Figure 6. Typhlotanais Compactus, Female A In Family Nototanaidae Sieg, 1976 And Typhlotanaidae Sieg, 1984
Author
Błażewicz-Paszkowycz, Magdalena
text
Zootaxa
2007
2007-09-28
1598
1
141
http://dx.doi.org/10.5281/zenodo.178692
journal article
10.5281/zenodo.178692
11755334
7604A52C-F935-459C-91DD-F7C7AD9F2CC6
‘
greenwichensis
’ group
Diagnosis:
Body elongate, over seven times as long as wide. Pereonite margins parallel. Mandible molar process with irregular edges. Maxilliped basis with long setae (longer than endites); endites edge with two tubercles and two setae. Cheliped basis reaching pereonite-1 ventrally. Chela slender, carpus longer than propodus, with minute setae on dorsal margin. Pereopods 1–3 coxa with spur. Pereopods 4–6 prickly tubercles surrounded by minute spines. Uropod rami one- or two-articled.
Species included:
Typhlotanais greenwichensis
Shiino, 1970
;
Typhlotanais messinensis
G.O. Sars, 1882
Remarks:
The ‘
greenwichensis
’ morpho-group is well defined by the combined presence of minute setae on the dorsal margin of the cheliped, an anteriorly-directed spur on the coxa of pereopods 1–3, and prickly tubercles on pereopods 4–6 surrounded by blunt spines. The minute setae on the cheliped carpus also occur in the genus
Peraeospinosus
, while prickly tubercles surrounded by blunt spines are found in both
Peraeospinosus
and
Torquella
n. gen.
The first genus is well defined by the long setae on propodus of pereopods 4–5 and the subequal uropod rami, while
Torquella
by the characteristic body habitus and shape of pereonite-1.
Spurs on the coxa of pereopods 1–3 are characteristic for all described members
Paratyphlotanais
and for
Typhlotanais mimosis
n. sp.
that is included in this paper with the ‘
mixtus
’ group (see remarks under ‘
mixtus
’ group).