Cribellopora souleorum, Dick & Tilbrook & Mawatari, 2006
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publication ID |
https://doi.org/ 10.1080/00222930601062771 |
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persistent identifier |
https://treatment.plazi.org/id/3C0487C6-FF9B-9413-BAC2-C170FB833FC7 |
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treatment provided by |
Felipe |
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scientific name |
Cribellopora souleorum |
| status |
sp. nov. |
Cribellopora souleorum View in CoL new species
( Figure 13A–C View Figure 13 )
Type material
Holotype: NHM 2006.7.21.19, unbleached specimen; Kapa’a Beach Park, Island of Hawaii; 1 March 2005; M. H. Dick, collector; intertidal, 0.15 m low tide . Paratypes: same locality and collecting information as for holotype. Paratype 1, NHM 2006.7.21.20, specimen HI-3 (part), bleached, coated for SEM. Paratype 2, YPM-38557, specimen HI- 8, bleached, coated for SEM; with Parasmittina serrula . Paratype 3, YPM-38558, unbleached specimen.
Etymology
The species is named in honour of John D. and Dorothy F. Soule, who studied Hawaiian bryozoans for decades.
Measurements
ZL, 0.35–0.50 (0.410¡0.041). ZW, 0.25–0.36 (0.300¡0.031). OrL, 0.06–0.07 (0.066¡0.004). OrW, 0.08–0.09 (0.085¡0.006). OvL, 0.14–0.20 (0.167¡0.021). OvW, 0.19–0.20 (0.198¡0.004) (ovicell n 56).
Description
Colony small, the largest observed 4 mm × 3 mm, unilaminar, encrusting, sheet-like, white in colour. Zooids irregularly hexagonal to barrel-shaped, distinct, separated by a sharp incision, the lateral walls sloping slightly so that a small amount of lateral gymnocyst is visible, forming a sharp boundary with frontal wall. Frontal wall ( Figure 13A View Figure 13 ) slightly to moderately convex, smooth, imperforate except for a single row of large, stellate pores along each lateral margin. Primary orifice ( Figure 13B View Figure 13 ) semicircular, typically broader than long, with a small, distinct, teardrop-shaped median sinus with a restricted opening; proximal margin straight except for sinus; condyles a long, smooth cap on condylar shelves flanking sinus. Smooth gymnocystal calcification surrounds orifice, forming a flat, slightly raised flange proximal to orifice. Three pairs of short, straight spines flank the orifice laterally and distally. Peristome lacking. Ovicell ( Figure 13A View Figure 13 ) raised, globose, conspicuous,
saxatilis Hayward and Ryland : (D) autozooid; (E) enlargement showing primary and secondary orifices. (F) Crepidacantha carsioseta Winston and Heimberg : autozooids and one ovicellate zooid. (G, H) Crepidacantha longiseta Canu and Bassler : (G) autozooids and one ovicellate zooid; (H) unbleached specimen showing long avicularian mandibles and dense marginal setose spines. All specimens except (H) bleached. Scale bars: 400 Mm (A, C); 100 Mm (B, E); 500 Mm (D, F–H).
slightly broader than long, resting on frontal wall of succeeding zooid, smooth textured, with numerous minute pores difficult to observe with light microscopy; pores sometimes covered by smooth calcification in central and proximal region; orificial margin of ovicell with a narrow flange, sometimes upturned. Ancestrula ( Figure 13C View Figure 13 ) of mixed type; tatiform with opesial opening surrounded by 11 spines, but with frontal wall and orifice of mature form inside opesia; one pair of stellate pores proximolateral to orifice. Budding pattern spiral; ancestrula produces one distal zooid, with the following two periancestrular zooids formed in angle between preceding daughter zooid and ancestrula, on one side only. Avicularia lacking.
Remarks
The following combination of characters distinguishes Cribellopora souleorum from previously described species: single row of stellate pores along lateral margins; constricted opening to sinus; six oral spines; long, smooth condyles; ovicell covered with minute pores.
Distribution
Kapa’a Beach on the northwest coast of Hawaii Island is the only known locality.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.