Smittipora cordiformis Harmer, 1926

Asagabaldan, M. A., Bourgougnon, N., Bedoux, G., Kristiana, R., Ayuningrum, D., Widyananto, P. A., Muchlissin, S. I., Magueresse, A., Sabdono, A., Trianto, A. & Sa, O. K. Radja-, 2019, Some Cheilostomata (Bryozoa) from the Java Sea, central Indonesian Archipelago with a description of Pleurocodonellina jeparaensis n. sp. (Smittinidae), Zootaxa 4668 (3), pp. 329-342 : 334-335

Smittipora cordiformis Harmer, 1926

( Figs 2C , 4 D–F; Table 3 )

Smittipora cordiformis Harmer, 1926 (part): p. 260, pl. 16, figs 14–18. Hayward & Ryland, 1995: p. 543, fig. 6c. Tilbrook et al., 2001: p. 52, fig. 6g. Tilbrook, 2006: p. 74, pl. 12a. Dick & Grischenko, 2017: p. 167, figs a, b.

Material examined. TAB 10 from station JP 01-1.

Description Colony unilaminar, encrusting, sheet-like ( Fig. 4D ), operculum dark brown. Autozooids distinct, hexagonal to irregularly polygonal, longer than wide. Cryptocyst extensive, concave, uniformly granulated. Opesia longer than wide, D-shaped ( Fig. 4F ). Avicularia interzooidal ( Fig. 4E ), shorter and narrower than autozooids, opesia elongate, somewhat oblong, with granular cryptocyst, distal margin smooth and proximal border denticulate.

Remarks. The distinctive characters of Smittipora cordiformis are also seen in a closely similar Miocene fossil from Borneo, Indonesia ( Di Martino & Taylor 2014). The species differs from Smittipora acutirostris Canu & Bassler, 1928 ( Brazil and Caribbean) in the acute distal tips of avicularia.

Distribution. Smittipora cordiformis was originally collected by the Siboga Expedition from Flores Island and Sulawesi (Harmer 1916). It is broadly distributed in the Indo-West Pacific, including the Great Barrier Reef ( Hayward & Ryland 1995), Vanuatu ( Tilbrook et al. 2001), Solomon Islands ( Tilbrook 2006) and Okinawa ( Dick & Grischenko 2017).

Figures

FIGURE 2. Preserved samples of Recent bryozoans from the Java Sea, Indonesia. A. Licornia ferox (Busk, 1852). B. Poricel- laria ratoniensis Waters, 1887. C. Smittipora cordiformis Harmer, 1926. D. Celleporaria inaudita Tilbrook, Hayward & Gor- don, 1991. E. Pleurocodonellina jeparaensis n. sp. F. Triphyllozoon indivisum Harmer, 1934. Scale bars: A = 3 mm; B = 6 mm; C = 4 mm; D = 3 mm; E =1 mm; F = 4 mm.

FIGURE 4. A–C. Poricellaria ratoniensis Waters, 1887.A. General view of the colony. B. Close-up of orifice and avicularia. C. Close-up of avicularia with acute rostrum. D–F. Smittipora cordiformis Harmer, 1926. D. General view of colony. E. Close-up of interzooidal avicularium. F. Close-up of D-shaped opesia. Scale bars: A = 250 µm; B, C, E, F = 50 µm; D = 400 µm.

Tables

TABLE 3. Measurements (µm) of Smittipora cordiformis (TAB 10). Min. Minimum; Max. Maximum; SE. Standard error; N. Sample size.

	Min	Max	Mean	SE	N
Zooid length	435	643	518	63	11
Zooid width	192	419	302	71	11
Opesia length	150	179	166	10	11
Opesia width	128	168	146	10	11
Avicularium length	392	495	439	48	5
Avicularium width	171	214	199	16	5