The character subsequently appears in Captain America #342-344 (June-August 1988), Uncanny X-Men Annual #13 (1989), Captain America #367 (February 1990), #372 (July 1990), and #412-413 (February-March 1993).
Boomslang appeared as part of the "Serpent Society" entry in the Official Handbook of the Marvel Universe Update '89 #6.