| Diagnosis |
Colonies minute, stems fragile, up to 15 mm high, main stem unfascicled. Hydrocaulus arising from stolonal hydrorhiza; irregularly branched in radiate planes up to second order over its whole extension; pedicels arising directly from main stem. Perisarc of main stem weakly developed, brown up to half its length, single tubes 0.12-0.15 mm in diameter, not annulated. Pedicels with groups of three to four rings at their origin, 0.11-0.13 mm in diameter, with weakly developed perisarc. Hydranths whitish to pale brown, slender, 0.20-0.68 mm in height, 0.20-0.32 mm in diameter (measured in the body region just below tentacles), without a distinct groove in the aboral region; hypostome sometimes prominent; tentacles 25-28, occurring in one whorl below hypostome. Zooxanthellae present in hydranth and in coenosarc. Female gonophores present in holotype colonies. Female gonophore styloid in a late development stage. Mature blastocoels have no sign of tentacles and hypostome; spadix shed. Presence of two size classes of heterotrichous microbasic euryteles. Small microbasic eurytele, oval, commonly distributed over hydranth body, hypostome, coenosarc, and tentacles. Large microbasic euryteles, bean-shaped, shaft thick, crossing two-thirds the length of undischarged capsule; sparingly distributed over hydranth body, hypostome, and coenosarc (Ref. 3086). |