_Alticus atlanticus_, Rock-skipper 509 _Alticus saliens_, Lizard-skipper 509 _Emblemaria atlantica_ 510 _Scartichthys enosimæ_, Fish of the rock-pools of the sacred 510 island of Enoshima, Japan _Zacalles bryope_ 511 _Bryostemma tarsodes_ 511 _Exerpes asper_ 511 _Pholis gunnellus_, Gunnel 512 _Xiphistes chirus_ 512 _Ozorthe dictyogramma_ 513 _Stichæus punctatus_ 513 _Bryostemma otohime_ 514 _Ptilichthys goodei_, Quillfish 514 _Blochius longirostris_ 514 _Xiphasia setifera_ 515 _Cryptacanthodes maculatus_, Wrymouth 516 _Anarhichas lupus_, Wolf-fish 517 Skull of _Anarrhichthys ocellatus_ 517 _Zoarces anguillaris_, Eel-pout 518 _Lycodes reticulatus_, Eel-pout 519 _Lycenchelys verrilli_ 519 _Scytalina cerdale_ 519 _Rissola marginata_, Cusk-eel 520 _Lycodapus dermatinus_ 520 _Ammodytes americanus_, Sand-lance 521 _Embolichthys mitsukurii_ 521 _Fierasfer dubius_, Pearlfish, Embedded in Pearl 522 _Fierasfer acus_, Pearlfish 523 _Brotula barbata_ 524 _Lucifuga subterranea_, Blind Brotula 524 _Opsanus pardus_, Leopard Toadfish 525 _Porichthys porosissimus_, Singing Fish (with Many Lateral Lines) 526 _Aspasma ciconiæ_ 530 _Caularchus mæandricus_, Clingfish 531 _Mastacembelus ellipsifer_ 532 _Gadus callarias_, Codfish 533 Skull of Haddock, _Melanogrammus æglifinus_ 536 _Melanogrammus æglifinus_, Haddock 536 _Theragra chalcogramma_, Pollock 537 _Microgadus tomcod_, Tomcod 538