:00
abstract::The use of hormone replacement to support limb regeneration in hypophysectomized newts has been the subject of many investigations. Growth hormone, as well as prolactin (PL) in combination with exogenously supplied thyroxine, have all been shown to he effective. However, the bovine growth hormone used to support limb ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051670109
更新日期:1981-01-01 00:00:00
abstract::Exceptional variability in the shell of the pancake tortoise Malacochersus tornieri, both in the keratinous surficial scutes and the underlying bones, in addition to its remarkably fenestrated bony shell are unique among tortoises. Based on 14 individuals of different sizes and ages, the observed variation in M. torni...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20640
更新日期:2017-03-01 00:00:00
abstract::The study of semithin (1 μ in thickness) and thin sections of Epon-embedded material reveals that Malpighian tubules of Formica polyctena are composed of a single cellular type throughout their length. No differentiated regions were observed. Ultrastructural traits of the epithelial cells are those of highly metabolic...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052140206
更新日期:1992-11-01 00:00:00
abstract::Correlative studies of luminescent responses, light and electron microscopy of Porichthys photophores during development were conducted. The photophores differentiate as an outgrowth of the basal cell layer of the epidermis, from which they delaminate into the dermis. Reflector cells are formed from dermal fibroblasts...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051510305
更新日期:1977-03-01 00:00:00
abstract::The cytoarchitecture of nuclei in the preoptic area, ventral thalamus, dorsal thalamus, epithalamus, hypothalamus, posterior tuberculum, synencephalon, and pretectum and the accessory optic nuclei was analyzed in a perciform teleost, the sea bass Dicentrarchus labrax, by using serial sections stained with cresyl-viole...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/1097-4687(200103)247:3<229::AID-JMOR1014>3
更新日期:2001-03-01 00:00:00
abstract::Cyprinids constitute the largest fish family and are characterized by their pharyngeal teeth. The masticatory mechanism is still poorly understood. The complex of structures that determine the movements of pharyngeal teeth and chewing pad in the carp (Cyprinus carpio L.) is analyzed. Activities in 16 head muscles of a...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051720208
更新日期:1982-05-01 00:00:00
abstract::Using immunohistochemical labeling against acetylated a-tubulin and serotonin in combination with confocal laser scanning microscopy and 3D-reconstruction, we investigated the temporary freshwater pond inhabitant Branchinella sp. (Crustacea: Branchiopoda: Anostraca) for the first time to provide detailed data on the d...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20585
更新日期:2016-11-01 00:00:00
abstract::The structure of the thumus in adult specimens of a marine teleost, the cling fish Sicyases sanguineus, has been studied by light and transmission electron microscopy. Most cling fishes have an outer thymus located beneath the opercular epithelium. A few of them, however, have a large inner thymus besides a poorly dev...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051770103
更新日期:1983-07-01 00:00:00
abstract::The recent discovery of a plethodontid salamander, Karsenia koreana, in Korea challenged our understanding of the biogeographic history of the family Plethodontidae, by far the largest family of salamanders, which otherwise is distributed in the New World with a few European species. Molecular studies suggest that Kar...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10816
更新日期:2010-05-01 00:00:00
abstract::The colugos, or flying lemurs (Dermoptera), are arboreal gliding mammals that are commonly grouped with tree-shrews (Scandentia) and Primates in the superorder Euarchonta. However, little is known about the head and neck muscles of these gliding mammals. This raises difficulties for the discussion of not only the func...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10666
更新日期:2009-01-01 00:00:00
abstract::The appearance, cellular distribution, and changes of sugar residues during tooth development in adults of the polyphyodont, Liolaemus gravenhorsti, were investigated by using horseradish-peroxidase-conjugate lectins (lectin-HRP). With Con A (Canavalia ensiformis), the ameloblasts (late bell stage) show granular supra...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052220309
更新日期:1994-12-01 00:00:00
abstract::Rickettsiae-like structures were found in the salivary gland cells of Drosophila auraria during different larval and prepupal developmental stages, from the early 3rd instar up to 14 hr after spiracle inversion. These microorganisms are surrounded by a membrane, are constantly intracellular, and occur singly or in gro...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052070104
更新日期:1991-01-01 00:00:00
abstract::The apical area of larvae of four primitive pulmonate species was investigated by means of serial ultrathin and light microscope sections. Cephalic sensory organs (CSOs) were found in the larvae of Onchidium cf. branchiferum (Onchidiidae) and Laemodonta octanfracta (Ellobiidae), while no trace of the organ was present...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1076
更新日期:2002-01-01 00:00:00