Scrupocellaria reptans Linnaeus 1758
Creators: name: Vieira, Leandro M.
name: Spencer, Mary E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Bryozoa
Gymnolaemata
Cheilostomatida
Candidae
Scrupocellaria
Scrupocellaria reptans

description: Scrupocellaria reptans (Linnaeus, 1758)
(Figs 1, 2, 6–17, 24, 26)
‘ Mufcus coralloides pumilus ramofus’ Ray 1704: 15. [British coast]
‘Creeping coralline’ Ellis 1755: 37, pl. 20, figs b, B. [British coast]
Sertularia reptans Linnaeus, 1758: 815; 1767: 1315. [Oceano]
Cellaria reptans: Ellis & Solander 1786: 23. [British coast]
Cellularia reptans: Couch 1844: 127, pl. 23, fig. 3. [British coast]
Scrupocellaria reptans: Hincks 1880: 52 (part), pl. 7, fig. 6. [British coast] Scrupocellaria reptans: Prenant & Bobin 1966 (part): fig. 134.vi. [not Mediterranean specimens] Scrupocellaria reptans: Hayward & Ryland 1998: 270 (part). [British coast]
Material examined. Lectotype (chosen here): LSL n. 1248.31.I, no locality, but supposedly British Isles. Paralectotype (chosen here): LSL n. 1248.31.A–H, J–W; LSL n. 1248.32, no locality, but supposedly British Isles. Additional material: NHMUK 1849.2.12.51 (part), Scrupocellaria reptans (Linn.), on shells (dry), W.P. Cocks collection, Falmouth, Cornwall, U.K.; NHMUK 1884.12.12.9 (part), Scrupocellaria reptans (Linn.), O. Ridley det., Thanet coast; NHMUK 1915.4.2.13, Scrupocellaria reptans (Linn.), A.M. Norman collection, George Barlee coll. on algae; NHMUK 1963.3.6.35, Scrupocellaria reptans (Linn.), C.H. O’Donoghue det., Arisaig, Scotland, British Isles; NHMUK 1995.9.25.26, Scrupocellaria reptans (Linn.), J.S. Ryland leg. et det., Porth Hellick, Scilly Isles, 11th June 1972; NHMUK 1994.3.4.5–6, Scrupocellaria reptans (Linn.), P. Hayward det., J. Ellis leg., East side of Dun, St. Kilda, July 1993.
Comparative material. Scrupocellaria ellisi [Figs 4, 18–23, 25, 27]: (see next entry). Scrupocellaria sp. 1 [Fig. 28]: NHMUK 2010.12.6.1, Scrupocellaria reptans (part), C.H. O’Donoghue collection, Arisaig, Scotland. Scrupocellaria sp. 2 [Fig. 29]: NHMUK 1963.8.2.16, Scrupocellaria reptans, C.H. O’Donoghue collection, Alexandria, 1937, Stn 7, 66, 17–20 fms. Scrupocellaria sp. 3 [Fig. 30]: NHMUK 1911.10.1.355, Scrupocellaria reptans, A.M. Norman collection, Madeira. Scrupocellaria sp. 4 [Fig. 31]: NHMUK 2010.12.6.21–22, Scrupocellaria reptans (part), C.H. O’Donoghue collection, Gairloch, Scotland.
Redescription. Colony erect, branched, internodes comprising 4–10 zooids. Lateral edge of internode almost straight to slightly curved; chitinous joint passing across gymnocyst and below opesia in both outer zooids (C and D) of bifurcation, and across proximal gymnocyst of inner zooids (F and G). Autozooid subelongate, narrowed proximally, 0.350–0.460 mm long, 0.165–0.205 mm wide, with smooth proximal gymnocyst. Opesia oval, occupying distal half (almost) of zooid, cryptocyst very narrow, inconspicuous. Scutum inserted at midline of inner edge of opesia, branched, occupying most of opesia; slender, flattened, branched 2–3 times, with 6–9 distal stout projections; angled at 100–120°, with first branches about 0.035–0.045 mm wide, and secondary branches about 0.025–0.035 mm. Zooid spines as follows: 1 long distal spine, 3 outer spines, 1–2 inner spines; most proximal outer and inner spines directed frontally; axial zooid with 5 distal spines. One distolateral avicularium sometimes present on each zooid, distolaterally directed and obscured by outer distal spines; rostrum triangular, with slightly serrated lateral edge, mandible triangular. A very large avicularium present on gymnocyst of some zooids, almost aquiline, with a raised tubular base, rostrum serrated laterally, slightly curved and directed forwards; mandible triangular with hooked tip. A basal vibracular chamber often present proximally on basal surface of each zooid, 0.126–0.155 mm long, 0.085–0.115 mm wide, inconspicuous in frontal view; setal groove directed transversely, straight, with smooth seta longer than one zooid length. Single axial vibraculum. A rhizoidal foramen on proximal outer corner of vibracular chamber, absent in axial vibracula. Rhizoids with several close-spaced reverse hooks for most of their length. Ovicell hyperstomial, hemispherical, with 8–13 medium-sized rounded pores; 2 outer and 1–2 inner distal spines in ovicelled zooids.
Distribution. Western Britain.
description: Published as part of Vieira, Leandro M. & Spencer, Mary E., 2012, The identity of Sertularia reptans Linnaeus, 1758 (Bryozoa, Candidae), pp. 26-42 in Zootaxa 3563 on pages 31-34, DOI: 10.5281/zenodo.282940