Oulangia stokesiana Milne-Edwards & Haime, 1848

Lam, Katherine, Morton, Brian & Hodgson, Paul, 2008, Ahermatypic corals (Scleractinia: Dendrophylliidae, Oculinidae and Rhizangiidae) recorded from submarine caves in Hong Kong, Journal of Natural History 42 (9 - 12), pp. 729-747 : 742

Oulangia stokesiana Milne-Edwards & Haime, 1848

( Figure 4E )

Oulangia stokesiana Milne-Edwards & Haime, 1848:183 , Plate 7, Fig. 4

Oulangia stokesiana Faustino, 1927:111 , Plate 15, Fig. 6–7

Oulangia stokesiana Wells, 1956 :F409, Fig. 307, 2a, b; Zou, 1988:78, Plate IV, Fig. 1–3

Description

Tympanoid solitary corallum. Skeleton is light brown. The top edge of the granulated septa is white. Corallites cylindrical to slightly oval,, 7.2 mm and 9.4 mm in longer and shorter diameters and 5–6 mm in height. Septa of first two or three cycles dentate and exert. Septal order is hexameral. The duplicate P. plan is formed by five cycles of which the fifth is incomplete. Granulated columella merges with the inner septal dentitions. Fossa shallow. Living corallites are light pink.

Type locality

The Philippines.

Distribution

Shallow waters in the Indo-Pacific ( Wells 1956) and South China Sea ( Zou 1988), including Japan ( Ogawa and Matsuzaki 1992) and the Philippines and Conic Island Cave, Hong Kong (this study).

Figures

Figure 1. Balanophyllia sp. and Dendrophyllia sp. A–B, calicular (longer diameter56.5 mm) and side view of four solitary corallites of B. eguchii (maximum height59.02 mm); C–D, calicular (longer diameter514.9 mm) and top view of a B. ponderosa colony (height531.3 mm); E–G, calicular (longer diameter57.8 mm) and side views of two colonies of D. arbuscula (colony size of F and G535.1 mm and 40.1 mm, respectively); H–I, top and side views of a small D. arbuscula colony (height518.2); J–L, calicular (longer diameter511.7 mm) and top views of two colonies of D. ehrenbergiana (height of K and L513 mm and 19.8 mm, respectively); M–N, calicular (longer diameter513.4 mm) and side view of a colony of D. coccinea (height527 mm); O–P, calicular (longer diameter58 mm) and side view of colony of D. compressa (height533.1 mm); Q–R, calicular (longer diameter59.9 mm) and four solitary corallites of D. gracilis (maximum height521.2 mm).

Figure 2. Tubastrea sp. A–B, calicular (longer diameter58.2 mm) and top view of a colony of T. coccinea (length×width598.7 mm×34.6 mm); C–D, calicular (longer diameter56.37 mm) and top view of a colony of T. faulkneri (length×width568.9 mm×21.56 mm); E–J, calicular and side views of colonies of T. diaphana (height of F533 mm, height of G and H518.5 mm, longer calicular diameter and height of I and J59.9 and 21.5 mm, respectively); K–L, calicular (longer diameter59.5 mm) and top view of a colony of T. sibogae (height531.3 mm); M–O, calicular (longer diameter58.3 mm), top and side view of a colony of T. turbinata (height522.7 mm).

Figure 3. Tubastrea diaphana collected from Conic Island cave being grazed by three individuals of Aeolidiella sp. The white area of the skeleton is the grazed area. One Aeolidiella is on the top of the colony, the second is on the bottom and the third one was dislodged during collection.

Figure 4. Cyathelia sp., Culicia sp. and Oulangia sp. A–B, calicular (longer diameter55.1 mm) and colony of Cyathelia axillaris (height535.85 mm); C, calicular of Culicia japonica (longer diameter55.9 mm); D, caliculars of Culicia rubeola (colony size515.3 mm×14 mm) and E, calicular of Oulangia stokesiana (longer diameter59 mm).