Garstang, 1933
In young oozooids alimentary canal extending horizontally in the sagittal plane; endostyle from M2 to M5; stomach at M7. In both phorozooids and gonozooids, alimentary canal straight, extending from M43/4 to M71/4. Endostyle from M21/4 to M43/4. Neural ganglion at M31/2. Gill-septum vertical, slightly arched, beginning dorsally and ventrally in M5, posterior bend to M51/2. With 5 pairs of gill-slits. Ovary pear-shaped at M6. Testis club-shaped, elongate in the antero-posterior axis. Larval, gastrozooid, and old nurse stages unknown.
Species treated:
Dolioloides rarum (Grobben, 1882)