Saurotipleona Bird 2015
- Dataset
- Tanaidacea (Crustacea: Peracarida) of the northeast Atlantic: Chauliopleona Dojiri and Sieg, 1997 and Saurotipleona n. gen. from the ‘ Atlantic Margin’
- Rank
- GENUS
- Published in
- 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 49 (25): 1507-1547, DOI: 10.1080/00222933.2015.1005715
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Malacostraca
- order
- Tanaidacea
- family
- Akanthophoreidae
- genus
- Saurotipleona
diagnosis
Diagnosis Akanthophoreid with pereonites 2 – 5 as long as broad or slightly longer, lateral margins parallel or slightly produced at pereopod insertion. Pleonite- 5 sternite with non-recurved acuminate spur. Pleotelson without lateral spurs. Maxilla setulate. Maxilliped bases with long seta. Cheliped carpus shield large, rounded; fixed finger incisive margin without proximal denticulation; dactylus superior margin smooth. Pereopods 2 – 3 carpus with three bayonet spines and medial seta. Pereopods 1 – 3 basis superior margin with PSS; propodus (and some carpus) inferior spinules robust. Pereopod- 5 propodus with two superodistal spines. Uropod peduncle simple; exopod two-segmented; endopod slender, about three times length of peduncle. Preparatory male similar to female but pleon slightly larger; antennule fivearticled, stouter than in female. Swimming male not known.
discussion
Remarks Two superodistal spines (rather than one) on the propodus of pereopod- 5 are plesiomorphic relative to most paratanaoids other than leptocheliids, teleotanaids, pseudozeuxids, heterotanoidids and a few others, such as Tangalooma Bamber, 2008. The presence of this character in an akanthophoreid genus is surprising, although it was apparently observed, but for pereopod- 4 and without comment, by Guerrero- Kommritz (2005) for C. hastata. The validity of this is discussed below.
etymology
Etymology From the Greek saurotos, ‘ spiked’, and suffix pleona; a similar name to Chauliopleona; gender female.
type_taxon
Type species Saurotipleona julii sp. nov.; see below. Monotypic.
Name
- Synonyms
- Akanthophoreus : Holdich and Bird 1989
- Homonyms
- Saurotipleona Bird 2015