Leucascus, DENDY, 1892

Klautau, Michelle, Lopes, Matheus Vieira, Tavares, Gabriela & Pérez, Thierry, 2022, Integrative taxonomy of calcareous sponges (Porifera: Calcarea) from Réunion Island, Indian Ocean, Zoological Journal of the Linnean Society 194, pp. 671-725 : 697

GENUS LEUCASCUS DENDY, 1892

Type species: Leucascus simplex Dendy, 1892 .

Diagnosis: ‘Copiously branched and anastomosed choanocyte tubes covered by a continuous membrane. The exhalant aquiferous system is represented by a well-developed atrium delimited by a membrane with no choanoderm, supported by a specific skeleton of triactines and/or tetractines. The size of the spicules of the choanocyte tubes and of the cortical and atrial membranes is similar. Apical actine of the tetractines ornamented with spines. Solenoid aquiferous system’ ( Cavalcanti et al., 2013).