Reteporella vitta Denisenko 2022, n. sp.

• Main Author: Denisenko, Nina V.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2022
• Subjects: Biodiversity; Taxonomy; Animalia; Bryozoa; Gymnolaemata; Cheilostomatida; Phidoloporidae; Reteporella; Reteporella vitta; Paamiut
• Online Access: https://doi.org/10.5281/zenodo.6506289; http://treatment.plazi.org/id/93797F2BFFB25E0B78E04E21D66CB675

Reteporella vitta n. sp. (Figs 3, 4; Table 2) Material examined. Holotype: ZIN 1 /50743, one colony; Stn 2016_PA_5_58 (64.8872833251953° N, ˗ 34.5760166803996° W; 948 m; T 3.24 °C); collected by Alfredo III trawl, MT Paamiut , fish-shrimp trawl assessment survey. July 2016. Diagnosis. Reteporella with delicate, reticulate colony, large fenestrulae and dimpled frontal and abfrontal surfaces. Trabeculae long, consisting of one to three alternating series of autozooids without doubling at bifurcations. Autozooids with 1‒3 large marginal pores and with wavy edges; primary orifice semicircular, slightly wider than long; condyles large, robust, trapezoidal; spines absent; peristome intermediately tall, consisting of two unequal lobes, often closed forming a roundish spiramen. Circular suboral avicularium with prominent chamber located on larger peristomial lobe; distal rostrum finely denticulate or smooth, crossbar complete, columella absent, palate narrow; frontal avicularia oval with complete crossbar, no columella and narrow palate. Abfrontal avicularia nearly circular, distal rostral margin denticulate, without palate. Ovicells prominent, sometimes with a short labellum and with closed fissure in late ontogeny. Etymology. Latin “ vitta ” (lacy), alluding to the delicate, graceful, lacy appearance of the colony. Description. The colony is reticulate, delicate and shiny. The frontal sides of the autozooids face towards the inner side of the rosette, as it is common in Reteporella species. As the colony grows, it develops as asymmetrical lateral lobes that curl outwards and backwards, transforming the colony into a funnel, in which, once the lobes come into contact with each other, the abfrontal side becomes the inner surface of the funnel, and the frontal side its outer surface (Fig. 3A, B). The colony is up to 60 x 25 mm in size; the fenestrulae are large, elongate, rhomboidal, polygonal or oval; their length (1.9‒2.4 mm) is twice their width (0.7‒1.05 mm). Both surfaces of the colony (i.e. zooidal frontal shield ...