Viviparous brotula
…Thermichthys hollisi, which lives at depths of around 2,500 m (8,200 ft), is associated with thermal vents. A few are fresh or brackish water cavefish: the Mexican blind brotula (Typhliasina pearsei), Galapagos cuskeel (Ogilbia galapagosensis), Diancistrus typhlops and some Lucifuga species. Since 2002, more than 110 new species…