Arrangement of accessory cells and nematocytes bearing mastigophores in the tentacles of the cubozoan Chironex fleckeri.

abstract：:The abdominal cerci of the wood cricket, Nemobius sylvestris, are covered by a variety of hair-like sensilla that differ in length, thickness, and articulation. Fillings from the cercal nerves with cobalt chloride and fluorescent dyes revealed the projection of sensory axons into the terminal abdominal ganglion of the...

journal_title：Journal of morphology

authors： Insausti TC,Lazzari CR,Casas J

更新日期：2008-12-01 00:00:00

abstract：:Despite the attention squamate lizards have received in the study of digit and limb loss, little is known about limb morphogenesis in pentadactyl lizards. Recent developmental studies have provided a basis for understanding lizard autopodial element homology based on developmental and comparative anatomy. In addition,...

journal_title：Journal of morphology

authors： Leal F,Tarazona OA,Ramírez-Pinilla MP

更新日期：2010-11-01 00:00:00

abstract：:Sperm performance is likely to be an important determinant of male reproductive success, especially when females copulate with multiple males. Understanding sperm performance is therefore crucial to fully understand the evolution of male reproductive strategies. In this study, we examined the repeatability of sperm mo...

journal_title：Journal of morphology

authors： Cramer ER,Laskemoen T,Stensrud E,Rowe M,Haas F,Lifjeld JT,Saetre GP,Johnsen A

更新日期：2015-04-01 00:00:00

abstract：:The plainfin midshipman fish Porichthys notatus has both inter- and intra-sexual dimorphism in the sound-producing (vocal or sonic) muscles attached to the swimbladder wall. The "Type I" and "Type II" male morphs differ in that dramatic structural changes related to sexual maturity occur in the mass, the area of mitoc...

journal_title：Journal of morphology

authors： Brantley RK,Marchaterre MA,Bass AH

更新日期：1993-06-01 00:00:00

abstract：:Branchial food traps are regions of specialized secretory tissue in the tadpole pharynx, where suspended food particles are trapped in mucus. Light and scanning electron microscopy were used to study branchial food traps from larvae of ten anuran families (36 species). Most anuran larvae from "advanced" (suborder Neob...

journal_title：Journal of morphology

authors： Wassersug RJ,Rosenberg K

更新日期：1979-03-01 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

authors： Pradidarcheep W,Asavapongpatana S,Mingsakul T,Poonkhum R,Nilbu-nga S,Somana R

更新日期：2003-03-01 00:00:00

abstract：:The surface of a mature, pelagic C-O sole egg is composed of polygonal chambers having four to eight sides, most of which are hexagonally shaped. This honeycomb pattern initially appears on primary oocytes as a thin layer of compact, electron-dense material. Discrete thickenings begin to develop on the envelope of per...

journal_title：Journal of morphology

authors： Stehr CM,Hawkes JW

更新日期：1983-12-01 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：:The objectives of this research were to investigate the morphology of the thoracic skeleton and muscles of the mosquito, Culiseta inornata (Williston). The results are presented in 25 text figures and descriptions of each skeletal part and muscle. Undescribed exoskeletal structures are the postmediotergite, intersegme...

journal_title：Journal of morphology

authors： Owen WB

更新日期：1977-09-01 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：:We have studied the gill epithelium of Oreochromis niloticus using transmission electron microscopy with the particular interested relationship between cell morphology and osmotic, immunoregulatory, or other non-regulatory functions of the gill. Pavement cells covered the filament epithelium and lamellae of gills, wit...

journal_title：Journal of morphology

authors： Monteiro SM,Oliveira E,Fontaínhas-Fernandes A,Sousa M

更新日期：2010-05-01 00:00:00

abstract：:Mandible development in the larval stages I-V of two palaemonid shrimp species, Palaemon elegans and Macrobrachium amazonicum, was analyzed using scanning electron microscopy, light microscopy, and confocal laser scanning microscopy. In contrast to the zoea I of P. elegans, first-stage larvae of M. amazonicum are nonf...

journal_title：Journal of morphology

authors： Batel A,Melzer RR,Anger K,Geiselbrecht H

更新日期：2014-11-01 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

authors： Sibbing FA

更新日期：1982-05-01 00:00:00

abstract：:The chimaeroid holocephalian fishes are distinguished among extant chondrichthyans by the possession of three pairs of tooth plates, evergrowing and partially hypermineralized, that are not shed and replaced like the teeth of living elasmobranchs. Although derivation of the chimaeroid tooth plate from the fusion of me...

journal_title：Journal of morphology

authors： Didier DA,Stahl BJ,Zangerl R

更新日期：1994-10-01 00:00:00

abstract：:Bristle positions in two rows of bristles on the basitarsus of the second leg of the fruitfly Drosophila melanogaster were analyzed in order to determine the accuracy of bristle placement within these rows. Within each row the positions of the two terminal bristles were found to be approximately equally variable, and ...

journal_title：Journal of morphology

authors： Held LI Jr,Pham TT

更新日期：1983-11-01 00:00:00

abstract：:Gross and histological examination of all extant families of turtles revealed that the buccopharyngeal mucosa is morphologically highly varied. The tongues of aquatic species have small lingual papillae or lack them entirely, while terrestrial species have tongues with numerous glandular papillae. The pharynx and the ...

