Noalda sp. 1

Superfamily: PHILINOIDEA
Family: Aglajidae


Pulau Hoga, Tukang Besi Archipelago, SE Sulawesi, Indonesia, 3 November 1999 at a depth of 38 ft crawling over rubble and filamentous algae. Size: 6 mm. Photo: Lindsay Warren.

This looks very like some drawings of an animal identified by Bob Burn as Noalda exigua Iredale, 1936, a species originally described from Australia from an empty shell. See Burn & Thompson (1998) Order Cephalaspidea In The Southern Synthesis: 943-959 - [Fig 16-31].

I suspect the crescent shaped mark on the posterior shield is an opening to the shell cavity. In Noalda exigua this is a much larger opening. Noalda is considered by Burn & Thompson to be an aglajid but I know of no information on its anatomy.

Authorship details
Rudman, W.B., 2002 (July 2) Noalda sp. 1 [In] Sea Slug Forum. Australian Museum, Sydney. Available from

Related messages

  1. Noalda sp. 1 from the Red Sea
    From: Oren Lederman, October 19, 2005
  2. Noalda sp? from SE Sulawesi, Indonesia
    From: Lindsey Warren, July 5, 2002

Show factsheet and all related messages