Gow (餃, Dumpling) (or Gow gee, Jiaozi; 餃子 gau zi, 饺子 jiǎozi)
Chiu-chao style dumplings (潮州粉果 chiu-chau fun guo)
Potsticker (鍋貼 iterally "pot stick")
Siu Maai (燒賣 siu maai)
Bau (包 bau)
Sweet cream buns (奶皇包)
Shanghai steamed buns or Xiaolongbao (上海小籠包 seong hoi siu lung bau)
Rice noodle rolls or cheong fun (腸粉 cheong fan)
Turnip/Daikon radish cakes or lo bak go (蘿蔔糕 lo bak go)
Phoenix talons (鳳爪 fung zau)
Steamed meatballs (牛肉球 ngau4 juk6 kau4)
Steamed spare ribs (排骨 paai4 gwat1)
Lotus leaf rice (糯米雞 no mai gai)
Congee (粥 zhōu)
dou fu fa (豆腐花)
Chien chang go (千層糕 cin cang gou)
Taro root dumpling or woo kok (芋角 wu gok)
Spring rolls (春卷 cheon gyun)
Crispy fried squid (魷魚鬚 yau yu sou)
Egg tart (蛋撻 dan tat)
for more details, please visit the below website, it's useful~
http://en.wikipedia.org/wiki/Dim_sum
http://sevencastles.spaces.live.com/Blog/cns!1psdFdW3uWZp-A3c-JeidiRg!4147.entry