Typhlotanais greenwichensis, : Shiino, 1970

Błażewicz-Paszkowycz, Magdalena, 2007, Figure 6. Typhlotanais Compactus, Female A In Family Nototanaidae Sieg, 1976 And Typhlotanaidae Sieg, 1984, Zootaxa 1598, pp. 1-141 : 98

‘ 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).