Goldfish - The Joyous Whippoorwill (Shortened to TheJoyousWhippoorwil after patch)
The whippoorwill is a bird which shouts its name. In H.P. Lovecraft's "The Shadow Over Innsmouth", it is said when a man dies and their soul is cast away, the whippoorwills try to catch it. If they do, they sing with joy. If they don't, they slink back, sad.
Junker - Flighted Wahrk
Named after my favorite sea creature in the Myst series due to its similarity in shape and shark related name. It makes an appearance in Riven.
My other ship names after these tend to change now and then.
Galleon - Stolen Star
I just liked the imagery and concept.
Pyrmidion - Sharptooth (Sometimes Umbrellamouth)
Sharptooth, cause it has such a pointy front end. Umbrellamouth because the Umbrella Mouthed Gulper Eel my favorite deep sea animal, and the Pyrmidion's shape reminds me of its head.
Squid - Hatchetfish
Just a smallish cool scary deep sea fish
Spire - Skyward Fist
Sounds cool and it kinda looks like one.