Engaewa similis

Taxobox | name = "Engaewa similis"

---

image_caption = Diagram adapted from Riek, 1967.
status = EN | status_system = IUCN2.3
status_ref = [cite web |author=K. A. Crandall |year=1996 |url=http://www.iucnredlist.org/search/details.php/7749/all |title="Engaewa similis" |work=IUCN Red List of Threatened Species |accessdate=2007-08-09]
regnum = Animalia
phylum = Arthropoda
subphylum = Crustacea
classis = Malacostraca
ordo = Decapoda
familia = Parastacidae
genus = "Engaewa"
species = "E. similis"
binomial = "Engaewa similis"
binomial_authority = Riek, 1967 [cite web |author=James W. Fetzner, Jr. |publisher=Carnegie Museum of Natural History |work=Crayfish Taxon Browser |date=2006-12-06 |title="Engaewa similis" Riek, 1967 |url=http://iz.carnegiemnh.org/crayfish/NewAstacidea/species.asp?g=Engaewa&s=similis&ssp=]

"Engaewa similis" is a species of crayfish in the family Parastacidae. It is endemic to Australia.

In the 1996 ICUN red list of threatened animals Crandall assigned "Engaewa similis" the designation of EN B1+2C, indicating that the species is endangered with small distribution and decline or fluctuation, with either an extent of occurrence < 5,000 km² or area of occupancy < 500 km², and either severely fragmented or known to exist at a number of locations with population ≤ 5. And the population is in continuing decline in area, extent and/or quality of habitat. [Description from Table 1 p. 21 in the 1996 ICUN red list of threatened animals.]

An adult female holotype (a single physical example of the species) was found in Augusta, Western Australia by L.P. Smith in 1961. In 1967 Riek gave detailed description of the holotype, held at the Western Australian Museum: 36 mm (cephalothorax 16.5 mm), usual blue colour on the chela, similar to Engaewa reducta apart from the shape of the rostrum, structure of the chela and shape of the telson and urapods.cite journal | author = E.F. Riek | year = 1967 | title = Freshwater Crayfish of Western Australia | journal = Australian Journal of Zoology | volume = 15 | pages = 111 | doi = 10.1071/ZO9670103]

References