Banded Spear Sea Butterfly

Hyalocylis striata

Molluscs
IUCN: Not evaluated

Usual depth0–1,945 m
Water temperature12–29 °C
Best monthsAugust, September, and October
How commonOccasional

All species

About this species

Hyalocylis striata is a species of Hyalocylis, a pteropod. It is a gastropod mollusk.

Text from the Wikipedia article “Hyalocylis striata”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 21 records
February: 18 records
March: 6 records
April: 12 records
May: 9 records
June: 13 records
July: 12 records
August: 23 records
September: 23 records
October: 32 records
November: 18 records
December: 21 records

Depth and water temperature

Depth

Mostly recorded at 0–1,945 m · Deepest record: 4,766 m

0–10 m: 58 records
10–20 m: 4 records
20–30 m: 7 records
30–40 m: 16 records
40–50 m: 2 records
50–60 m: 4 records
60–70 m: 2 records
70–80 m: 4 records
80–90 m: 2 records
90–100 m: 2 records
100–110 m: 5 records
110+ m: 64 records

Water temperature

Recorded in surface water of 12–29 °C

10–12 °C: 1 records
12–14 °C: 2 records
14–16 °C: 9 records
16–18 °C: 3 records
18–20 °C: 29 records
20–22 °C: 76 records
22–24 °C: 75 records
24–26 °C: 14 records
26–28 °C: 42 records
28–30 °C: 26 records

Names and classification

English: Banded Spear Sea Butterfly, Striate Clio

Names in 3 more languages

Japanese: ガラスウキヅノガイ
Korean: 떠돌이주름뿔고둥
Simplified Chinese: 牛角蝶螺

Other scientific names: Cleodora (Creseis) striata, Cleodora striata, Creseis annulata, Creseis compressa, Creseis rugulosa, Creseis sulcata, Creseis zonata, Hyalocylis cretacea, Hyalocylis euphratensis, Hyalocylis haitensis, Hyalocylis obtusa, Hyalocylix haitensis, Praehyalocylis cretacea, Tentaculites cretaceus

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).
635 open-data records from 1828 to 2026.
Species data updated November 3, 2026.

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