The first word of the name is best seen on the
1888 photograph. The first "r" and the final "ra" are extremely faint, but not in doubt.
If "Ins." ever preceded the name, there is no sign of it. Whether the words "Crocira Port(vs)" are meant to be read as one name, or two, is unclear. If they are quite distinct, then it is curious that "Crocira" is not written horizontally in the regular style, especially when ample space is available. Just conceivably the mapmaker intended the two-word name to signify a settlement on the gulf, and saw no merit in repetitiously naming the island itself. If the single word "Port(vs)" is to be read as a name in its own right here, it would seem to be a unique instance on the map.