Mercator?

What is this user agent?

[przero2]

While looking for googlebot in the logs, I came across another agent Mercator that has got over 1000 pages and it is still hungry?.
Any one else see this user agent and know who sends this bot.

[msgraph]

Mercator is back? Does the IP resolve to AltaVista?

[webmasterworld.com...]

[agerhart]

Mercator is AltaVista's spider.

[heini]

http://www.searchengineworld.com/spiders/ip_addresses/altavista.htm [searchengineworld.com] ;)

[oilman]

Mercator is AltaVista.

[heini]

Hehe - look at the time stamps...
Fastest gunner was msgraph.