New species and new records of hydroids (Cnidaria: Hydrozoa) from Chile Author Galea, Horia R. Author Schories, Dirk Author Försterra, Günter Author Häussermann, Verena text Zootaxa 2014 3852 1 1 50 journal article 36804 10.11646/zootaxa.3852.1.1 2fb83006-f93c-4492-aed0-f5f0707f553e 1175-5326 286956 7DE3BCBA-E5F0-4F0D-B2FD-B5B59E4DAE51

TABLE 2. Comparison of species of Silicularia Meyen, 1834; dimensions are given in µm.

	S. bilabiata (Coughtrey, 1875)	S. rosea Meyen, 1834	S. hemisphaerica (Allman, 1888)
Reference	Present study, as S. bilabiata	Present study, as S. Blanco (1967b), as rosea S. bilabiata	Galea (2010b), as S. Markannerrosea; present study Turneretscher (1890), as H.atlantica
Pedicel
- length	725–4335	≤ 8000 331–8000	≤ 5500 1000–5000
- diameter	170–240	150–270 147–276	100–175 180
Hydrotheca
- length lowered wall	635–970	535–680 736–993	330–450 350
- length raised wall	635–970	720–900 828–1159	540–640 660
- height basal chamber	135–365	280–415 –	215–265 –
- diameter at aperture	500–700	770–925 699–828	480–550 300–630
♀ Gonotheca
- length	1560–1845	≤ 4000 3128–3827	≤ 2500 2700
- max. width	1105–1170	730–855 644–883	575–685 670
- diameter at aperture	–	645–805 552–828	295–425 –
♂ Gonotheca
- length	–	≤ 5000 2024–4340	≤ 2000 1700
- max. width	–	550–695 239–570	250–305 250