Ammatophoroides, Martino & Rosso & Taylor & Chiu & Fujita & Kitamura & Yasuhara, 2025

Genus AMMATOPHOROIDES gen. nov. Di Martino, Rosso, and Taylor zoobank.org/ 49F124DF-2C76-4699-B923-D0DF6BE8AE89

Type species. Ammatophoroides angeloi gen. et sp. nov. Di Martino, Rosso, and Taylor.

Etymology. Greek suffix ‘-oides’ meaning -like, referring to its similarity to species of the genus Ammatophora Norman, 1903 .

Diagnosis. Ammatophora -like calloporid with blunt autozooidal boundaries, smooth gymnocyst filling the space between autozooids, flat to slightly convex especially around the lateral and distal zooidal boundaries, sometimes nodular but never forming thick tubercles as in Ammatophora ; interzooidal communications via uniporous septula. An oval to ovoidal beaded rim outlining the cryptocystal portion of the zooid; cryptocyst granular, forming a flat depressed shelf proximally, occupying one-third to half of the frontal surface, narrowing and sloping gradually laterally, tapering distally, completely disappearing in ovicellate zooids. Opesia rounded trapezoidal to bell-shaped; muscle scars visible through the opesia. Ovicells subimmersed; ooecium cap-like, smooth, imperforate. Spines and avicularia absent.

Remarks. Among calloporid genera, Ammatophora is the most similar to the new genus. Both genera share a granular cryptocyst forming a distinct shelf proximal to the opesia, and both lack spines, avicularia, and pore chambers. The main differences are the absence of large interzooidal nodular kenozooids in Ammatophoroides gen. nov., which are typical of Ammatophor a ( Winston and Vieira, 2013), and the ovicell, which is subimmersed in the new genus and hyperstomial in Ammatophora (Hayward and Ryland, 1998) .