Eudrilus eugeniae

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Eudrilus eugeniae
Scientific classification
Kingdom: Animalia
Phylum: Annelida
Class: Clitellata
Subclass: Oligochaeta
Order: Haplotaxida
Family: Eudrilidae
Genus: Eudrilus
Species: E. eugeniae
Binomial name
Eudrilus eugeniae
Kinberg, 1867

Eudrilus eugeniae is a species of earthworm native to tropical west Africa and now widespread in warm regions, both wild and under vermicompost, also called the african night crawler


• Fecundity, growth, maturation and biomass production were all significantly greater at 25°C than 15°, 20°or 30°. {25ºC = 77ºF} • The growth of individual earthworms increased the lower the population density, but the greatest overall earthworm biomass production occurs at the highest population density. • The greatest number of cocoons per week and the number of hatchlings per cocoon are obtained at 25°C. Cocoons of E. eugeniae hatched in only 12 days at 25°C, the earthworms at these temperatures reached sexual maturity in as little as 35 days after hatching.

life cycle:

• Throughout its life cycle, E. eugeniae grew much more rapidly than Eisenia fetida, in similar environmental conditions. The West-African nightcrawler grows well at a temperature of 24-30°C (75-86°F). Maximum weight 2.5 grams occurs within 8-10 weeks. • The African nightcrawler has a uniform purple-grey sheen and the posterior segments are evenly tapered to a point. The segments of the Brandling worm (Eisenia fetida) alternate reddish-orange and brown; the posterior segments do not taper, and the final segment is blunt.