Could you identify the worms in the attached picture? I found several clusters of these under stones in my garden recently. I also found a couple of New Zealand flatworms under pots in my garden. – Anne Johnston, Co Mayo
They look very much like the early stage of New Zealand flatworms.
Lots of these urchins were washed on to a section of the beach at Salthill, Galway. I was wondering why and if they were dead. – Ann Mulvihill, Cloonboo, Co Galway
![Potato urchins](https://www.irishtimes.com/resizer/v2/DZVTAPUR7WOMG6IWGD22THSHZM.jpg?auth=3f702de6a4b4e040a63760474efc75f91c7f7dd56fb7d3853a1a8a61e29b5020&width=800&height=449)
These potato urchins are dead, probably because of a storm. When they are alive they are covered with dense short spines.
In one of the last remaining open stretches of the river Poddle, I saw a bird that can only be described as a black heron. I'm very familiar with grey herons and there is a local one known as "Bertie Aheron". – Denis Goodbody, Harold's Cross, Dublin 6W
There is anecdotal evidence from Britain of sightings of black herons thought to be melanistic.
I found this spider in our kitchen. What type is it? – Sean Malone, Blackrock, Co Dublin
![Giant house spider, Eratigena gigantea.](https://www.irishtimes.com/resizer/v2/RLSMGFX5TQI7ZBE2AUZLFCPMXA.jpg?auth=6275f5a6d15b8df3bf9a5f389d43172d27ac26637c1ded7a79850d4b00263085&width=800&height=449)
It’s one of the giant house spiders, probably Eratigena gigantea.
Alan Flett, Delgany, Co Wicklow, and John O'Connor, Rathgar, Dublin 6, watched a young otter emerge from a pond in the National Botanic Gardens, Kilmacurragh, Co Wicklow, and act in a playful manner around their feet. At one stage it rolled over on its back as if it wanted to have its belly tickled. When it saw a dog it slid back into the pond and disappeared.
This speckled wood butterfly was out in mid-March – a bit early, I would have thought. – Frank Folan, Ballyvaughan Co Clare.
![Speckled wood butterfly](https://www.irishtimes.com/resizer/v2/VE4SNEUZFCYBDNGJZA2237MX4I.jpg?auth=5232bb14f9ba0b8d0580288503324273d74f26e399ad0f8383cb30e13aae5fae&width=800&height=449)
In fact just on time.
Ethna Viney welcomes observations and photographs at Thallabawn, Louisburgh, Co Mayo, F28 F978, or by email at viney@anu.ie. Include a postal address, please.