Abrochtha Bryce, 1910 (ref. ID; 1923) or Abtrochtha Bryce, 1910 (ref. ID; 1345)
Order Philodinavida: Family Philodinavidae (ref. ID; 6565)

[ref. ID; 1923]
Corona with 2 ciliated areas on short pedicels, but without upper and lower lips. (ref. ID; 1923)

[ref. ID; 3137]
The wheel-organ is developed in the form of a bilobed wheel-discs. The upper lip and the lower lip lack completely. Only one species. (ref. ID; 3137)