| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | Rovigno (Rovigno d'Istria, Rovinj), Croatia | 1146 | 1933 or earlier | default type | coarse sand, shells | Steinböck O (1933): 15 | |||
| B | Ostrvo Ciovo, Adriatic, Croatia | 5062 | 1953 or earlier | type locality | Amphioxus-sand | Adriatic Sea, Split (Croatia), Ciovo | Karling TG (1953): from Artois 2008 (citation) | ||
| C | Split, Adriatic, Croatia | 2064 | 1953 or earlier | Amphioxus-sand | Adriatic Sea, Split (Croatia), Ciovo | Karling TG (1953): from Artois 2008 (citation) |