Table 1. Comparative micrometric data of spicules for voucher specimens of H. perlevis from South Africa.

Micrometric values in µm.

Species	Specimen	Location	Large style	Medium style	Small style
Hymeniacidon perlevis	TS305	Jacobs Bay	337 × 7 µm		155 × 7 µm
	TS1163	Knysna	381 (336–437) × 5 µm	270 (224–324) × 2.4 µm	168 (146–190) × 2.4 µm
	TS1167	Tsitsikamma	386 (347–420) × 5 µm	274 (246–308) × 2.4 µm	167 (145–207) × 2.4 µm
	TS1189	Robberg	359 (336–370) × 5 µm	285 (235–308) × 4.8 µm	157 (140–196) × 4.8 µm
	TS2736	Greenpoint	375 (336–420) × 11.2 µm	290 (246–314) × 11.2 µm	162 (140–224) × 5.6 µm
	TS2736	Dalebrook	374 (336–420) × 11.2 µm	290 (252–308) × 11.2 µm	163 (140–196) × 5.6 µm
	TS2743	Strand	390 (358–427) × 11.2 µm	294 (280–308) × 11.2 µm	187 (168–190) × 5.6 µm
	TS2765	Mazeppa		307 (280–336) × 11.2 µm	144 (112–168) × 5.6 µm
	TS2935	Groenrivier Mund	416 (364–476) × 11.2 µm	274 (224–336) × 5.6 µm	194 (179–213) × 5.6 µm
	TS2963	Rooiklippies	493 (364–431) × 11.2 µm	288 (246–336) × 11.2 µm	198 (190–213) × 5.6 µm
	TS3359	Dwesa	378 (358–420) × 5.6 µm	321 (302–336) × 5.6 µm	187 (157–213) × 5.6 µm
	TS4860	Haga Haga	375 (336–403) × 5.6 µm	321 (302–336) × 5.6 µm	187 (157–213) × 5.6 µm