Additional shallow-water thecate hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles Author Galea, Horia R. text Zootaxa 2010 2570 1 40 journal article 10.5281/zenodo.197380 623f5942-0074-4d90-b034-a0b102d5a3e6 1175-5326 197380 Synthecium tubithecum ( Allman, 1877 ) (fig. 6A–C) Sertularia tubitheca Allman, 1877 : 24 , pl. 16 figs 5, 6.― Fewkes, 1881 : 128 .― Nutting, 1895 : 88 . Synthecium tubithecum ― Jäderholm, 1903 : 291 , pl. 13 fig. 7.― Nutting, 1904 : 134 , pl. 41 fig. 1.― Leloup, 1935 : 33 .― Fraser, 1944 : 237 , pl. 49 fig. 222.― Vannucci, 1950 : 86 , pl. 1 fig. 4.― Vannucci, 1951 : 83 .― Mayal, 1983 : 5 , figs 1, 2.― Calder, 1991 : 84 , figs 44, 45.― Calder & Kirkendale, 2005 : 484 . Synthecium tubitheca ― Vervoort, 1968 : 30 , fig. 13A, B. Synthecium rectum Nutting, 1904 : 135 , pl. 41 fig. 2.― Fraser, 1944 : 235 , pl. 49 fig. 220. Synthecium nanum Fraser, 1943 : 80 , pl. 18 fig. 10. Synthecium (?) nanum ― Fraser, 1944 : 235 , pl. 48 fig. 219. Material examined . Stn.9 : 21.11.2009 , 21 m—several sterile fragments to 1.5 cm high, some branched, on sponge (MNHN-IK.2009-825). Stn.10 : 19.11.2009 , 17 m—a sterile, branched stem, 1.2 cm high, on concretions (MHNG-INVE-68726). Stn.11 : 30.11.2009 , 15–18 m—dense colony on sponge, with stems to 1.2 cm high, some branched and some bearing male gonothecae (part as MHNG-INVE-68727). Remarks . For a description of this species, see Calder (1991) . Two types of capsules occur in the present material: small microbasic mastigophores (6.3–6.6 × 1.8–2.0 µm) and large (?) macrobasic mastigophores (40.0–42.5 × 10.7–11.5 µm). Caribbean records . See Calder & Kirkendale (2005) . World distribution . Dry Tortugas ( Allman 1877 ; Nutting 1904 ; Leloup 1935 ; Fraser 1944 , as S. nanum ), Bahamas ( Nutting 1895 ), W of Florida (Albatross Stn. 2410, 2413, and 2414) ( Nutting 1904, as S. tubithecum ), off South Carolina [ Nutting 1904 , as S. tubithecum (Albatross Stn. 2311) and S. rectum (Albatross Stn. 2416) ], off La Havana [ Nutting 1904 , as S. tubithecum (Albatross Stn. 2331) and S. rectum ( Bahama Expedition) ], Brazil ( Vannucci 1950 , 1951 ; Mayal 1983 ), Bermuda ( Calder 1991 ).