Exechonella sp.

(Fig. 2E)

Material examined. Abrolhos Bank, Bahia State, Brazil: MNRJ-Bry1375, Parcel dos Abrolhos, 4 m depth, February 2014, col. R. Moura, G. Amado-Filho & A. Bastos.

Description. Small encrusting fragments comprising a few zooids (Fig. 2E). Autozooids rhomboidal, longer than wide, separated by deep fissures; frontal wall convex, perforated by large circular pores surrounded by a smooth flat collar. Orifice almost quadrate, as wide as long; condyles, avicularia, kenozooids and ovicells not observed.

Geographic distribution. Abrolhos Bank, Bahia State (Bastos et al. 2018; present study).

Remarks. Due to the poor preservation and difficulty of obtaining colonies from the inner core, this specimen can be identified only to genus level. According to Cáceres-Chamizo et al. (2017), two species of Exechonella are confirmed to occur in Brazilian waters: E. brasiliensis Canu & Bassler, 1928a, described from the Bahia coast (Canu & Bassler 1928a; Vieira et al. 2008), and E. vieirai Cáceres-Chamizo et al. 2017, described from Alagoas and Bahia states (Vieira et al. 2008; Winston et al. 2014; Almeida et al. 2015a).