Segadilha, J. L.; Gellert, M.; Błażewicz, M. (2018). A new genus of Tanaidacea (Peracarida, Typhlotanaidae) from the Atlantic slope. Marine Biodiversity.

290864

10.1007/s12526-018-0856-y [view]

Segadilha, J. L.; Gellert, M.; Błażewicz, M.

2018

Publication

Two new species of deep-sea Tanaidacea (Aremus islandica n. sp. and A. brasilica n. sp.) were collected in the SW and N Atlanticduring the scientific cruises organized within the HABITATS and IceAGE (Icelandic Animals Genetic and Ecology) initiatives in2009 and 2011, respectively. Both species fit well to the current definition of Typhlotanaidae, but differ from the other membersof the family by the striking feature of absence of the pleopods (one pair of pinnate setae on each pleonite ventrally), thereforethey were accommodated to the newly erected genus – Aremus n. gen.; the new genus lacks the prickly tubercles on the carpus ofpereopods 4–6, although it has three disti nct ser ra ted spines tha t make s it s imilar to four typhlotanai d genera, namely:Meromonakantha, Paratyphlotanais, Hamatipeda and Obesutanais. However, the morphology of the body does not correspondto the typical Meromonakantha neither to short body of Obesutanais. Furthermore Paratyphlotanais and Hamatipeda differ fromthe new genus on the spines form, in which the first one has long serrated spines and the second has hook-like spines. Both newspecies can be distinguished by (1) length of the ventrodistal seta on cheliped carpus, (2) length of dorsodistal seta on carpus ofpereopods 1–3 and (3) length of the uropodal endopod. The systematics of the typhlotanaids without prickly tubercles on thepereopods 4–6 is briefly discussed.

RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)

[Back to search]