Nicolas Louis de Lacaille died 21 March 1762 and his book of southern stars and
nebulae,
Coelum Australe Stelliferum, was published posthumously in 1763.
It's included "
Stallarum Australium Catalogus" is dated 1750.
When you look at the tables in
Stallarum Australium Catalogus, you will see that
Lacaille still uses the constellation name
Argūs for RA/Decs in some parts of the
sky and perhaps more specifically,
Argūs in carinā,
Argūs in velis and
Argūs in puppi for others.
So though he does not appear to be calling them Carina (the keel), Vela (the sails)
and Puppis (the poop deck) outright, he certainly is starting to head in that direction.
See
http://books.google.com.au/books?id=...page&q&f=false
By the time we get to American-born Gould, he certainly seems to have purged the constellation
name Argo Navis altogether in
Uranometria Argentina (published 1879) and uses Carina, Vela and Puppis.
See
http://www.uranometriaargentina.com/
So perhaps the truth might end up being somewhere between the two accounts.
It would be interesting to find a reference to Carina, Vela and Puppis pre-dating Lacaille.