Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea) Author Alvizu, Adriana Author Xavier, Joana R. Author Rapp, Hans Tore text Zootaxa 2019 2019-06-13 4615 2 201 251 journal article 26507 10.11646/zootaxa.4615.2.1 f8ebafc8-79ab-4eef-b52b-8c207ff2b1ec 1175-5326 3244638 9B9884DA-18D5-4BC9-950F-0436E075AAF8

TABLE 10. Spicule measurements of Megapogon schiaparellii sp. nov. (holotype MNA08193).

Spicules	Length (µm)				Width (µm)				n
(--) Measurements not available.
	Min	Mean	Max	SD	Min	Mean	Max	SD
Trichoxeas	629.6	742.4	856.7	74.2	3.0	3.8	4.4	0.6	15
Diactines I	269.1	494	640	101.2	8.0	16.4	24.5	4.21	30
Diactines II	114.0	151.0	182.0	15.1	4.3	5.65	6.7	0.81	30
Microdiactines	58.8	71.1	92.0	8.7	2.4	3.94	6.3	0.9	30
Cortical triactines
Unpaired actine	157.7	205.7	279.3	42.6	7.3	10.5	14.0	1.9	15
Paired actines	128.6	157.6	190.5	21.7	7.0	10.1	13.6	2.4
Atrial triactines
Unpaired actine	174.2	335	460.6	84.8	8.3	10.8	13.5	1.3	25
Paired actines	133.7	187.6	232.2	28.6	7.2	10.0	12.7	1.6
Chiactines
Unpaired actine	167.5	411.3	655.1	135.6	8.0	12.0	14.6	1.7	25
Paired actines	80.9	195.7	265.4	48.3	8.3	11.9	14.5	1.6
Apical actine	53.3	78.3	102.6	17.0	7.2	10.2	13.8	1.9
Oscular tetractines	--	--	--	--	--	--	--	--	--