''Pestarella'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
thalassinidea
Thalassinidea is a former infraorder of decapod crustaceans that live in burrows in muddy bottoms of the world's oceans. In Australian English, the littoral thalassinidean ''Trypaea australiensis'' is referred to as the ''yabby'' (a term which al ...
n
crustacean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group ...
erected in 2003 from former members of the genus ''
Callianassa
''Callianassa'' is a genus of mud shrimps, in the family Callianassidae. Three of the species in this genus ('' C. candida'', '' C. tyrrhena'' and '' C. whitei'') have been split off into a new genus, '' Pestarella'', while others such as '' Ca ...
''.
It is distinguished from ''Callianassa'' by the rounded, rather than squarish
telson
The telson () is the posterior-most division of the body of an arthropod. Depending on the definition, the telson is either considered to be the final segment of the arthropod body, or an additional division that is not a true segment on accou ...
, and by the absence of the first two
pleopod
The decapod ( crustaceans such as a crab, lobster, shrimp or prawn) is made up of 20 body segments grouped into two main body parts: the cephalothorax and the pleon (abdomen). Each segment may possess one pair of appendages, although in various ...
s in males.
The genus contains the following species:
*''
Pestarella candida''
(Olivi, 1792)
*''
Pestarella convexa''
(de Saint Laurent & Le Loeuff, 1979)
*''
Pestarella rotundicaudata''
(Stebbing, 1902)
*''
Pestarella tyrrhena
''Gilvossius tyrrhenus'' (formerly ''Pestarella tyrrhena'') is a species of thalassinidean crustacean (''ghost shrimp'' or ''mud shrimp'') which grows to a length of . It lives in burrows in shallow sandy parts of the sea-bed in the Mediterranean ...
''
(Petagna, 1792)
*''
Pestarella whitei''
(Sakai, 1999)
References
Thalassinidea
{{decapod-stub