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