Clypeasterophilus stebbingi (Rathbun, 1918)

(Figure 17C)

Dissodactylus stebbingi Rathbun, 1918: 123, pl. 28, figs. 1 and 2.

Material examined. Brazil, São Paulo: 1 ♀, CCDB 5522, Ubatuba, Ilha das Couves, coll. F. Zara, 04.ii.2015 ; 2 ♂, CCDB 5523, Ubatuba, Ilha das Couves, coll. F. Zara, 04.ii.2015 ; 1 ♂, 1 ♀, CCDB 1378, Ubatuba, Ilha Anchieta, colls. F. Mantelatto et al., 01.ii.2000 ; 1 ♂, CCDB 1379, Ubatuba, Ilha Anchieta, colls. F. Mantelatto et al., 01.iii.2000 ; 1 ♂, CCDB 1380, Ubatuba, Ilha Anchieta, colls. F. Mantelatto et al., 01.viii.2000 ; 4 ♂, 3 ♀, CCDB 1381, Ubatuba, Ilha Anchieta, colls. F. Mantelatto et al., 01.x.2000 ; 8 ♂, 2 ♀, CCDB 1382, Ubatuba, Ilha Anchieta, colls. F. Mantelatto et al., 01.xii.2000 .

Distribution. Western Atlantic—USA (Florida) (Felder et al. 2009), Venezuela, and Brazil (São Paulo, Santa Catarina) (Martins & D’Incao 1996; Palacios-Thiel et al. 2009).

Remarks. Previous records on the coast of São Paulo include Ubatuba (Marques & Pohle 1996; Palacios-Theil et al. 2009, 2016). The genus Clypeasterophilus was originally erected to receive some members of Dissodactylus, including D.stebbingi (Campos& Grippith1990) .According to these authors,species that belong to Clypeasterophilus are exclusive symbionts of irregular sand dolar echinoids of the genus Clypeaster spp. Sequences accession number (GenBank): CCDB 1382—16S (MF490173), COI (MF490077) (Mantelatto et al. 2018a).