journal_title：Journal of morphology

authors： Winokur RM

更新日期：1988-04-01 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

authors： Panhuis TM,Fris M,Tuhela L,Kwan L

更新日期：2017-12-01 00:00:00

abstract：:The form of amniote claws has been extensively investigated, often with inferences about ecological association being drawn from studies of their geometry. Various methods have been used to quantify differences in the geometry of claws, but rarely have the underlying assumptions of such methods been addressed. Here, w...

journal_title：Journal of morphology

authors： Tinius A,Patrick Russell A

更新日期：2017-02-01 00:00:00

abstract：:Many studies in the genus Poecilia have focused on reproductive and genetic characteristics of Poecilia formosa, the Amazon molly, and its sympatric species P. latipinna and P. mexicana. The research literature of Poecilia dentition has been limited to general tooth morphology. Essentially absent are comparative analy...

journal_title：Journal of morphology

authors： Lewis SR,Rasch EM,Hossler FE,Kalbfleisch JH,Monaco PJ

更新日期：1999-03-01 00:00:00

abstract：:Osmotically induced alterations in the ultrastructure of the apical crypts of chloride cells and changes in chloride efflux were studied in striped bass (Morone saxatilis). Striped bass were divided into three groups: fish adapted to freshwater, fish transferred directly from freshwater to 100% seawater (3% salt, w/v)...

journal_title：Journal of morphology

authors： King JAC,Hossler FE

更新日期：1991-08-01 00:00:00

abstract：:The ovary of the seahorse, Hippocampus erectus, is a cylindrical tube bounded by an outer layer consisting of a mesothelium and muscular wall and by an inner luminal epithelium, with a single row of developing follicles sandwiched between the two layers. Follicles are produced by a germinal ridge, which contains oogon...

journal_title：Journal of morphology

authors： Selman K,Wallace RA,Player D

更新日期：1991-09-01 00:00:00

abstract：:Internal and external head structures of males of Strepsiptera were examined and the head of a species of Mengenilla is described in detail. The results suggest a reinterpretation of some structures. The head of basal extant strepsipterans is subprognathous, whereas it is strictly orthognathous in the groundplan of St...

journal_title：Journal of morphology

authors： Beutel RG,Pohl H

更新日期：2006-05-01 00:00:00

abstract：:The morphometry, histochemistry, and biomechanical relationships of rectus capitis muscles were examined in adult cats. This family of muscles contained six members on the dorsal, ventral, and lateral aspects of the upper cervical vertebral column. Three dorsal muscles (rectus capitis posterior major, medius, and mino...

journal_title：Journal of morphology

authors： Selbie WS,Thomson DB,Richmond FJ

更新日期：1993-04-01 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：:Using immunocytochemistry at light- and electron-microscope levels, we studied the distribution of three monoclonal antibodies (AE1, AE2, AE3) specific for mammalian alpha-keratins in regenerating lizard epidermis. We also characterized the keratins expressed during this process by immunoblotting after electrophoretic...

journal_title：Journal of morphology

authors： Alibardi L,Maurizii MG,Taddei C

更新日期：2000-12-01 00:00:00

abstract：:Patterns of ectocranial suture fusion among Primates are subject to species-specific variation. In this study, we used Guttman Scaling to compare modal progression of ectocranial suture fusion among Hominidae (Homo, Pan, Gorilla, and Pongo), Hylobates, and Cercopithecidae (Macaca and Papio) groups. Our hypothesis is t...

journal_title：Journal of morphology

authors： Cray J Jr,Cooper GM,Mooney MP,Siegel MI

更新日期：2014-03-01 00:00:00

abstract：:Previous studies of squamate epidermal structure have focused on either histology and ultrastructure or oberhautchen surface texture as revealed by scanning electron microscopy (SEM). Using SEM data drawn from a variety of lizard taxa (primarily iguanids, but also agamids, chamaeleonids, and scincids), as well as amph...

journal_title：Journal of morphology

authors： Irish FJ,Williams EE,Seling E

更新日期：1988-07-01 00:00:00

abstract：:Morphology is strongly correlated with trophic mode in marine invertebrate larvae. We asked if larval morphogenesis is influenced by adelphophagy, a trophic mode in which larvae are provisioned with additional yolk in the form of extra-embryonic nurse eggs, instead of the more common increase in egg size. We used hist...

journal_title：Journal of morphology

authors： Gibson G,Carver D

更新日期：2013-01-01 00:00:00

abstract：:Homology is resemblance caused by a continuity of information. In biology it is a unified developmental phenomenon. Homologies among and within individuals intergrade in several ways, so historical homology cannot be separated sharply from repetitive homology. Nevertheless, the consequences of historical and repetitiv...

journal_title：Journal of morphology

authors： Van Valen LM

更新日期：1982-09-01 00:00:00

abstract：:Sensory epithelia of the oral tube, a fungiform body anterior to the tentacles and of the terminal knob of tentacles, were studied in Ovatella myosotis by electron microscopy. All three epithelia consist of columnar support cells, sensory cells, and, except in the oral tube, numerous goblet cells. The epithelia differ...

journal_title：Journal of morphology

authors： Wondrak G

更新日期：1984-09-01 00:00:00