Table 3.

Corallite characteristics of massive Porites clades found in Guam river deltas and fore reefs.

Clade	Determination	Colony morphology	Colony surface	Colony color	Tentacles during day	Corallite diameter	Excavation	Pali	Septa thickness	Ventral triplet	Wall thickness
I	P. evermanni-like	1	Glomerate, conical bumps	Purple, purple-brown	1	1.3–1.6	1	6 very prominent	1&3	Variable	1
II	P. lutea-like	1	Smooth bumps, often forming ridges	Light brown, green–brown, blue-purple	1	1.1–1.4	1	5–6 moderately prominent	3	Fused with trident	1
III	P. lobata-like	1	Smooth, or with low bumps	Brown	1	1.4–1.8	2	Poorly developed or absent	1&3	Free	3
IV	P. solida-like	2	Smooth, or with low bumps	Brown, purple-brown	2	1.5–2.0	2	Poorly developed or absent	1&3	Free	3
V	P. murrayensis-like	1	Moderately sized bumps	Brown	1&2	1.1–1.4	2/3	4 moderately prominent, 3 short	1&3	Usually free	2
VI	P. australiensis-like 1	1	Moderately sized bumps	Purple, purple-brown	1	1.2–1.5	1/3	5 moderately prominent	3	Variable	3
VII	P. australiensis-like 2	1	Small or moderately sized bumps	Brown, green–brown, blue-brown	1	1–1.5	1/3	5 moderately prominent	3	Variable	3

CM: colony morphology, TDD: tentacles during day, CD: corallite diameter, ST: septa thickness, WT: wall thickness.

Values: CM: 1 = mounding; 2 = raised encrusting. TDD: 1 = partially retracted; 2 = retracted. Excavation: 1 = shallow; 2 = deep; 3 = moderate. Septa thickness: 1 = thin; 2 = thick; 3 = moderate. Wall thickness: 1 = thin; 2 = thick; 3 = moderate.