I pulled the ship manifest record up on Ancestry.com (to look at the handwriting) for that location of Cunachair, Limerick (no help there as it does indeed look exactly like that spelling) but I noticed when I pulled the record up that in the index portion it says:
New South Wales, Australia, Assisted Immigrant Passenger Lists, 1828-1896
Name: Bridget Carroll
Birth Year: abt 1830
Age: 18
Gender: Female
Arrival Date: 19 Feb 1848
Vessel Name: Hyderabad
Origin Location: Ballintagart*, County Armagh, Ireland
*IreAtlas (http://www.seanruad.com/) database spells it Ballintaggart, County Armagh in the Civil Parish of Kilmore. Do you have any idea WHY the 'Origin Location' is listed as Ballintaggart Co Armagh? Kathy