Authors(s)	Williamson, H. C.
Year	1913
Title	On the eggs of certain skates (Raia). Scient. Invest. Fishery Bd Scotl., 1912 [

• Raja batis
• Raja brachyura
• Raja circularis
• Raja clavata
• Raja microocellata
• Raja montagui
• Raja naevus
• Raja nidarosiensis
• Raja oxyrinchus
• Raja radiata