''Xipholeptos notoides'', commonly known as the southern pygmy squid, is the sole species in the
cephalopod
A cephalopod is any member of the molluscan class Cephalopoda ( Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, ...
genus ''Xipholeptos''.
[Berry, S. S. (1921). A review of the cephalopod genera ''Sepioloidea'', ''Sepiadarium'', and ''Idiosepius''. ''Records of the South Australian Museum'', 1(4), 347–364.] The species was originally classified as ''Idiosepius notoides''. The southern pygmy squid is native to the southwestern
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contine ...
, off southern and eastern
Australia. It inhabits shallow, inshore waters.
[Reid, A. 2005. Family Idiosepiidae. ''In:'' P. Jereb & C.F.E. Roper, eds. ''Cephalopods of the world. An annotated and illustrated catalogue of species known to date. Volume 1. Chambered nautiluses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae)''. FAO Species Catalogue for Fishery Purposes. No. 4, Vol. 1. Rome, FAO. pp. 208–210.] It has been recorded off the coasts of
New South Wales
)
, nickname =
, image_map = New South Wales in Australia.svg
, map_caption = Location of New South Wales in AustraliaCoordinates:
, subdivision_type = Country
, subdivision_name = Australia
, established_title = Before federation
, es ...
,
South Australia
South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...
,
Tasmania
)
, nickname =
, image_map = Tasmania in Australia.svg
, map_caption = Location of Tasmania in AustraliaCoordinates:
, subdivision_type = Country
, subdi ...
and
Victoria.
[
Females grow to 25 mm in ]mantle
A mantle is a piece of clothing, a type of cloak. Several other meanings are derived from that.
Mantle may refer to:
*Mantle (clothing), a cloak-like garment worn mainly by women as fashionable outerwear
**Mantle (vesture), an Eastern Orthodox ve ...
length, while males are not known to exceed 15.8 mm in mantle length. This species occurs in beds of seagrass
Seagrasses are the only flowering plants which grow in marine environments. There are about 60 species of fully marine seagrasses which belong to four families ( Posidoniaceae, Zosteraceae, Hydrocharitaceae and Cymodoceaceae), all in the ...
in bays and inlets where it feeds during the night on small crustaceans such as shrimp. In the daytime they remain hidden within the seagrass, adhering to the leaves of the seagrass using a glue excreted by a gland on the dorsal surface of the body. The females attach the eggs onto seagrass blades, most typically species of the genera '' Heterozostera'' and ''Zostera
''Zostera'' is a small genus of widely distributed seagrasses, commonly called marine eelgrass, or simply seagrass or eelgrass, and also known as seaweed by some fishermen and recreational boaters including yachtsmen. The genus ''Zostera'' con ...
''. There is thought to be a pelagic
The pelagic zone consists of the water column of the open ocean, and can be further divided into regions by depth (as illustrated on the right). The word ''pelagic'' is derived . The pelagic zone can be thought of as an imaginary cylinder or w ...
stage during this species' development.[
The ]type-specimen
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes th ...
was collected off Goolwa, South Australia
South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...
, Australia, and is deposited at the South Australian Museum
The South Australian Museum is a natural history museum and research institution in Adelaide, South Australia, founded in 1856 and owned by the Government of South Australia. It occupies a complex of buildings on North Terrace in the cu ...
in Adelaide
Adelaide ( ) is the list of Australian capital cities, capital city of South Australia, the state's largest city and the list of cities in Australia by population, fifth-most populous city in Australia. "Adelaide" may refer to either Greater A ...
.[Current Classification of Recent Cephalopoda]
/ref>
References
Further reading
*Eyster, L.S. & L.M. van Camp 2003. ''Biological Bulletin'' (Marine Biological Laboratory, Woods Hole, MA) 205(1), 47–53.
*Tracey, S.R., M.A. Steer & G.T. Pecl 2003. ''Journal of the Marine Biological Association of the United Kingdom'' 83, 1297–1300.
External links
GenBank Links for Genetic Information on ''Idiosepius notoides''
{{Taxonbar, from1=Q51671838, from2=Q51671740, from3=Q2100096
Cephalopod genera
Monotypic mollusc genera
Molluscs described in 1921
Taxa named by Amanda Reid (malacologist)