lindajones354's picture

Large Tadpole

Observed: 15th October 2011 By: lindajones354
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Description:

When draining the garden pond we found 2 very large tadpoles, approximately 7 centimetres long, greenish in colour. No visible signs of legs. Tail end quite slim, not bulbous

Identifications
Species interactions

No interactions present.

Comments

lindajones354's picture

Giant tadpole

Local information says that the American Bullfrogs are have not been seen in the vicinity. I read earlier on this site that a number of people have seen abnormally large tadpoles this year and that they have been sited later in the season. Earlier in the year we sited common frogs in our garden. Is it possible that these tadpoles could be from the common frog. Maybe due to the weather, because it has been unusally warm for this time of year.

Refugee's picture

New ponds

There are a lot of gardeners that let there children populate garden ponds with netted tadpoles ETC and whom knows where from or how far they might travel if they want to see a particular landmark while the kids get on with it.

Refugee

LordMuzzy's picture

Could this possibly be the

Could this possibly be the tadpole of a midwife toad (Alytes obstetricans)? The size and patternation (what I can see) seem to match, also the general area seems right?

Masked Marvel's picture

Similar tadpoles

Midwife toads do have similar tadpoles in size and colouration. The easiest way to tell them apart is that the Pelophylax frogs have a pointed tail-tip, whilst the midwife toad has a rounded tail-tip. In the photo it looks pointed, but it's far from clear. If you do a google image search for midwife toad tadpoles, it looks as if a few are misidentified Pelophylax.

As far as I know, and following some further checking I can't find any records of midwife toads in Crawley, whereas march frogs are well known within the area.

Masked Marvel's picture

Bullfrogs rarer

The import of american bullfrogs into europe was made illegal a while ago. So whilst the still do turn up occasionally, it's nowhere near as often as the used to.

BHS Sec's picture

Large Tadpoles

This is almost certainly common frog tadpoles. They occasionally overwinter and when they do, they get big. I once kept tadpoles of this size just to see what they would metamorphose into and they were indeed common frogs. They can overwinter for a host of reasons and it seems to be becoming more common. If the pond from whence they came usually has common frogs in the spring then that's the key. If you have breeding marsh frogs in your pond, you would know about it from the noise!