Parapetalotricha
Parapetalotricha Hada, 1970 (ref. ID; 3544 original paper)
[ref. ID; 3544]
The lorica of the species of the new genus differs from that of Petalotricha in having double collars, inner and outer. Therefore Petalotricha entzi Kofoid with an inner collar belongs to the new genus. (ref. ID; 3544)
- Parapetalotricha meridiana Hada, 1970 (ref. ID; 3544 original paper)
Descriptions
The lorica is hyaline and consists of double collars and a conical bowl. The outer collar is low funnel-shaped, while the inner is shorter and straight. The bowl gradually tapers to the distal end. The entire surface is smooth without striae and fenestellae. (ref. ID; 3544)
Comments
The lorica of the new species is different from that of Parapetalotricha entzi (Kofoid) and all known forms of Petalotricha in complete absence of striae and fenestellae on the lorica. (ref. ID; 3544)
Type locality
The new species was detected in the material obtained from the antarctic sea of Syowa Station. (ref. ID; 3544)
Measurements
Length 30; oral diameter of an outer collar 22; one of an inner collar 17 um. (ref. ID; 3544)