Bougainvillia frondosa Mayer

Nagata, Renato Mitsuo, Júnior, Miodeli Nogueira & Haddad, Maria Angélica, 2014, Faunistic survey of Hydromedusae (Cnidaria, Medusozoa) from the coast of Paraná State, Southern Brazil, Zootaxa 3768 (3), pp. 291-326 : 293-295

Bougainvillia frondosa Mayer

( Figs 2–3 )

References consulted. Kramp 1961: 77. Vannucci 1957: 52–53. Vannucci & Rees 1961: 65. Goy 1979: 271. Bouillon 1999: 409, fig. 3.2; Nogueira et al. 2013: table 1.

Material. Municipality of Pontal do Paraná, Balneário de Praia de Leste (25º44’15”S – 48º21’60”W): 16/07/ 1998 — 1 specimen; (25º46’32”S – 48º12’15”W): 20/08/1998 — 1 specimen; (25º44’15”S – 48º21’60”W) 25/11/ 1998 — 1 specimen; (25º50’25”S – 47º55’80”W): 24/02/1999 — 3 specimens.

Reference specimens deposited. Dzoo-Cn 255, 1 specimen.

World distribution. Western Atlantic: Florida ( USA) ( Mayer 1910), Yucatan Peninsula ( Segura-Puertas 1992), Belize ( Larson 1982), and Brazil (see below).

Distribution in Brazil. Northeast ( Goy 1979), Southeast ( Vannucci & Rees 1961; Moreira 1973), and South coast (Navas-Pereira 1981; Vannucci 1957).

Description. Umbrella higher than wide, 0.75–1.5 mm in diameter, in the specimens analyzed. Thick mesoglea, about ¼ of the total height. Cylindrical and short manubrium, cross-shaped in cross-section, pinkish to orange-colored. Basal trunk of oral tentacles long, divided two or three times. Tentacular bulbs small, hemispherical, each with two thick tentacles without ocelli.

Symbol Net type Net size Period Location Number Frequency Duration of N° of Depth Distance Mesh Sampling source figure of of the each trawl sampled (m) from coast Size

samples campaigns (min) stations (Km)

Hensen 30 cm (mouth October/1997 to (25º42'–50’S; 69 Monthly - 5 10–40 7 – 69 250 Sartori & Lopes 2000

diameter) March/1999 47º55'– 48º27’W) µm (vertical tows)

Demersal 8 m width July/2004 to (25º55'– 26º03’S; 91 Monthly 10 3 5–7 1–5 2.5 Nogueira et al. 2006

September/2005 48º24'–35’W) cm

Demersal 12.2 m width September/2004 (25°20’–50’S 200 Seasonally 15 20 6 –15 1–12 2.5 Robert et al. 2007

to July/ 2005 cm 48°10’–35’W)

Demersal 7 m width September/2006 (25°40’–55’S; 24 Punctual 10 6 10 1–3 2 cm Nagata 2006

48°20’–35’W)

Systematic remarks. Bougainvillia is a well-defined genus and the medusae are easily recognized; however, species are difficult to identify. 32 species in the genus are valid, with 28 medusae species ( Schuchert 2013; Nogueira et al. 2013); 8 were cited in Brazil, 7 in the medusa stage (Migotto et al. 2002). B. frondosa is completely distinct from other species of the genus because of the absence of ocelli and only two long, thick marginal tentacles per bulb ( Bouillon 1999, see Table 1 in Nogueira et al. 2013).

Biological data. Unknown hydroid ( Vannucci & Rees, 1961). No information is available on the biology of the species. In Brazil it is considered rare ( Vannucci 1957; Navas-Pereira 1981).

Figures

FIGURE 2 – 5. Bougainvillia frondosa Mayer: lateral view of Dzoo-Cn 255 (2), lateral view of other specimen (3); Bougainvillia pagesi Nogueira, Rodriguez, Mianzan, Haddad & Genzano: lateral view of holotype, MZUSP 1480, modified from Nogueira et al. (2013) (4); Niobia dendrotentaculata Mayer: Oral view, Dzoo-Cn 244 (5).