Chauliopleona Dojiri and Sieg, 1997

Bird, Graham John, 2015, Tanaidacea (Crustacea: Peracarida) of the northeast Atlantic: Chauliopleona Dojiri and Sieg, 1997 and Saurotipleona n. gen. from the ‘ Atlantic Margin’, Journal of Natural History (J. Nat. Hist.) 49, pp. 1-41 : 8-9

publication ID

https://doi.org/ 10.1080/00222933.2015.1005715

persistent identifier

https://treatment.plazi.org/id/03909010-FFC0-FFB7-FE4B-FD12794F8EEF

treatment provided by

Carolina

scientific name

Chauliopleona Dojiri and Sieg, 1997
status

 

Chauliopleona Dojiri and Sieg, 1997 View in CoL

Leptognathia: Hansen 1913: 79 View in CoL , in part, for Leptognathia ‘group a, subdivision γ ’

Chauliopleona Dojiri and Sieg, 1997: 231 (diagnosis); Guerrero-Kommritz 2005:

1179–1180 (diagnosis and remarks); Larsen 2005: 251–252 (diagnosis and

remarks); Larsen and Shimomura 2007: 32–33 (remarks and description of

C. hansknechti View in CoL ); Bird 2007: 141–143 (remarks and records of Japan Trench

species); Larsen and Shimomura 2009: 50–58 (remarks and description of

C. sinusa View in CoL ); Błażewicz-Paszkowycz, Bamber, Jóźwiak 2012: 19–21 (redescription

of C. hansknechti View in CoL ); Larsen and Araújo-Silva 2014: 245–255 (diagnosis and descrip-

tion of C. ciimari and C. andeepi ); else, see Anderson 2013 or Sieg 1983 Diagnosis (developed from Dojiri and Sieg 1997, Larsen and Shimomura 2009). Akanthophoreid with cephalothorax with parallel or sub-parallel lateral margins. Pleonites 1–4 sternites with or without low medial process, pleonite-5 sternite with acute recurved spur. Pleotelson lateral margins smooth. Mandible molar acuminate-palmate. Maxilliped bases with or without long seta. Cheliped carpus inferior shield very slight to strongly developed; fixed finger without proximal dentition, with two inferior bayonet spines; dactylus with crenate or smooth superior margin. Pereopods 1–3 basis not broader than that of pereopods 4–6, superior margin with large plumose sensory seta (PSS); pereopod-1 carpus with two bayonet spines, pereopods 2–3 with three. Pereopods 4–6 carpus with three bayonet spines and superodistal rod-like seta; pereopods 4–5 propodus with one superodistal spine, pereopod-6 with three (sometimes slender). Uropod peduncle simple [without spur]; exopod two-segmented, shorter than segment-1 of endopod.

Preparatory male. Pleon slightly larger than in female. Antennule five-articled, broader than female. Mouthparts similar. Pleopods slightly larger and/or with more setae than female. Swimming male: unknown or not proven.

Type species

Chauliopleona dentata Dojiri and Sieg, 1997 View in CoL .

Composition

Chauliopleona amdrupii ( Hansen 1913) View in CoL ; C. amftae Guerrero-Kommritz, 2005 View in CoL ; C. andeepi Larsen and Araújo-Silva, 2014 View in CoL ; C. armata ( Hansen 1913) ; C. bamberi View in CoL n. sp.; C. ciimari Larsen and Araújo-Silva, 2014 View in CoL ; C. dentata View in CoL ; C. faini Larsen, 2005 View in CoL ; C. hansknechti Larsen and Shimomura, 2007 View in CoL ; C. hastata ( Hansen 1913) View in CoL ; C. nickeli Guerrero-Kommritz, 2005 View in CoL ; C. paradoxa Guerrero-Kommritz, 2005 View in CoL ; C. sinusa Larsen and Shimomura, 2009 View in CoL .

Remarks

Chauliopleona is an Akanthophoreus or Parakanthophoreus -like genus with pleonite-5 supporting an acute, recurved, sternal spur. Diagnoses of this akanthophoreid genus have been given previously several times (see above). Twelve species have been described to date ( Anderson 2013; Larsen and Araújo-Silva 2014) but it has been a problematic genus, mainly because it has been difficult to find diagnostic and phylogenetically valid characters that separate it from Akanthophoreus , Parakanthophoreus and Paraleptognathia , other than the pleonal spur. There has also been speculation that the pleonal spur might only be a sex-related character (Bamber, Larsen pers. comm.). Surprisingly, this was the only character in the original generic diagnosis (Dojiri and Sieg 1997, p. 231). Its status in mancae remains unresolved as none of these were identified as Chauliopleona in the present study; it is quite possible that the spur is absent in this developmental stage and they would be indistinguishable from mancae of Akanthophoreus or Parakanthophoreus .

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Tanaidacea

Family

Akanthophoreidae

Loc

Chauliopleona Dojiri and Sieg, 1997

Bird, Graham John 2015
2015
Loc

C. sinusa

Blazewicz-Paszkowycz M & Bamber R & Jozwiak P 2012: 19
2012
Loc

C. hansknechti

Bird GJ 2007: 141
2007
Loc

Leptognathia: Hansen 1913: 79

Hansen HJ 1913: 79
1913
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