Conescharellina, d'Orbigny, 1852

Bock, Philip E. & Cook, Patricia L., 2004, A review of Australian Conescharellinidae (Bryozoa: Cheilostomata), Memoirs of Museum Victoria 61 (2), pp. 135-182 : 141

Key to Australian species of Conescharellina

1. Avicularian rostra acute, longer than orifice......... 2

— Avicularian rostra rounded, smaller than orifice...... 6

2. Colonies domed, height and/ or width> 3mm ....... 3

— Colonies small, distinctly conical, higher than wide. Avicularia paired, lateral oral, orientated laterally......................................... C. biarmata

3. Avicularia lateral oral, single.................... 4

— Avicularia lateral oral paired, orientated laterally and adapically........................... C. ecstasis

4. Avicularia randomly orientated........ C. angulopora

— Avicularia orientated laterally and adapically........ 5

5. Colonies domed, width and height subequal. Solid antapically. Avicularia with lateral cryptocyst lamina, and 3 large ligulae......................... C. magniarmata

— Colonies becoming very large, wider than high, diameter 10 mm. Antapical surface hollow, covered by cancelli...................................... C. cognata

6. Colonies large, height and / or width> 4mm ........ 7

— Colonies small, height and / or width <3mm ....... 10

7. Root pores circular, surrounded by avicularia....... 8

— Root pores lunate, with paired avicularia........... 9

8. Colonies with patent orifices; avicularia lateral and adapical, visible on antapical surface of marginal zooids........................................ C. eburnea

— Orifices at the base of a long peristome, that is not raised at the colony surface; avicularia minute, scattered and paired, adapical........................ C. plana

9. Colonies conical, higher than wide, height up to 5 mm; avicularia and root pores in series alternating with orifices; root pores without small avicularia; rostra with non-palatal spinules.............................. C. diffusa

— Colonies flat, up to 13 mm diameter, or small and discoidal; avicularia scattered or single, antapical and peristomial; root pores with paired avicularia.............................................. C. obscura

10. Colonies with lunate root pores with paired avicularia 11