Cigclisula turrita (Smitt, 1873)

Judith L Winston, 2016, Bryozoa of Floridan Oculina reefs, Zootaxa 4071 (1), pp. 1-81 : 65-68

Cigclisula turrita (Smitt, 1873)

( Fig. 37 ; Table 36 )

Lepralia turrita Smitt, 1873: 65 , pl. 11, figs 226–228.

Holoporella turrita: Canu & Bassler 1923: 179 , pl. 46, fig. 1. Cigclisula turrita: Banta & Carson 1977: 400 , figs 4E, 7; Winston 1982: 147, fig. 79. Trematooecia turrita: Winston 2005: 105 , figs 291–297.

Cigclisula turrita: Almeida et al. 2014: 20 , fig. 11.

Material examined. VMNH no. 70658; USNM no. 1283261.

Description. Colonies encrusting, multilaminar ( Fig. 37 A), developing into mounds a few mm in size, pale pink when alive. Even young colonies that are still unilaminar are conspicuously raised above substratum because of their deep-bodied zooids. Zooids with irregularly polygonal borders and central orifice surrounded by 4–5 flattipped spiniform tubercles ( Fig. 37 D). Frontal shield granular, thickly calcified, with small pores scattered over surface. Orifice hoof-shaped, with evenly rounded anter and broad, shall poster demarcated by triangular condyles ( Fig. 37 E). Oval adventitious avicularia in two size classes, the smaller with serrated distal rostral margins, usually buried in peristome between or at ends of tubercles; the larger with enlarged, more-spatulate mandible and smooth rostrum. Ooecia immersed in calcification of spines and peristome, opening into peristome; with frontal grid of small pores. Embryos red.

Remarks. Cigclisula turrita -like forms have a long history in the Caribbean-western Atlantic, and have undergone considerable radiation. Almeida et al. (2014) revised the genera Cigclisula , Trematooecia and Colatooecia , placing them in the celleporid family Colatooeciidae .

Distribution. Florida and Caribbean.

Figures

FIGURE 37. Cigclisula turrita (Smitt, 1873): A, mounded colony; B, zooids showing orifices and frontal avicularia; C, another group of zooids; D, peristomial tubercles; E, close up of orifice. Scale bars: A, 1 mm; B, 0.3 mm; C, D; 0.5 mm; E, 0.1 mm.

Tables

TABLE 36. Measurements in mm of Cigclisula turrita (Smitt, 1873).

	Lz	Wz	Lo	Wo	Lov	Wov
N	18	18	18	18	5	5
Mean	0.563	0.476	0.170	0.153	0.274	0.432
SD	0.040	0.046	0.021	0.014	0.048	0.064
Min	0.504	0.378	0.126	0.126	0.198	0.342
Max	0.630	0.558	0.198	0.180	0.324	0.504