Species of this genus are well represented in Bermuda marine caves. Spirillina vivipara is a common species of lagoons in Bermuda and Florida-Bahamas, and the more robust S. cariacoensis occur in Bermuda reefs.

v. 1884 Spirillina limbata Brady var. denticulata Brady, 1884, p. 632, pl. 85, fig. 17. Bock, 1971, p. 55, pl. 20, fig.2.

This species occurs in Bermuda caves.

v. 1841 Spirillina vivipara Ehrenberg, 1841, p. 422, pl. 3, sec. 3, fig. 41; Bock, 1971, p. 55, pl. 20, fig. 4.

This species occurs mostly in Bermuda marine caves but also in lagoons, and in Florida-Bahamas nearshore waters and lagoons. It may have a widespread distribution but is rarely reported.