Category:Helix Volvoxis

Media in category "Helix Volvoxis"

The following 2 files are in this category, out of 2 total.

• 
  1863 BostonJournal NaturalHistory v7 illus1.png 1,782 × 2,859; 2.28 MB
  
• 
  Boston Journal of Natural History, v.7.-Plate 4-fig17-Helix Volvoxis.jpg 264 × 280; 13 KB