Saurotipleona,

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), pp. 1507-1547: 1535

publication ID

http://doi.org/ 10.1080/00222933.2015.1005715

publication LSID

lsid:zoobank.org:pub:DF4A4007-4DB8-4215-B53B-D95727217166

persistent identifier

http://treatment.plazi.org/id/22078D00-0C5F-48E3-B5AD-9A8517E0AA41

taxon LSID

lsid:zoobank.org:act:22078D00-0C5F-48E3-B5AD-9A8517E0AA41

treatment provided by

Carolina

scientific name

Saurotipleona
status

n. gen.

Saurotipleona  n. gen.

Akanthophoreus: Holdich and Bird 1989  : in part; Bird 2001: in part, see below

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.

Etymology

From the Greek saurotos, ‘spiked’, and suffix pleona; a similar name to Chauliopleona  ; gender female.

Type species

Saurotipleona julii  sp. nov.; see below. Monotypic.

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.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Tanaidacea

Family

Akanthophoreidae

Loc

Saurotipleona

Bird, Graham John 2015
2015
Loc

Akanthophoreus

: Holdich and Bird 1989
1989