Caridina cf. babaulti

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Wrote by Tipic, translated by Logow

Caridina cf. babaulti
Bouvier, 1918

Caridina cf. babaulti
Caridina cf. babaulti
Caridina cf. babaulti
Synonyms :

  • Caridina weberi prox. var. sumatrensis Kemp, 1918
  • Caridina ceylanica*
  • Caridina zeylanica Arudpragasam & Costa, 1962 **

See taxonomy

Common names :

  • Grüne Zwerggarnele
  • Crevette verte des Indes
  • Green shrimp
  • Ceylon Garnele

*Caridina ceylanica is an incorrect name used in 2000-2004.
**Caridina zeylanica isn’t a proper name but rather a commercial name used during 2000-2004.

Varieties :

(See the superb photo gallery of Crusta10)

Origin : India, Malaysia

Carte Caridina cf babaulti

Water specifications :

  • pH : 6.8 to 7,5
  • GH : 8 to 20
  • Temperature : 24 to 28°C / 75.2 to 82.4°F

Size :

  • Male : 3 cm
  • Female : 4 cm

Caridina cf. babaulti Description : Characteristic shape of the shrimps belonging to the Caridina genus, medium length very spiky rostrum. Background colouration varies a lot from one specimen to another. The most common specimens have a green/brown colour. However we can notice that on some photos from authors like C. Lukhaup, or W. Klotz that there is a variation going from blue to red while going through varieties like Caridina cf. babaulti “Stripes”. Some specimens present an egg shell white line all along their back, that goes from the rostrum to the telson.Caridina cf. babaulti We can also notice some fine markings along the sides of the cephalotorax and the different segments of the abdomen. Environmental influence, geographical variety or specific sub-types, different theories are advanced. According to my personal observations, I have noticed that the specimens have a very strong chromatic faculty to adapt to their environment and can therefore blend into their habitat. We can call it homochromia or chromatic adaptation. We will try and program a few experiments in different surrounding colours , with the same shipping of Caridina cf. babaulti, to try and give an answer or confirm this theory. We will keep you updated on the results as soon as we have them.

Behaviour : Excellent gregarious specie it must absolutely live in groups of 6 individuals of the same specie no less.

Life span : around 18 months

Feeding habits : Omnivorous with a strong vegetarian tendency favouring algae.

Sexual dismorphism : Females are larger than males, who are often thinner and less coloured than the females.

Reproduction : Reproduction is direct without any larval stage. The whole cycle of incubation, hatching and growth occurs in freshwater conditions.

Caridina cf babaulti verte Specificity : The name “babaulti” was given by Bouvier, to thank Mr. Guy Babault, who collected a lot of new species of birds, fish, reptiles across all his different exploration missions all over the world. He collected some shrimps in the fresh water rivers of British India in 1914. They where handed to Louis Eugène Bouvier (biography), that realised the description of this new specie.

Caridina cf. babaulti The green shrimps where named under the commercial name Caridina ceylanica, and a bit later as Caridina zeylanica. The first name is unknown of in the scientific community. It’s probably a deformation of the scientific name Caridina zeylanica, that came some time later to determine this shrimp. However, according to all the morphologic and ecologic characteristics of the real Caridina zeylanica, we can realise that they are truly two distinct species. The rostrum of Caridina zeylanica is very different and easly identifiable due to it’s long shape that goes past the antenna pods. (this shrimp belongs to the “Nilotica” group, Caridina nilotica) when the Caridina cf. babaulti rostrum is short and does not go past the antenna pods. On top of that the reproduction cycle of Caridina zeylanica is of Caridina cf. babaultiindirect type, and need to go through several larval stages on salt water conditions contrarly to Caridina cf. babaulti who uses a direct type reproduction in fresh water conditions. However a little false note comes and ruins things when Caridina babaulti basrensis Al-Adhub & Kamzah, 1987 (See Zeck’s complimentary study) gives birth to larvae that will need 6 different stages before having a benthic life like the adults.

Caridina cf. babaulti The status of Caridina babaulti, and more generally of the “Babaulti” group is still a controversy, it is therefore important to take care with the naming or visual identification. A study with a microscope is an obligation and doesn’t even provide enough evidence to give 100% sure results, as the different element are so minutes they are difficult to differentiate. We will never be able to say this too many times, so please be very careful with the identifications, maybe DNA sequencing will be able to help us? While waiting for more definitive and precise elements in this domain, authors like Andreas Karge and Werner Klotz prefer to name these Caridina cf. (confer) babaulti to keep a certain reserve on their denomination. If you have any precisions, or if you know the results to the latest works that are being done on the subject don’t hesitate to inform us.

Caridina babaulti basrensis Al-Adhub & Kamzah, 1987

During researches on Caridina babaulti for this index page, we have discovered astudy by Nasseer Idridi and Salman D. Salman concerning Caridina babaulti basrensis (***).

So if Caridina cf. babaulti lives in fresh water condition and reproduce with a direct method without any larval stage, we have discovered that Caridina babaulti basrensis Al-Adhub & Kamzah, 1987 lived in a brackish water zone in the Irakian estuaries and reproduced with and indirect mode composed of several larval stages in this same brackish water. 6 larval stage are necessary for the complete development of this specific specie.

If the study itself was about the variations in temperature and their effects on larval development, the study area is described and the salinity levels are between 1.3 et 2.7 ppm.

Links :

Sources :

  • Sußwassergarnelen aus aller Welt, Andreas Karge & Werner Klotz (page 62 à 67)
  • Wirbellose im Süßwasser-Aquarium, Aquaristik, Werner Klotz (page 76 à 81)
  • Garnelen & krebse Christian W. Hofstätter. (page 26)
  • Distribution, development, and metabolism of larval stages of the warmwater shrimp, Caridina babaulti basrensis (Decapoda, Atyidae), Nasseer Idrisi & Salman D. Salman, Marine and Freshwater Behaviour and Physiology
    March 2005; 38(1): 31-42

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