Skeletons in confusion: a review of astrophorid sponges with (dicho-) calthrops as structural megascleres (Porifera, Demospongiae, Astrophorida) Author Van Soest, Rob W. M. Author Beglinger, Elly J. Author De Voogd, Nicole J. text ZooKeys 2010 68 1 88 http://dx.doi.org/10.3897/zookeys.68.729 journal article http://dx.doi.org/10.3897/zookeys.68.729 1313-2970-68-1 Calthropella digitata Pulitzer-Finali, 1993 Calthropella digitata Pulitzer-Finali 1993 : 252, Figs 2-3. Material examined. None. Holotype MSNG 48290 Description. Branching mass of 5 x 3 cm. Confused skeleton in which giant oxeas (2700 x 9 µm ) predominate. Next to this there are large dichotriaenes with cladomes of 400-550 µm wide and similar sized rhabdomes of 400-650 x 35-45 µm . Spherasters of 8-14 µm comprise the microscleres. Habitat. Deep water, 120 m. Distribution. North Kenya Banks, E Africa. Remarks. This is in all probability not a Calthropella as it has a dense skeleton with confusedly arranged oxeas. This species is best assigned to Stelletta s.l..