Stephen

Stephen or Steven /ˈstiːvən/ is a masculine first name, derived from the Greek name Στέφανος (Stéfanos), in turn from the Greek word "στέφανος", meaning "wreath, crown, honour, reward", literally "that which surrounds or encompasses". In ancient Greece, a wreath was given to the winner of a contest (from which the crown, symbol of rulers derived). The use of the noun was first recorded in Homer's Iliad. The name is significant to Christians: according to the Book of Acts in the New Testament, Saint Stephen was a deacon who was stoned to death and is regarded as the first Christian martyr. The name has many variants, which include Stephan, Stevan, Stefan and Stevon.

In Middle English, the name Stephen or Stephan was pronounced as a bi-syllabic word — Step-hen or Step-han — much like a Scandinavian surname. Steve was pronounced as it is in Modern English. This etymological usage began a decline in the mid-19th century.

Steve is the common short form, while various diminutives such as Stevie and Ste are also used. Many family names are derived from Stephen: the most common are Stephens/Stevens and Stephenson/Stevenson (others include Stephen, Stephan, Staphan, Stefan, Stevin and Stever).

Hagfish

Hagfish, the class Myxini (also known as Hyperotreti), are eel-shaped, slime-producing marine fish (occasionally called slime eels). They are the only known living animals that have a skull but no vertebral column. Along with lampreys, hagfish are jawless; they are the sister group to vertebrates, and living hagfish remain similar to hagfish from around 300 million years ago.

The classification of hagfish has been controversial. The issue is whether the hagfish is itself a degenerate type of vertebrate-fish (most closely related to lampreys), or else may represent a stage which precedes the evolution of the vertebral column (as do lancelets). The original scheme groups hagfish and lampreys together as cyclostomes (or historically, Agnatha), as the oldest surviving class of vertebrates alongside gnathostomes (the now-ubiquitous jawed vertebrates). An alternative scheme proposed that jawed vertebrates are more closely related to lampreys than to hagfish (i.e., that vertebrates include lampreys but exclude hagfish), and introduces the category craniata to group vertebrates near hagfish. Recent DNA evidence has supported the original scheme.