Currenthurricane API call - is there a "SP" basin?

Together with the problem with the timestamps in the same api call (http://apicommunity.wunderground.com/...) , I have also noticed that in the stormNumber string for Tropical Cyclone Evan , the 2 letter basin is "sp". Although in the documentation it says:

" stormNumberstring
ID of the storm, useful for checking other tropical products: 8 characters with 2 letter basin id (at ep wp ni si) "

there is no option for sp. Is this wrong or does this stand for south pacific?

Thank you in advance for your help.