Which pair of animals are not included in mammals?

Identify the mismatched pair from the following:

Select the animals having an open type of circulatory system:
$(i)$ $Ascidia$
$(ii)$ $Cockroach$
$(iii)$ $Earthworm$
$(iv)$ $Prawn$
$(v)$ $Silver$ $fish$
$(vi)$ $Snail$
$(vii)$ $Squid$

Assertion: Lateral line system is found in fishes and aquatic larval amphibians.
Reason: Lateral line system has receptors of sensory cells derived from ectoderm.

Which of the following is the correct matching of an animal,its characteristics,and its taxon?

Make the correct pair:

$1. \text{ Osculum}$	$p. \text{ Fasciola}$
$2. \text{ Hypostome}$	$q. \text{ Ctenoplana}$
$3. \text{ Comb jellies}$	$r. \text{ Spongilla}$
$4. \text{ Hook and sucker}$	$s. \text{ Meandrina}$