- 126 specimens collected from at least 2 countries
- 313 specimens identified from at least 13 countries
- 49 specimens used in 26 works
Progress
Collected From
- United Kingdom 122
- Italy 4
Identified From
- United Kingdom 252
- Guernsey 14
- Guyana 13
- Ireland 9
- Nigeria 4
- France 4
- Myanmar 3
- Equatorial Guinea 3
- Indonesia 2
- New Caledonia 1
- New Zealand 1
- Colombia 1
- Chile 1
Dates Collected
- 1935 – 1940 27
- 1945 – 1950 4
- 1950 – 1955 3
- 1955 – 1960 3
- 1960 – 1965 5
- 1965 – 1970 24
- 1970 – 1975 19