Gastrosteidae, [629], [627];

distribution, [631]

Gastrosteus, [630], [163], [169], [271], [288];

G. aculeatus, [357], [630];

pectoral arch of, [630];

G. pungitius, [630];

G. spinosus, [354];

G. texanus, [631] n.

Gastrostomus, [604]

Gastrotoceus, [634], [635]