Nimba Jullien

Dick, Matthew H., Tilbrook, Kevin J. & Mawatari, Shunsuke F., 2006, Diversity and taxonomy of rocky-intertidal Bryozoa on the Island of Hawaii, USA, Journal of Natural History 40 (38 - 40), pp. 2197-2257 : 2238-2239

Genus Nimba Jullien in Jullien and Calvet, 1903

Nimba saxatilis Hayward and Ryland, 1995

( Figure 13D, E )

Nimba saxatilis Hayward and Ryland 1995, p 558 , Figure 11D, E .

Nimba saxatilis: Tilbrook et al. 2001, p 83 , Figure 8D .

Measurements

ZL, 0.55–0.80 (0.648¡0.077). ZW, 0.28–0.39 (0.330¡0.049) (zooid n 57). OrL, 0.09– 0.10 (0.099¡0.003). OrW, 0.12–0.14 (0.126¡0.007) (orifice n 55).

Description

Colony encrusting, with autozooids arranged in irregularly branching uniserial series. Zooids distinctly longer than broad, rounded distally. Lateral walls low, perforate, separated from frontal wall by suture line. Frontal wall ( Figure 13D ) slightly convex, finely tuberculate, with tiny marginal pores in distal half and tiny pores over entire surface near proximal end. Primary orifice ( Figure 13E ) semicircular, with a broad, shallow sinus with straight proximal margin, separated from anter by a shelf on each side bearing a small condyle. Peristome ( Figure 13D ) tall, smooth, cylindrical, flared slightly at top, sometimes eroded away; secondary orifice oval or circular. Oral spines and avicularia lacking.

Distribution

Great Barrier Reef, Australia; Vanuatu (see synonymies for references). This is the first record for the Hawaiian Islands.

Superfamily MAMILLOPOROIDEA Canu and Bassler, 1927 Family CREPIDACANTHIDAE Levinsen, 1909

Figures

Figure 8. (A, B) Drepanophora corrugata (Thornely): (A) autozooids; (B) enlargement of orifice from distal view showing lyrula and condyles. (C, D) Escharoides longirostris (Dumont): (C) autozooids and one ovicellate zooid; (D) enlargement of orifice and lateral oral avicularium. All specimens bleached. Scale bars: 500 Mm (A, C); 100 Mm (B, D).

Figure 11. (A) Hippopodina iririkiensis Tilbrook: autozooids and ovicellate zooids. (B, C) Cosciniopsis lonchaea (Busk): (B) autozooids and ovicellate zooids; (C) enlargement showing shapes of primary and secondary orifices. (D, E) Calyptotheca kapaaensis n. sp., holotype (NHM 2006.7.21.15): (D) autozooids; (E) enlargement of primary orifice and suboral avicularium. (F) Cheiloporina haddoni Harmer: autozooids and one ovicellate zooid (upper left). All specimens bleached. Scale bars: 1 mm (A, B, F); 200 Mm (C); 500 Mm (D); 100 Mm (E).

Figure 13. (A–C) Cribellopora souleorum n. sp., paratype 1 (NHM 2006.7.21.20): (A) autozooids and ovicellate zooids; note predation hole in ovicell at right and scars on both ovicells; (B) enlargement of orifice; (C) ancestrula (lower right) and three periancestrular zooids; note predation holes in frontal walls of two zooids. (D, E) Nimba