alleni, Pteridium Byrne [L. W.] 1906:448, Fig. [Annals and Magazine of Natural History (Series 7) v. 18 (no. 108); ref. 15653] Mouth of English Channel, near La Chapelle Bank, depth about 450 fathoms. Holotype (unique): BMNH 1907.6.20.21. •Valid as Cataetyx alleni (Byrne 1906) -- (Nielsen 1973:550 [ref. 6885], Cohen & Nielsen 1978:47 [ref. 881], Nielsen in Whitehead et al. 1986:1155 [ref. 13677], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Carrassón & Matallanas 2002:417 [ref. 26676], Balushkin & Prokofiev 2005:557 [ref. 28326], Prokofiev 2005:121 [ref. 34466], Lipej & Dulčić 2010:32 [ref. 36649], Bañón et al. 2016:317 [ref. 34397], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1954 [ref. 34583], Carneiro et al. 2019:160 [ref. 37250], Bañón et al. 2020:[1] [ref. 37645], Kovačić et al. 2020:20 [ref. 37519], Bañón & Maño 2021:62 [ref. 38883], Kovačić et al. 2021:32 [ref. 39014]). Current status: Valid as Cataetyx alleni (Byrne 1906). Bythitidae. Distribution: Western Mediterranean Sea; eastern Atlantic: Porcupine Bank (southwest of Ireland) and English Channel south to northern Morocco. Habitat: marine.