(1) The musculature of the fins of the cuttlefish Sepia officinalis (Mollusca, Cephalopoda) was studied with electromyography to test predictions of the functional role of the various muscle masses.
(2) This 9th Contribution concerns Cestodes obtained from: A Lamellibranchiata, B Gastropoda, C Pteropoda, D Cephalopoda, E Crustacea.
(3) A similar contrast is found between cephalopoda and other mollusca, and the discussion of physiological adaptations is extended to include these groups and the Echinodermata.
(4) Basic spermal proteins of various species of hydrobionts attributed to Pisces and Cephalopoda are studied.
(5) The l-rRNA ranges in size from a minimum mol wt of 1.28 X 10(6) to a maximum weight of 1.60--1.66 X 10(6) (of warm-blooded vertebrates, Cephalopoda and Diptera); several intermediate values have been found in lower organisms and Protozoa.
(6) Chromatin of three species from squid superorder referring to Cephalopoda includes gametones -- proteins differing from histones and protamines both in the electrophoretic mobility and amino acidic composition (75% mol.
Gastropoda
Definition:
(n. pl.) One of the classes of Mollusca, of great extent. It includes most of the marine spiral shells, and the land and fresh-water snails. They generally creep by means of a flat, muscular disk, or foot, on the ventral side of the body. The head usually bears one or two pairs of tentacles. See Mollusca.
Example Sentences:
(1) Cystophorous cercariae from Retusa obtusa (Montagu) (Gastropoda, Opisthobranchia, Retusidae) develop into adults of Brachyphallus crenatus (Rudolphi, 1802) Odhner, 1905 (Hemiuridae).
(2) Two major classes, the Gastropoda and the Pelecypoda, have been the subject of numerous studies on immunity and neoplasia.
(3) In the nervous system of the cockroach (Insecta, Arthropoda) and Aplysia (Gastropoda, Mollusca) distribution of PHI and VIP was examined by immunocytochemistry.
(4) In acute experiments the interaction of heavy metals (CdCl2 and HgCl2) with neurotransmitters (ACh and 5HT) was studied on the excitable membrane of the identified neurons in the central nervous system of Helix pomatia L. (Gastropoda, Mollusca).
(5) The technique for ultrastructural localization of argyrophilic proteins was modified and NOR-Silver staining methods were applied to the study of the distribution of these proteins in the spermatic cells of Nucella lapillus (Gastropoda, Prosobranchia).
(6) The masses of individual particles of the hemocyanins of six members of two molluscan classes, Polyplacophora and Gastropoda, have been determined by scanning transmission electron microscopy (STEM) of unstained specimens dried from the frozen state.
(7) Tritiated reserpine was injected into the body cavities of specimens of Busycon canaliculatum (Mollusca, Gastropoda).
(8) Four Gastropoda species and two Bivalvia species from the Volga river basin were examined.
(9) A approximately 25 nm hollow double helical filament has been detected ultrastructurally in the cell-free supernatant from hemolymph of the keyhole limpet Megathura crenulata (Gastropoda: Prosobranchia: Fissurellidae).
(10) A review of the literature shows that the fresh water snail Planorbis planorbis (Mollusca: Gastropoda) infected with Xiphidiocercariae has never been recorded in Derna, Libya.
(11) Organisms with copper as an essential component of their haemolymph, such as Crustacaea, Gastropoda and Bivalvia, contained higher concentrations of that metal than other species.
(12) The modulatory effects of interleukin-1 (IL-1), an immunotransmitter, and FMRFamide, a molluscan neuropeptide, were studied on identified neurons of Helix pomatia L. (Mollusca, Gastropoda) by using the method of two microelectrode voltage clamp.
(13) This 9th Contribution concerns Cestodes obtained from: A Lamellibranchiata, B Gastropoda, C Pteropoda, D Cephalopoda, E Crustacea.
(14) The morphology of giant neuron RPDI in right parietal ganglia of Lymnaea stagnalis (Mollusca, Gastropoda) was studied by intracellular injection of the Lucifer Yellow.
(15) The authors describe the biological cycle of the Trematoda Dicrocoelium lanceolatum in Lebanon and in Syria: two principal first hosts are the Gastropoda: Theba syriaca and Xerophila vestalis; the second intermediate host is the ant Formica (S.) rufibarbis var.
(16) Botulotoxin was detected at high concentrations in sarcophagic fly larvae of Calliphora vomitoria and Lucilia sericata which were collected in bird cadavers, but it was not found in different components of the aquatic environment (water, submersed vegetation, phytoplankton, zooplankton, Gastropoda, Crustacea, Oligochaeta, larvae of Odonata, Chironomidae and Ceratopogonidae).
(17) The adventitial cells surrounding the spermatheca of the reproductive system of Sonorella santaritana (Mollusa: Gastropoda) appear to have an unusual system of vesicles.
(18) Phosphofructokinase was purified from muscle tissue of two different molluscs, edible snails, Helix pomatia (gastropoda), and mussels, Mytilus edulis (bivalvia).
(19) The present study investigated the composition of muramyl derivatives in Mollusca Gastropoda tissue from the foot, mantle and periesophageal ganglia, using HRP-labeled lectins (LTA, UEA I, GSA IB4, GSA II, DBA, SBA, RCA II, WGA, PNA, ConA) and glycosidase digestion (neuraminidase, lysozyme, alpha-L-fucosidase, beta-N-acetylglucosaminidase, alpha-N-acetylgalactosaminidase).
(20) Survival of the cystophorous cercariae of Halipegus occidualis (Trematoda: Hemiuridae) from naturally infected Helisoma anceps (Gastropoda: Planorbidae) was determined following constant temperature storage at 4, 16, 22, 26 and 30 degrees C. At 4 degrees C, 90% of cercariae survived for 14 weeks and 50% survived for 30 weeks.