July 28, 1999
From: Atsushi Ono
They may be same species. But I have never seen a middle type. Their only color marks are those shown in the photo.
Siphopteron sp.2 has no color mark, it is only white.
firstname.lastname@example.orgOno, A., 1999 (Jul 28) Another photo of Siphopteron sp. 1.. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1124
Thanks for the extra photo. In this photo there doesn't seem to be any sign of a rhinophoral crest. Perhaps this species will turn out to be a Gastropteron. Also in this photo the white speckling doesn't seem to be as pronounced.
Colour form of Siphopteron sp. 1
From: Atsushi Ono, December 21, 1999
Siphopteron sp. 1? from Okinawa
From: Bob Bolland, July 27, 1999
Siphopteron sp. from Kerama Island
From: Atsushi Ono, July 26, 1999
Information on Siphopteron
From: Erwin Koehler, July 26, 1999