In helically coiled, anisostrophic gastropods
, paired muscle attachment scars are reported in adult shells in several Palaeozoic platyceratoideans and rarely in pleurotomarioideans, but at the present day they are also present in some extant vetigastropods, neritomorphans, patellogastropods and a few caengastropods (Fretter & Graham 1994; Ponder & Lindberg 1997).
lurida, unidentified bivalve veligers from the plankton, veligers of the gastropods
Intermediate hosts of trematodes are freshwater gastropods
(Caminade et al., 2015; Canete et al., 2004; Caron et al., 2014; El-Shazly et al., 2012; Gorokhov et al., 2010; Khoramian et al., 2014; Lopez et al., 2012; Novobilsky et al., 2013; Rondelaud et al., 2015; Stadnichenko, 2006).
In a similar way to the Bivalvia, gastropods
usually produce an external protective shell made from calcium carbonate; exceptions are seen in species of Opisthobranchia where the shell is reduced, internal, or absent (Fretter & Graham 1994).
, Bivalves, Cephalopods and Polyplacophora are the major four classes, which include snails, clams, scallops, oysters, cuttlefish, and octopus (1).
To better understand molluscan prey selection, 277 shells were collected and examined from three collection sites along the Texas Upper Gulf Coast on the Bolivar Peninsula (29[degrees] 40'N, 94[degrees] 90'W) to test the hypothesis that drilling gastropods
exhibit prey selection.
Transmission involves a complex life cycle in which first-stage larvae are released to the external environment on deer faeces, and infect and develop in terrestrial gastropods
which are subsequently ingested by cervids.
In the present study, survey of marine gastropods
for biodiversity was done along three substations; Sheva creek, Peerwadi coast and Dharamtar creek of Uran (Raigad), Navi Mumbai, west coast of India.
The faunal assemblages encountered include gastropods
, ostracods, pelecypods, echinoderms, milliolids, algae, sponge spicules and bioclastic debris.
Therefore, the present study aims to document the distribution of gastropods
and bivalves along the Tarut coast, Arabian Gulf, Saudi Arabia.
Slugs usually hibernate during the cold months but temperatures have been too high - meaning that the gastropods
have been able to reproduce all winter.