
Sidespotted Dragonet
Callionymus pleurostictus
- Usual depth1–16 m
- Water temperature24–30 °C
- Best monthsNovember
- How commonRare
Photo credit: (c) Rickard Zerpe, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Callionymus pleurostictus, the blue-spotted ruddertail dragonet, is a species of dragonet native to the Pacific Ocean where it is found from the Ryukyus south to Australia. This species occurs at depths of from 1 to 20 metres. This species grows to a length of 2.3 centimetres (0.91 in) SL.
Text from the Wikipedia article “Callionymus pleurostictus”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 4 records
- February: 4 records
- March: 5 records
- April: 7 records
- May: 3 records
- June: 0 records
- July: 0 records
- August: 1 records
- September: 2 records
- October: 6 records
- November: 15 records
- December: 2 records
Depth and water temperature
Depth
Mostly recorded at 1–16 m · Deepest record: 23.6 m
Water temperature
Recorded in surface water of 24–30 °C
Names and classification
- English
- Sidespotted Dragonet
Names in 2 more languages
- Japanese
- ゴマイトヒキヌメリ
- Simplified Chinese
- 狗圻, 白臀, 老鼠, 胡麻
Other scientific names: Pseudocalliurichthys pleurostictus
Similar species
- Common Dragonet
Callionymus enneactis
- Blotchfin dragonet
Callionymus filamentosus
- Günther's Deepwater Dragonet
Callionymus guentheri
- Hildegard's Dragonet
Callionymus hildae
- Japanese dragonet
Callionymus japonicus
- Eightspot Dragonet
Callionymus octostigmatus
Sources and credits
Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).
- Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 81 open-data records from 1960 to 2016.
- Species data updated October 26, 2026.
Log what you see on your next dive
The free DiveHive diver app keeps your logbook with every sighting and shows what lives at the site you dive next.