Named by Dumitrica & Matsuoka.
Diagnosis: A species of Ares with thorax constricted medially as well as distally. Apical horn much shorter than V spine, D very long and straight.
Original description: Test conical, two-segmented with a slight constriction in the middle part of thorax. Cephalis small, poreless, displaced on the dorsal side of the apical part of shell. Ventral spine long, curved, and bladed. Apical horn much shorter than ventral spine, obliquely directed upward and slightly curved. Dorsal spine straight, thin, very long, one to two times length of thorax, circular in cross section beyond thorax, three-bladed on the tangential portion. Pores of thorax quincuncially arranged, pore frames usually hexagonal, increasing in size distally. Distal half of thorax expanded, convex in outline, constricted terminally and built of intervening bars that become ever thinner. Distal border irregular.
Original remarks: Ares takemurai n. sp. is very close to A. avirostrum n. sp.: the A, V and D spines and proximal half of thorax are morphologically similar, the only major difference is the shape of the distal half of thorax. This part is expanded with a clear-cut border in A. virostrum, whereas in A. takemurai the distal half of thorax is also expanded, but the terminal part is constricted and made of intervening bars that become ever thinner.
Etymology: The species is named for Dr. Atsushi Takemura, Hygoyo University of Teacher Education, Japan, to honour his valuable contribution to the taxonomy of Jurassic Radiolaria.