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Pleuroceridae Io fluvialis Athearnia anthonyi Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Gastropoda (unranked): clade Caenogastropoda clade Sorbeoconcha Superfamily: Cerithioidea Family: Pleuroceridae Fischer, 1885 Diversity [1] [2] About 150 extant species Pleuroceridae , common name pleurocerids , is a family of small to medium-sized freshwater snails, aquatic gilled gastropod mollusks in the superfamily Cerithioidea.These snails have an operculum and typically a robust high-spired shell. Reproduction is iteroparous, and juvenile snails emerge from eggs laid on a firm surface by a gonochoristic female. There is no veliger stage. Contents 1 Distribution 2 Taxonomy 2.1 2005 taxonomy 2.2 2009 taxonomy 3 Genera 4 References 5 Further reading 6 External links Distribution As currently defined, this family is confined entirely to eastern Nort

1 I need to print comma "," when the list more than one, and if more than one, the last list I don't want to print comma. I know I can use Join to to do this but I can't loop @NAMES with comma if there is another @FAMILIES to add in. #!/usr/bin/perl use strict; use warnings; my @NAMES = qw(ALLIES BOBBY CAKRA); my @FAMILIES = qw(A B C); foreach my $names (@NAMES) { foreach my $families (@FAMILIES) { print "$names, // $familiesn"; } } Expected Outcome: ALLIES, // A ALLIES, // B ALLIES, // C BOBBY, // A BOBBY, // B BOBBY, // C CAKRA, // A CAKRA, // B CAKRA // C perl share | improve this question