Balao Class: Segundo (SS-398) Cat (SS-399) Blenny (SS-324) Blower (SS-325) Blueback (SS-326) Charr (SS-328)January 1945: the USS Segundo is shown in a sub nest at Guam in between her second and third war patrols. She appears bottom left of this photo with the hull number 398 painted on her bow.