Doing a quick google on "walkeriana X Brassanthe Maikai" I came across something that states:
"There is a long-standing point of confusion on this one.the true name is: Brassocatanthe Little Marmaid (Cattleya walkeriana x Brassanthe Maikai)"
There's a pic of one in flower here:
C. Aurantica X Bc. Maikai, Little Mermaid Janet
The following info is from page 4 of this newsletter - there's a pic there as well:
"Brassocatanthe Little Marmaid ‘Janet' is a mini
cross between Cattleya walkeriana x
Brassanthe Maikai, which was registered in
1997 and is made up of three species. It has
fragrant flowers that are usually four in
number per inflorescence. Its sepals and
petals are light lavender-pink, with a lavender
lip that has spotted, dark purple coloration in
a waterfall pattern on the outer halves and
creamy yellow side lobes. Its column is white
and the flowers have a firm substance and
sparkling texture. Pam grows her orchid in an
atrium with 60-75% humidity, high day
temperatures and low nights of around 55
degrees. It MUST dry out between waterings."
Hope this helps.