1063-0740/04/3006- © 2004
Russian Journal of Marine Biology, Vol. 30, No. 6, 2004, pp. 414–417.
Original Russian Text Copyright © 2004 by Biologiya Morya, Latypov.
In Russian territorial water, solitary ahermatypic
scleractinians were recorded for the ﬁrst time at abyssal
depths of the Kuril-Kamchatka Trench [1, 2].
bathyme A total of four species were recorded and
described. Two of them were new species of the genus
F. symmetricus symmetricus
, originally treated as a new
subspecies , was later reclassiﬁed by Cairns  as a
The other two species
belonged to the genus
). For detailed information on the distribu-
tion and diversity of ahermatypic corals in the North
Paciﬁc, the reader is referred to the respective papers
[8, 11, 12, 14].
Small ahermatypic corals are a natural component of
aquatic communities. They have always been found in
dredge samples taken from the near-shore waters off
Alaska and the Kuril, Commander, and Aleutian islands
[1, 8, 14]. Caryophylliids (more than 30 species) were
recorded at depths of 52 to 1680 m throughout the whole
Indowestpaciﬁc region and in the temperate North
Paciﬁc. For complete information on the distribution of
ahermatypic scleractinian (on the whole, more than
100 species) corals the reader is referred to Cairns’s
paper . This author revised the taxonomic position of
a number of scleractinian species.
, the ﬁrst species to be treated in this
paper, inhabits depths ranging from 311 to 2670 m in
warm waters off Japan and in the Atlantic Ocean. The
second species (
) is limited to the tropical
and warm Indopaciﬁc. The third species (
The term ahermatypic scleractinians refers to corals that do not
live in symbiosis with zooxanthellae and whose depth of distribu-
tion, therefore, is not limited by the ambient light regime.
has been recorded in the Paciﬁc Ocean, from the Gulf
of Korea to the Aleutian and Commander islands. The
range of the fourth species (
covers the near-shore waters off the west coast of North
America, from Monterey Bay (California) to Cape
Blanco (Oregon). The four species were recorded in the
Sea of Okhotsk off the Kuril Islands for the ﬁrst time.
These data will supplement regional reports on the bot-
tom fauna of the most fertile and extensively commer-
cially exploited, but scarcely studied, continental shelf
region of the temperate Paciﬁc waters. The corals
attached to boulders were sampled by dredging during
the 29th cruise of the RV
(Figs. 1a, 1b)
: Alcock (1898); Zibrowius
(1980); Keller (1981).
: Yabe and Eguchi (1942).
Caryophyllia ambrosia ambrosia
: Cairns (1994).
Material. Specimen 9321. Station 49; 49
Solitary conical coral, with the lower part of the
body curved at the basis of rootlike structures that serve
for attachment. Calyx subspherical, small, measures
24 mm in diameter. Corallite up to 28 mm tall. Theca
porcelain, white, with wide and low costae. The latter
are separated by narrow furrows at the bases of the
septa. Costae well-developed towards the upper margin
of the corralite.
New Records of Ahermatypic Scleractinian Corals
from the Kuril Islands
Yu. Ya. Latypov
Institute of Marine Biology, Far East Division, Russian Academy of Sciences,
Vladivostok, 690041 Russia
Received April 20, 2004
—Four species of caryophyllid scleractinians,
Caryophylla ambrosia, C. scobinosa, C. alaskensis
, were recorded for the ﬁrst time in the Sea of Okhotsk off the Kuril Islands. These
ﬁndings extend the range for the species, of which three had previously been considered to be restricted to the
tropical and warm Indopaciﬁc waters. These data will supplement regional reports on the bottom fauna of the
most fertile and extensively commercially exploited continental shelf region of the North Paciﬁc.
ahermatypic scleractinian corals, Kuril Islands, distribution.