Clyde Albert Parker, 67, who sold fresh fish and seafood at the floating fish market along Maine Avenue in Southwest Washington for almost 30 years, died Saturday in the Public Health Service hospital in Norfolk of complications arising from arthritis.

"Captain Cylde," as he was known to customers and friends, came to the Washington waterfront following Army service in World War II. In 1949, he bought the boat "Constance Sue" and operated it for many years with his late father-in-law, Capt. Arzie J. Hundley.

The Parker & Hundley firm which the two formed was a family enterprise. Mr. Parker retained his residence in Onancock on the Eastern Shore of Virginia. He and other members of the family would take turns commuting from Onancock to Washington to sell fish. They would live on the boat while they were here.

They did not catch the fish they sold. The "Constance Sue" was a floating retail outlet.

Mr. Parker was born in Onancock. He farmed on the Eastern Shore before World War II. He retired from the fish and seafood business and returned there permanently in the mid-1970s.

Mr. Parker was a member of the Broadway Baptist Church near Onancock. He was a member of the Chesapeake Masonic Lodge.

Survivors include his wife, Lois, of the home; a son, Albert W. Parker, of Alexandria; two sisters, Naomi Moore, of Rehoboth Beach, Del., and Catherine Nottingham, of Onancock, and two brothers, James Drummond Parker and Benjamin M. Parker, also of Onancock.