Discodorid sp. 02

Species Profile
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Discodorid sp. 02
Author: Undescribed
Order: Nudibranchia Family: Discodorididae
Maximum Size: 16 mm
Sightings: Sunshine Coast
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Discodorid sp. 02 Undescribed
This species of Discodorididae is oval in shape and low in profile, 16 mm in length. The mantle is broad, overhanging the body and foot completely, all round, by the width of the foot.
The mantle is yellow in colour with a tight reticulated pattern, the infills being translucent yellow. The reticulation is particularly noticeable in the ventral view. There are numerous very small red spots scattered over the dorsum but mostly in the mid-dorsal region between the rhinophores and gills. There are several small red patches on the dorsum, arranged in no particular pattern. These are created by a denser concentration of those red spots with several of those having an intense red spot in their centre. The gill pocket is also surrounded by this denser concentration. Random small white spots are also present on the mantle however these are mainly located outside of the aforementioned red-spotted region. The mantle margin carries no distinctive bands or spots of contrasting colour except for an occasional, random spot similar to those mid-dorsum.
The ventral surface of the foot is yellow without any other adornment. The oral tentacles are long, finger-like, well separated and yellow in colour.
The rhinophores have translucent yellow stalks with the clubs bearing red lamellae slightly speckled in white and with white apices. The rims of the rhinophore pockets carry a number of small white swellings. The gills are located three-quarters back along the mantle, being of sparse appearance and stick-like when expanded. These “sticks” are translucent yellow with a line of white pigment along their axis. The gill pocket presents as a transverse slit, the edges of which are raised with a lumpy appearance, red in colour with some white pigment.
Located on the underside of an old coral plate in 17 m of water.
The name Discodorid has been chosen as a temporary measure due to the external features being inconclusive in determining the genus for taxonomic placement.
David A. Mullins – September, 2021
References:
– Gosliner, T. M., Valdés, Á. & Behrens, D. W. (2018). Nudibranch and Sea Slug Identification: Indo-Pacific – 2nd Ed. New World Publications, Jacksonville, Florida.
Other Sea Slugs in this Family (sighted)
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Atagema albata
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Atagema ornata
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Atagema osseosa
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Atagema sp. 01
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Atagema sp. 02
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Atagema sp. 03
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Atagema sp. 04
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Atagema sp. 05
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Atagema sp. 06
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Atagema spongiosa
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Carminodoris estrelyado
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Carminodoris flammea
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Carminodoris nodulosa
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Carminodoris pustulata
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Carminodoris sp. 01
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Carminodoris sp. 02
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Carminodoris sp. 03
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Carminodoris sp. 04
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Discodorid sp. 01
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Discodorid sp. 02
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Discodoris boholiensis
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Discodoris cebuensis
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Discodoris coerulescens
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Discodoris lilacina
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Discodoris sp. 01
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Discodoris sp. 03
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Discodoris sp. 04
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Discodoris sp. 05
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Discodoris sp. 06
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Discodoris sp. 07
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Geitodoris sp. 02
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Halgerda albocristata
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Halgerda aurantiomaculata
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Halgerda brunneomaculata
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Halgerda elegans
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Halgerda sp. 01
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Halgerda sp. 02
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Halgerda sp. 03
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Halgerda tesselata
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Halgerda willeyi
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Jorunna cf. ramicola
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Jorunna funebris
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Jorunna pantherina
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Jorunna parva
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Jorunna ramicola
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Jorunna sp. 02
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Jorunna sp. 03
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Jorunna sp. 04
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Jorunna sp. 05
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Jorunna sp. 06
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Jorunna sp. 07
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Paradoris dubia
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Peltodoris sp. 01
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Platydoris cruenta
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Platydoris ellioti
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Platydoris formosa
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Platydoris inframaculata
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Platydoris inornata
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Platydoris sabulosa
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Platydoris sanguinea
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Rostanga arbutus
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Rostanga bifurcata
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Rostanga crawfordi
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Rostanga sp. 01
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Rostanga sp. 03
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Rostanga sp. 04
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Sclerodoris apiculata
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Sclerodoris cf. tuberculata
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Sclerodoris coriacea
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Sclerodoris sp. 01
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Sclerodoris sp. 02
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Sclerodoris sp. 03
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Sclerodoris sp. 04
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Sclerodoris sp. 05
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Sclerodoris sp. 06
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Sclerodoris sp. 07
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Sclerodoris sp. 08
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Sclerodoris sp. 09
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Sclerodoris tuberculata
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Sebadoris cf. nubilosa
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Sebadoris fragilis
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Thordisa albomacula
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Thordisa sp. 01
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Thordisa tahala
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Thordisa villosa