Long-beaked common dolphin to 60 small, sharp, interlocking teeth on each side of each jaw. They have more teeth than any other delphinids. The long-beaked common dolphin is a member of common dolphin genus, "Delphinus" within the dolphin family, Delphinidae in the cetaceans order. Until the mid-1990s, the different forms within "Delphinus" were not recognized as separate species, but were all considered members of the species "D. delphis". In 1994, Heyning and Perrin did research on these species and then Kingston and Rosel confirmed there were two separate species. Currently, the two recognized species of "Delphinus" are the short-beaked common dolphin ("D. delphis")
Delphinus bounds of the constellation since 1992. HR Delphini was a nova that brightened to magnitude 3.5 in December 1967. A nova was discovered by amateur astronomer Koichi Itagaki, Nova Delphini 2013. Giants within our galaxy in Delphinus aside from Delta, Gamma and Epsilon include: Its rich Milky Way star field means many modestly deep-sky objects. NGC 6891 is a planetary nebula of magnitude 10.5; another is NGC 6905 or the Blue Flash nebula. NGC 6934 is a globular cluster of magnitude 9.75. At a distance of about 185,000 light-years, the globular cluster NGC 7006 is at the outer reaches of