| Size (cm): |   |
| Locality: | UK Great Britain & N. Ireland |
| Sex: | larvae |
| Date: | |
| Reference: | Pinder, A.C. |
| Remark: | Stage 1 - free embryos. Huge yolk sac, with no less than 29 pre-anal myomeres, body pigment first evident from a length of 9.0 mm, dorsal fin-fold beginning to differentiate before the end of this stage. Permission to use, given by Dr R. Sweeting of FBA. |