Frontohornera Grischenko & Gordon & Melnik 2018, n. gen.

• Main Authors: Grischenko, Andrei V., Gordon, Dennis P., Melnik, Viacheslav P.
• Format: Text
• Language: unknown
• Published: Zenodo 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Bryozoa; Stenolaemata; Cyclostomatida; Horneridae; Frontohornera; Antarctic; Borg; Pacific; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.5989794; https://zenodo.org/record/5989794

Frontohornera n. gen. Type species. Frontohornera frontalis n. sp. Etymology. Latin, frontalis , frontal, plus Hornera , a cyclostome genus. Gender feminine. Diagnosis. Colony erect, dichotomously branching in one plane, with distinct frontal and abfrontal surfaces. Surface textured, but lacking conspicuous longitudinal ribbing and furrows. Autozooidal peristomes with internal spinules and simple circular apertures lacking apertural spines. Pores and cancelli sparse. Gonozooid frontally borne, simple and sac-like, with short, frontally curving ooeciostome. Ancestrular zooid erect, a pair of daughter zooids budded laterofrontally from its base. Remarks. Frontohornera n. gen. differs most obviously from Hornera Lamouroux, 1821 in having a frontally borne gonozooid. In all species of Hornera the incubation chamber is borne abfrontally. In Calvetia Borg, 1944, distinct frontal and abfrontal faces are lacking, with zooidal peristomes opening around the entire branch surface. : Published as part of Grischenko, Andrei V., Gordon, Dennis P. & Melnik, Viacheslav P., 2018, Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining, pp. 1-91 in Zootaxa 4484 (1) on page 29, DOI: 10.11646/zootaxa.4484.1.1, http://zenodo.org/record/1437848 : {"references": ["Lamouroux, J. V. F. (1821) Exposition Methodique des genres de l'ordre des polypiers, avec leur description et celles des principales especes figurees dans 84 planches; les 63 premiers appartenant a l'Histoire naturelle des Zoophytes d'Ellis et Solander. V. Agasse, Paris, 115 pp., 84 pls.", "Borg, F. (1944) The stenolaematous Bryozoa. Further Zoological Results of the Swedish Antarctic Expedition 1901 - 1903, 3 (5), 1 - 76, 16 pls."]}