Marcus & Marcus, 1970
Known only from Micronesia.
14 m depth, Bile Bay, Guam, 29 June 1988, dorsal view of 52 mm specimen. PHOTO: D.Brunckhorst. (Brunckhorst, 1993: Plate 1E).
Notes compiled from Brunckhorst, 1993:
The distinctive features of P. tula include: its numerous, yellow, rounded tubercles which are isolated or coalesced only at their base and do not form ridges (as occur in Phyllidia varicosa and Phyllidia coelestis ); a gradation in tubercle size from the central area to the marginal edge of the mantle; a dark grey ventral surface, except for the black stripe on the foot sole and the yellow tips of the oral tentacles; and oral tentacles which are triangular in shape with pointed ends rather than rounded as occur in P. varicosa and P. coelestis.
• Brunckhorst, D.J. (1993) The systematics and phylogeny of Phyllidiid Nudibranchs (Doridoidea). Records of the Australian Museum, Supplement 16: 1-107.
Rudman, W.B., 1999 (January 12) Phyllidia tula Marcus & Marcus, 1970. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/phyltula