Tetralonche hastata

(Haeckel, 1860)

Four main, equatorial spicules cylindrical in the basal half, spear-shaped or lanceolate in distal half, with thin edges, little longer, but five to eight times as broad as sixteen smaller spicules, which are cylindrical, of equal breadth throughout whole length, with bifid apex. Central capsule yellow, spherical, or lenticular. Length of the 4 major spicules: 0.066 mm, breadth in middle: 0.005 mm, at the apex: 0.008 mm; length of 16 smaller spicules: 0.054 mm, breadth: 0.001 mm.

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