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A. aldrichi is a small species of squid from northern Australian waters. It was described by Chung Cheng Lu in 2005 based on specimens collected in inshore waters of Northern Australia. The largest known individual of this species is a mature female measuring 27.6 mm in mantle length (ML). The holotype is a mature male of 21.3 mm ML. A. aldrichi has never been seen alive. A. aldrichi is part of the class of Cephalopoda which is part of the sub class of Coleoidea. within this class there are two orders, the Myopsida and Oegopsida. Both orders under the superorder decapodiformes. the A. aldrichi falls under the order of Myospida, and is the only member of the genus Australiteuthis and the family Australiteuthidae.

Order
The Myopsid order is made up of two families, the Australiteuthidae and Loliginidae. The squid which fall under the order of Myopsid are neritic squid, which usually dwell in shallow waters and usually appear in large schools. Within the family of Loliginidae, species such as the Loligo forbesii (known as the veined and long-finned squid) may reach sizes up to 90 cm in mantle length. The A. aldrichi falls under the genus of Pickfordiateuthis, or commonly called dwarf squid. Males of the A. aldrichi species may be 17 mm in mantle length at a fully mature state.

Characteristics of Myopsida
Myopsida contain the following characteristics.
 * 1) Arms and tentacles contain circular muscles.
 * 2) Tentacles are clubbed without a proximal locking-apparatus.
 * 3) The head contains tentacle Pockets.
 * 4) The Eyes contain a cornel membrane covering lenses as well as a secondary eyelid.
 * 5) A Funnel that dose not contain adductor muscles
 * 6) Mantle which contains a mantle locking apparatus
 * 7) A shell underneath the mantle
 * 8) Viscera and gills with a branchial canal
 * 9) Eggs that contain a large external yolk sac

Geographical distribution
Specimens of A. aldrichi have been found at the Joseph Bonaparte Gulf of Western Australia, the inshore waters of the Northern Territory, Australia, as well as the Gulf of Papua, Papua New Guinea (PNG). it is theorized that the species lives along the costal regions in Australia and Papua New Guinea.

Habitat
The species has never been found alive. it is only known from a handful of specimens collected in Australia and Papa New Guinea. The A. aldrichi where captured at the depths between 9 m to 61 m deep by fisherman using beam trawls. it is theorized that the species are problaly benthic squid but it is not truly known.

Biology
A. aldrichi has been found at depths 9 m to 61 m and are speculated to live within the benthic zone. From the specimens collected, mature males have a mantle length of 17 mm and mature females have a mantle length of over 22 mm. Biological features of the species include a deep tentacular pocket, tricuspid rachidian teeth, lack of aquiferous pores in the cornea, eyes covered with a transparent cornea, and a photophore on the ink sac. The species is classified in the order of Myopsida because of the shared characteristic of a corneal membrane.