GENUS JANUSYA GEN. NOV.

Zoobank registration: urn:lsid:zoobank.org:act: 7F1DD58A-C896-4DF1-9DDC-817B4D30E400.

Type species: Janusya indica sp. nov.

Etymology: The new genus is dedicated to Jean Vacelet, who is affectionately known as Janus, in recognition for all his work on Porifera, including calcareous sponges.

Diagnosis: Calcinea in which the cormus comprises a typical clathroid body. A stalk may be present. The skeleton contains regular (equiangular and equiradiate) or subregular triactines and tetractines. Tetractines are less abundant than triactines, sometimes even rare, but they always have needle-like apical actines. Diactines may be added. The aquiferous system is asconoid.