Otter Group (Tan: at-) [Mink Hollow Rabbitry]

All four “shades” of otter became part of the official Rex standard inFeb. 2009

Color	A	B	C	D	E	En
Tan Patterns

Black Otter	at-	B-	C-	D-	E-	enen
Chocolate Otter	at-	bb	C-	D-	E-	enen
Blue Otter	at-	B-	C-	dd	E-	enen
Lilac Otter	at-	bb	C-	dd	E-	enen

Black Otter	Chocolate Otter


Blue Otter	Lilac Otter

Marten	Currently, none of these are recognized in Rex.
Color	A	B	C	D	E	En
Silver Marten	at-	B-	c^chd-	D-	E-	enen
Chocolate Silver Marten	at-	bb	c^chd-	D-	E-	enen
Blue Silver Marten	at-	B-	c^chd-	dd	E-	enen
Lilac Silver Marten	at-	bb	c^chd-	dd	E-	enen

This is the color you get when you combine the shaded gene (c^chd) with the tan pattern (at-). It's an otter without the red color along the borders. The chinchilla also makes the 'black' parts look slightly less black.

Marten	Otter

Sable Marten	Currently, none of these are recognized in Rex.
Color	A	B	C	D	E	En
Sable Silver Marten	at-	B-	c^chl-	D-	E-	enen
Sable Chocolate Silver Marten	at-	bb	c^chl-	D-	E-	enen
Sable Blue Silver Marten	at-	B-	c^chl-	dd	E-	enen
Sable Lilac Silver Marten	at-	bb	c^chl-	dd	E-	enen

Tan Himalayan	Currently, none of these are recognized in Rex.
Color	A	B	C	D	E	En
Black Tan Himalayan	at-	B-	c^h-	D-	E-	enen	Possibly showable as a Californian (Black Himalayan) Would likely be faulted for poor point color.
Chocolate Tan Himalayan	at-	bb	c^h-	D-	E-	enen
Blue Tan Himalayan	at-	B-	c^h-	dd	E-	enen
Lilac Tan Himalayan	at-	bb	c^h-	dd	E-	enen

Wild River Rabbitry has a lovely illustrated Shaded Mini Rex Guide.

Judith Graf, Color Basics 1991 (self-published booklet)

Glenna M.Huffmon, The Basics of Color Genetics in Rabbits (I have the 1995 third edition)

Otter Group (Tan: at-)

Full Color Concentration (C-)

Chinchilla: The Martens (Cchd- )

Sable or Shaded (cchl-)

Californian or Himalayan (ch-)

Further Resources