Synthecium tubithecum ( Allman, 1877 )

Calder, Dale R., 2013, Some shallow-water hydroids (Cnidaria: Hydrozoa) from the central east coast of Florida, USA, Zootaxa 3648 (1), pp. 1-72 : 34

Synthecium tubithecum ( Allman, 1877)

Fig. 9i

Sertularia tubitheca Allman, 1877: 24 , pl. 16, figs. 5, 6.

Type locality. USA: Florida, Tortugas ( Allman 1877) .

Voucher material. Palm Beach, 0.75 miles (1.2 km) offshore, 29 m, 22.vii.1974, Johnson-Sea-Link, JSL 1173, diver lockout, one colony, 2 cm high, without gonophores, coll. J. Prentice, ROMIZ B1074.

Remarks. Synthecium tubithecum ( Allman, 1877) is widespread in tropical and subtropical regions of the western Atlantic (e.g., Nutting 1904; Fraser 1944; Vervoort 1968; Wenner et al. 1984; Galea 2010; Oliveira et al. submitted). Its occurrence outside the region has been questioned ( Calder 1991a).

Reported distribution. Atlantic coast of Florida. First record.

Western Atlantic. Continental shelf of South Carolina ( Nutting 1904) to Brazil (Oliveira et al. submitted), including Bermuda ( Calder 1991a), the Gulf of Mexico ( Calder & Cairns 2009), and the Caribbean Sea ( Galea 2010).

Elsewhere. Questionably from the Gold Coast ( Ghana), eastern Atlantic ( Buchanan 1957).

Figures

FIGURE 9. a, Sertularella unituba: part of hydrocaulus with two hydrothecae, ROMIZ B1099, scale equals 0.25 mm. b, Sertularella unituba: gonotheca, ROMIZ B1099, scale equals 0.25 mm. c, Tridentata distans: part of hydrocaulus with four hydrothecal pairs, ROMIZ B3968, scale equals 0.20 mm. d, Tridentata loculosa: part of hydrocaulus with two hydrothecal pairs, ROMIZ B1078, scale equals 0.20 mm. e, Tridentata marginata: part of hydrocaulus with two hydrothecal pairs, ROMIZ B3969, scale equals 0.35 mm.; f, Tridentata marginata: gonotheca, ROMIZ B3969, scale equals 0.25 mm. g, Tridentata turbinata: part of hydrocaulus with two hydrothecal pairs, ROMIZ B3970, scale equals 0.25 mm. h, Hincksella brevitheca: part of hydrocladium with hydrothecae, ROMIZ B1079, scale equals 0.25 mm. i, Synthecium tubithecum: part of hydrocladium with two hydrothecal pairs, ROMIZ B1074, scale equals 0.25 mm.