Luffisphaera bulbochaete  Vørs, 1993

Diagnosis: Spine scales consist of a cylindrical base supporting a dome-shaped part, which gradually tapers to a narrow tip. This tip is mounted by a thin spine. The lattice of the dome is composed of regular hexagonal perforations. Cell spherical, 34 µm in diameter (dried cells) covered with a dense layer of scales. Most of these are base scales, while 20-40 are spine scales. Spine scales consist of a cylindrical base supporting a dome-shaped part, which gradually tapers to a narrow tip. This tip is mounted by a thin spine. The base comprises two differently patterned parts: a proximal lattice with an irregular pattern, and a distal lattice with a regular pattern of square perforations. The lattice of the dome is com- posed of regular hexagonal perforations. The tip of the dome and the spine consist of smooth, homogeneous, non-lattice material. The spine scales are 1.5-2.2 µm in total length.

Ecology: Marine, Belize.