C55 67-9 are only a light grey - some smaller ones (~17-18 mm) have only black on fins, where previously they would have been very dark by that size. Finishing breeding season? This decrease in color intensity results in some difficulty in differentiating sexes and could explain why in C55 67-8 I noted a seeming increase in proportion of females to males. At that time, increasing darkness by no stroke caused me to hurry as much as possible in taking pictures so I did not examine the fish at all at that time. Charlie and I found two fish which showed evidence of planaria being either scavengers or predators on C. diabolis. The first is a fish - mm in length which had been hopelessly caught in the algae and had 5-7 planaria around (crawling on) it. With these was another, smaller invertebrate - identified as a . The C. diabolis was still living. Another, larger fish was found several minute later. It was dead and also had several (5-7 again) planaria crawling+ attached to it. Both of these fish were preserved - see later observation on specimens. (The entrapment in algae of one and death of another were discovered after activity on the shelf - which may have led to or caused either.) Handling of these two fish resulted in a sticky deposit on our hands. Note the white substance noted on the live beetle encircled by planaria observed in C55 67-6. ✓ Fish in alcohol are either in the slide or were measured by hand