Dr. Sérgio Ávila (MSc.)
Secção de Biologia Marinha
Departamento de Biologia
Universidade dos Açores
9500 Ponta Delgada
Portugal
Dear David:
You are wright! I was in doubt wether I should place the boundary between
Carolinian and Virginian Provinces. I was following Engle & Summers (2000)
opinion (according to them, the boundary should be at Wilmington beach,
34ºN), but only today I realized that they did this with estuaries data!
So, I agree with you and I am now using Cape Hatteras (35ºN) as the
boundary between Carolinian and Virginian provinces.
I am doing this work with the Rissoidae, both shallow and deep species.
Sérgio