210
Systematic Account
According to the taxonomic key given by
Damkaer (1975), the two differ mainly for
their ornamentation of the swimming legs; S.
brevicaudatus lacks strong spines on PI Re3,
P2 Bl, P4 B2 which are characteristic of S.
terranovae. The absence of this ornamentation on the swimming legs of our specimens is
clearly shown in the SEM figures. The only
male we found concords perfectly with the
description given by Damkaer (1975) both in
general shape and for the details of the P5.
Unfortunately, the left and right P5 Re3 were
broken in our specimen.
Distribution
Damkaer (1975) re-orders, on the basis of
the complex and confusing. synonymy, t?e
records of this species and Its areas of dIStribution. It is widely distributed in the North
and Central Pacific, West Indian and Atlantic
Oceans. It has also been reported in the SE
Atlantic Ocean by Unteriiberbacher (1964).
The present record is the firs~ for su?-Antarctic waters. S. brevicaudatus IS consIdered an
oceanic bathypelagic species, recorded down
to 4000 m. In the present study, it was
sampled only in the Pacific area of the Straits
of Magellan, where it occurred at all depths
but with maximum abundances from 400500m.
Systematic Account
According to the taxonomic key given by
Damkaer (1975), the two differ mainly for
their ornamentation of the swimming legs; S.
brevicaudatus lacks strong spines on PI Re3,
P2 Bl, P4 B2 which are characteristic of S.
terranovae. The absence of this ornamentation on the swimming legs of our specimens is
clearly shown in the SEM figures. The only
male we found concords perfectly with the
description given by Damkaer (1975) both in
general shape and for the details of the P5.
Unfortunately, the left and right P5 Re3 were
broken in our specimen.
Distribution
Damkaer (1975) re-orders, on the basis of
the complex and confusing. synonymy, t?e
records of this species and Its areas of dIStribution. It is widely distributed in the North
and Central Pacific, West Indian and Atlantic
Oceans. It has also been reported in the SE
Atlantic Ocean by Unteriiberbacher (1964).
The present record is the firs~ for su?-Antarctic waters. S. brevicaudatus IS consIdered an
oceanic bathypelagic species, recorded down
to 4000 m. In the present study, it was
sampled only in the Pacific area of the Straits
of Magellan, where it occurred at all depths
but with maximum abundances from 400500m.