The Japanese invasive jumping snail Ovachlamys fulgens is a pest of ornamental plants and an intermediate host nematode that causes eosinophilic meningitis. We expand its distribution to eight municipalities from Rio de Janeiro State, one locality the Paraná generated for first time partial sequences cytochrome c oxidase subunit I (COI) gene Brazilian populations. External morphology, reproduct...

We observed fibers immunoreactive (IR) to serotonin (5-HT), the myomodulins (MMs), and FMRFamide on the I7-I10 complex in the marine mollusk Aplysia californica. The I7-I10 muscle complex, which produces radula opening, is innervated primarily by one motor neuron, B48. B48 is MM-IR and synthesizes authentic MM(A). When B48 is stimulated in a physiological manner, cAMP levels are increased in op...

Twelve new species of the streptaxid snail genus Discartemon Pfeiffer, 1856 are described from southern Thailand and western Malaysia, D. afthonodontia sp. n., D. circulus sp. n., D. deprima sp. n., D. discadentus sp. n., D. discamaximus sp. n., D. expandus sp. n., D. flavacandida sp. n., D. kotanensis sp. n., and D. megalostraka sp. n. from southern Thailand, as well as D. conicus sp. n., D. e...

A new species of Ovulidae, Simnia hiscocki, is described from the Cornwall Peninsula, England, and compared with Simnia patula occurring in the same area, from which it differs in shelland radula-morphological features as well as ecological features. DNA analysis suggests that it is a very young species whose host-specificity to Eunicella verrucosa makes it a potentially useful species for moni...

Antimicrobial activities of two ethanolic extracts, made from fresh and dried leaves of Pelargonium radula (Cav.) L'Hérit, were tested against fourteen species of bacteria and fifteen species of fungi. The well-diffusion method indicated the strongest activity against Pseudomonas aeruginosa. The broth dilution method revealed that the most sensitive microorganisms were Bacillus pumilus, Bacillu...

The genus Sinetectula gen. nov. is proposed to accommodate Triton egregius Reeve, 1844, Buccinum cinis 1846, nigricostatum (Pollia) farinosum Gould, 1850, Pisania naevosa Martens, 1880, Pollia shepstonensis Tomlin, 1926 and one still undescribed species. These species are discussed compared, remarks on their biogeography provided. occasional appearance of a labral denticle recorded the morpholo...

background: slugs have been known worldwide as important pests of agricultural and horticultural production. they also play a role as intermediate or definitive hosts of helminths parasite. in this purpose, current study was carried out to examine slug radular teeth structure and slug infection with helminths larvae in north of iran. methods: a total number of 114 slugs were collected from cent...

Feeding, regurgitation, and rejection in the marine gastropod Pleurobranchaea all involve similar but not identical rhythmic movements of buccal mass structures such as the radula, jaws and lips. The part of the motor pattern which produces rhythmic radula movement, as recorded in the major external muscles of the buccal mass of behaving semi-intact preparations, was similar during the three di...