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Species Diceratocephala boschmai Baer, 1953

 

Introduction

This species was originally described from species of Cherax from Papua New Guinea, but has since been recorded from Australia. It is a well-known and widespread ectocommensal of crayfish in commercial aquaculture systems in Australia and overseas, however, D. boschmai is believed not to negatively impact on crayfish health. Jones & Lester (1993) demonstrated that D. boschmai had low specificity in cultured conditions, infecting a wide range of species of Cherax (C. cuspidatus, C. depressus, C. destructor, C. tenuimanus and C. quadricarinatus); it did not infect species of Macrobrachium because of the grooming habits of these shrimp. Grooming behaviour and host size were shown by Jones & Lester (1996) to influence population levels of D. boschmai on cultured crayfish.

Anatomy
Joffe et al. (1995) examined the syncytial epidermis of D. boschmai, collected from cultured Cherax quadricarinatus (von Marterns, 1868), using electron microscopy and found that the epidermis structure was different in different regions of the body, reflecting the different functionalities of these body regions.

 

Distribution

States

New South Wales, Queensland


Extra Distribution Information

Central part of Dutch New Guinea [= West Papua]; ex Cherax boschmai, Cherax communis, Cherax pallidus, Cherax lorentzi, and Cherax longipes. See Baer (1953). The University of Queensland Veterinary Farm, Pinjarra Hills, Brisbane, Queensland, Australia; ex Cherax quadricarinatus (von Martens, 1868). See Joffe et al. (1995). The University of Queensland Veterinary Farm, Pinjarra Hills, Queensland, Australia; ex branchial chamber Cherax quadricarinatus (von Martens, 1868). See Joffe et al. (1997). Crayfish farm, Piriapolis, Departamento de Maldonado, Uruguay; ex carapace and branchial chamber Cherax quadricarinatus (von Martens, 1868). See Volonterio (2009).


Distribution References

Ecological Descriptors

Ectosymbiotic (host(s): Cherax quadricarinatus (von Martens, 1868) [PARASTACIDAE] Redclaw; Cherax boschmai [PARASTACIDAE] (Reported from Dutch New Guinea); Cherax communis [PARASTACIDAE] (Reported from Dutch New Guinea); Cherax pallidus [PARASTACIDAE] (Reported from Dutch New Guinea); Cherax lorentzi [PARASTACIDAE] (Reported from Dutch New Guinea); Cherax longipes [PARASTACIDAE] (Reported from Dutch New Guinea)).

Associated Fauna References

Baer, J.G. 1953. Zoological results of the Dutch New Guinea expedition 1939. Zoologische Mededelingen (Leiden) 32: 119-139, 6 pls (Cherax longipes; Cherax lorentzi; Cherax pallidus; Cherax communis; Cherax boschmai)

Joffe, B.I., Solovei, I.V., Watson, N.A. & Cannon, L.R.G. 1997. Structure and evolution of the pharynx in the Temnocephalida (Platyhelminthes). Canadian Journal of Zoology 75: 205-226 (Cherax quadricarinatus)

Volonterio, O. 2009. First report of the introduction of an Australian temnocephalidan into the New World. Journal of Parasitology 95(1): 120-123 (Cherax quadricarinatus)

 

History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
20-May-2023 RHABDITOPHORA Ehlers, 1985 20-May-2023 MODIFIED Dr Nicholas Wee (QM)
28-Sep-2022 RHABDITOPHORA Ehlers, 1985 14-Apr-2023 MODIFIED
25-Jan-2022 "TURBELLARIA" 20-May-2023 MODIFIED
06-Sep-2017 "TURBELLARIA" 20-May-2023 MODIFIED Dr Kathryn Hall Dr Alberto Venchi
17-Aug-2015 "TURBELLARIA" 20-May-2023 MODIFIED Dr Kathryn Hall
"TURBELLARIA" 02-Aug-2012 ADDED Dr Kathryn Hall