Pi132 Parascorpaena armata
Kingdom:
Animalia
Phylum:
Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family:
Scorpaenidae
Tribe: Scorpaenini
Genus: Parascorpaena
Scorpaenidae
have a compressed body with the head typically having ridges and spines. There
are 1-2 spines on the operculum, with 2 normally being divergent, and 3-5 on
the preoperculum, normally 5. The suborbital stay is normally securely attached
to the preoperculum, although in some species it may not be attached. If there
are scales they are typically ctenoid. They normally have a single dorsal fin
which is frequently incised. The dorsal fin contains between 11 and 17 spines
and 8 and 17 soft rays while the anal fin usually has between 1 and 3 spines,
normally 3, and 3 to 9 soft rays, typically 5, There is a single spine in the
pelvic fin and between 2 and 5 soft rays, again typically 5, while the large
pectoral fin contains 11-25 soft rays and sometimes has a few of the lower rays
free of its membrane. The gill membranes are not attached to the isthmus. In
some species, there is no swim bladder. There are venom glands in the spines of
the dorsal, anal, and pelvic fins in some species. Most species utilise
internal fertilisation, and some species are ovoviviparous while others lay
their eggs in a gelatinous mass, with Scorpaena guttata being reported to
create a gelatinous "egg balloon" as large as 20 cm (7.9 in)
across.[2] The largest species is the shortraker rockfish (Sebastes borealis)
which attains a maximum total length of 108 cm (43 in) while many species have
maximum total lengths of 5 cm (2.0 in).
No comments