Published in Mittheilungen aus der Zoologischen Station zu Neapel, in 1899, in volume 13, pages 1-292

Published in Mittheilungen aus der Zoologischen Station zu Neapel, in 1899, in volume 13, pages 293-324

Published in Mittheilungen aus der Zoologischen Station zu Neapel, in 1899, in volume 13, pages 325-340

Published in Mittheilungen aus der Zoologischen Station zu Neapel, in 1899, in volume 13, pages 341-425

Published in Mittheilungen aus der Zoologischen Station zu Neapel, in 1899, in volume 13, pages 426-432

Published in Mittheilungen aus der Zoologischen Station zu Neapel, in 1899, in volume 13, pages 433-439

Published in Mittheilungen aus der Zoologischen Station zu Neapel, in 1899, in volume 13, pages 440-447

Published in Mittheilungen aus der Zoologischen Station zu Neapel, in 1899, in volume 13, pages 448-573