Published in Boletin de la Real Sociedad Española de Historia Natural, in 1922, in volume 22, pages 196-200

Published in Boletin de la Sociedad Española de Historia Natural, in 1922, in volume 22, pages 294-299

Published in Boletin de la Real Sociedad Española de Historia Natural, in 1922, in volume 22, pages 363-370

Published in Boletin de la Real Sociedad Española de Historia Natural, in 1922, in volume 22, pages 396-402