Ceriodaphnia rigaudi Richard, 1894

Kotov, Alexey A. & Ferrari, Frank D., 2010, The taxonomic research of Jules Richard on Cladocera (Crustacea: Branchiopoda) and his collection at the National Museum of Natural History, U. S. A., Zootaxa 2551 (1), pp. 37-64 : 47-48

14. Ceriodaphnia rigaudi Richard, 1894

Ceriodaphnia rigaudi Richard 1894c, p. 239 –241.

? Ceriodaphnia rigaudi Richard in Richard 1894a, p. 367–370.

Type locality. "Une mare delà citadelle de Lao-Kay, poste avancé du Tonkin" (Richard 1894c), North Vietnam .

Richard's specimens. Many females, DGF 728 , DGF 749 , DGF 756 , “Peche effective a Lao-Kay, Mare de la Citadelle, Fr. Indo-China ”. Two more samples DGF 748 and DGF 754 are from the vicinity of type locality, but there are no specimens of this species in them .

Comments. A species of the C. cornuta -complex ( Berner 1985), recently found to be a hornless form of C. cornuta (D. B. Berner, personal communication), but specimens from different continents should be reconciled. Richard published two papers describing this species in 1894, but the article describing Mediterranean populations (Richard 1894a) referred to previous publication on Vietnam (Richard 1894c). Therefore the Vietnam locality should be considered the type locality of this species. The status of Mediterranean populations of C. cf. rigaudi mentioned by Richard (1894a) himself and by subsequent European authors ( Alonso 1996), as well of populations from other regions of the world ( Berner 1985), should be compared.