Cominella glandiformis
- Usual depth0–1 m
- Water temperature12–18 °C
- Best monthsJanuary, September, and October
- How commonOccasional
Photo credit: (c) Saryu Mae 前 朝琉, some rights reserved (CC BY), uploaded by Saryu Mae 前 朝琉 · CC BY · iNaturalist
About this species
Cominella glandiformis, the mud whelk or mud-flat whelk, is a species of predatory sea snail, a marine gastropod mollusc in the family Cominellidae. It is endemic to New Zealand.
Text from the Wikipedia article “Cominella glandiformis”, 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: 105 records
- February: 67 records
- March: 92 records
- April: 79 records
- May: 77 records
- June: 44 records
- July: 61 records
- August: 54 records
- September: 111 records
- October: 108 records
- November: 79 records
- December: 94 records
Depth and water temperature
Depth
Mostly recorded at 0–1 m · Deepest record: 2.7 m
Water temperature
Recorded in surface water of 12–18 °C
Photos
(c) Jacqui Geux, some rights reserved (CC BY), uploaded by Jacqui Geux · CC BY · iNaturalist 
(c) Lisa Bennett, some rights reserved (CC BY), uploaded by Lisa Bennett · CC BY · iNaturalist 
(c) Jacqui Geux, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Saryu Mae 前 朝琉, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Saryu Mae 前 朝琉, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Stephen Thorpe, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
Other scientific names: Buccinum funereum, Buccinum glandiforme, Buccinum luridum, Buccinum zelandicum, Cominella (Cominista) glandiformis, Cominella (Josepha) glandiformis, Cominella glandiforme
Similar species
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).
- 585 open-data records from 1923 to 2021.
- Species data updated November 1, 2026.
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