Trapania squama
Gosliner & Fahey, 2008
Order: NUDIBRANCHIA
Suborder: DORIDINA
Superfamily: ANADORIDOIDEA
Family: Goniodorididae
DISTRIBUTION
Known from Papua New Guinea and the Marshall Islands
PHOTO
Upper right: CASIZ 070423, Papua New Guinea, 11 mm. Photo: T. Gosliner. Lower left: CASIZ 121091. Radular morphology. Close-up of teeth, scale=10 µm. [From Gosliner & Fahey 2008: Fig 2D]. Lower right: Marshall Ids. 5-9 mm long alive. Photo: Scott Johnson.
The body is a pale creamy orange with an open reticulate pattern of thin dark brown lines. In some places there can be small clusters of dark brown rings. The black lines of the open network are outlined with white. In a few places, such as the front of the head and the oral tentacles, the creamy orange background colour is absent and instead there is a translucent brown background colour and opaque, sometimes raised spots. Other places with a similar spotted pattern include a region behind the rhinophores, and the posterior end of the body.
The extra-rhinophoral and extra-branchial appendages, the rhinophores and gill leaves are translucent brown with dull white mottling. It grows to about 11 mm in length.
This species has previously been known the Forum as Trapania sp. 3.
-
Gosliner, T.M. & Fahey, S.H. (2008) Systematics of Trapania (Mollusca: Nudibranchia: Goniodorididae) with descriptions of 16 new species Systematics and Biodiversity, 6 (1): 53-98.
Rudman, W.B., 2008 (March 10) Trapania squama Gosliner & Fahey, 2008. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/trapsqua
Related messages
16 new species of Trapania
March 12, 2008
From: Bill Rudman
For those of you who may have wondered why there have been no postings this week it is because I received a new publication on Friday from Terry Gosliner & Shireen Fahey describing 16 new species of the goniodorid genus Trapania. So I have spent the last few days preparing Fact Sheets and background information, and re-organising the many un-named Trapania on the Forum which now have names. I have slight reservations about one or two of these species which I will discuss in separate messages. I have also thought it a good time to add some SEM photos of the radula of some other species of Trapania for comparison.
Trapania squama [Previously Trapania sp. 3 on Forum]
Trapania caerulea
Trapania nebula
Trapania palmula [Previously Trapania sp. 5 ]
Trapania scurra [Previously Trapania sp. 6 ]
Trapania gibbera
Trapania cirrita
Trapania melaina [Previously Trapania sp. 10 ]
Trapania euryeia [Previously Trapania cf brunnea [in part]]
Trapania vitta
Trapania tora
Trapania armilla
Trapania darwini
Trapania naeva [Previously Trapania sp. 1 ]
Trapania miltabrancha [Previously Trapania sp. 11 ]
Trapania circinata
This large paper does not solve all the unnamed species and identfiication problems on the Forum, but it certainly solves a lot of them. My thanks to Terry & Shireen for permission to reproduce some illustrations.
- Gosliner, T.M. & Fahey, S.H. (2008) Systematics of Trapania (Mollusca: Nudibranchia: Goniodorididae) with descriptions of 16 new species Systematics and Biodiversity, 6 (1): 53–98
Best wishes
Bill Rudman
Another Trapania from Marshall Ids
June 23, 2000
From: Scott Johnson
Nore added 12 March 2008: This species has been named Trapania squama.
Hi Bill,
Here is another Trapania species from the Marshall Islands. It is much smaller than Trapania cf. brunnea which I sent separately, 5 to 9 mm in length, and living under rocks at depths of about 10-15 meters.
Scott
johnson@kmr.ll.mit.edu
Johnson, S., 2000 (Jun 23) Another Trapania from Marshall Ids. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2614Dear Scott,
This has some similarities to Trapania toddi, but the network of brown lines is quite unique.
Best wishes,
Bill Rudman.
