Cribrilina corbicula ( O’Donoghue and O’Donoghue, 1923 )

Dick, Matthew H., Grischenko, Andrei V. & Mawatari, Shunsuke F., 2005, Intertidal Bryozoa (Cheilostomata) of Ketchikan, Alaska, Journal of Natural History 39 (43), pp. 3687-3784 : 3720

Cribrilina corbicula ( O’Donoghue and O’Donoghue, 1923)

( Figure 7C–F )

Membraniporella corbicula O’Donoghue and O’Donoghue 1923, p 30 , Plate 3, Figure 20 .

Figures

Figure 7. (A, B) Cribrilina annulata (Fabricius): (A) autozooids and frontally budded dwarf ovicellate zooids; bleached; (B) autozooids (lower right), ovicellate zooids in primary layer (lower centre and left), and frontally budded dwarf ovicellate zooids (top); bleached. (C–F) Cribrilina corbicula (O’Donoghue and O’Donoghue): (C) astogenetically young autozooids; unbleached; (D) ovicellate zooids in primary layer and frontally budded dwarf ovicellate zooids; bleached; (E) ovicellate zooids in primary layer and newly forming dwarf ovicellate zooids with membranous front only (upper left of centre) or with incomplete costae (lower right and centre); note compressed, subspatulate suboral costae; unbleached; (F) ancestrula and surrounding zooids; unbleached. Scale bars: 500 Mm (A–E); 1 mm (F).

Figure 20. Microporella ketchikanensis n. sp.: (A) group of marginal zooids with four to five distal spines per zooid; (B) group of marginal zooids with three distal spines per zooid; (C) enlargement of orifice, ascopore, and marginal avicularium; (D) enlargement of proximal orificial margin and ascopore; (E) enlargement of ascopore; (F) group of zooids, two forming ovicells and two with complete, unribbed, umbonate ovicells; note zooid with rare complement of two marginal avicularia. All specimens bleached. Scale bars: 500 Mm (A, B, F); 100 Mm (C); 50 Mm (D); 20 Mm (E).