Ascidicolidae Thorell, 1860
Haplostomella australiensis Gotto, 1970
Haplostomella borealis Marchenkov & Boxshall, 2004
Haplostomella distincta Ooishi & Illg, 1977
Haplostomella dubia Ooishi & Illg, 1977
Haplostomella halocynthiae (Fukui, 1965)
Haplostomella magellanica (Chatton & Brément, 1910)
Haplostomella malacocera Chatton & Harant, 1924
Haplostomella oceanica Ooishi & Illg, 1977
Haplostomella reducta Ooishi & Illg, 1977
Haplostomella sanamyani Marchenkov & Boxshall, 2004
Haplostomella sycozoae (Salfi, 1926)
Haplostomella tuberculata Chatton & Harant, 1924
