Many Asian cukes are long and some are vary shades of white. Not many OP's come to the US tho. Kitazawa which vend Japanese seed here carry mostly hybrids. There are two Korean Cucumbers available in the USA (Evergreen seed) that look like your photo. White Sun and Silver Green ( both however are hybrids)

Is it this one perhaps?

Here is a link that might be useful: Cucumber Suyo

lumpyspal: Nope not that one. I've grown Suyo Long which look like the ones in your link. The cucumber pictured in kinjapan's post looks nothing like the Suyo.
I love how that cucumber is almost white. How do the cucumbers taste?

Jon

hatchjon

I have a friend who is 2nd generation Japanese-American and she grows all types of Asian vegetables. I sent her the photo that you provided and asked her if she could help.

I'll post once I hear from her.

LumpysPal

hatchjon

My friend looked at the photo that you provided and said that she's fairly certain that this is the 'kyuri' cucumber variety.

HTH

LumpysPal

Here's a source for Japanese cucumber varieties that might come close to what you're looking for.

Here is a link that might be useful: Kitazawa Seed Co.