See this link to my vase in the 2008 GMB Calendar. (Click the Glass Gallery image for a slightly larger version.)
I think the main colouring is the same as in the queried bowl. Cyril Manley said this was Stevens & Williams "
Alexandrite ribbed Rockingham" and an example (pretty much the same as my vase) was illustrated in his
Decorative Victorian Glass book. I bought my vase many years ago at an auction in Stourbridge, where it was listed as Stevens & Williams.
The blue bowl in Gulliver's book is formed in a similar way, although the ribbing is much flatter than in my vase. It is interesting that on page 169 of his book, Gulliver shows another bowl with a similar style of decoration using "multi-colouredf splashes over fragments of silver foil". And that one, also with "lizard-type" creatures, is stated to be Thomas Webb, by virtue of the style of the crimped edge matching a known design registration. (Edited to add - Ah! I now see the Christine had alluded to that one, but without the page number!)
It seems to me that the queried bowl has elements of the Thomas Webb lizard-type creatures and the Stevens & Williams "
Alexandrite ribbed Rockingham" glass. Of course, "lizard-type" creatures were very popular in the late 19th century and perhaps several companies used them.
Whatever the truth is, I think this is not a Murano piece so I will change the title and move the thread into the general "Glass" forum for now - even though it could well be English.