Millsonia BEDDARD, 1894

Csuzdi, Cs., 2006, West African Earthworm Genus Millsonia Beddard, 1894 (Oligochaeta: Acanthodrilidae, Benhamiinae) Reviewed And Separation Of A New Genus, Acta Zoologica Academiae Scientiarum Hungaricae 52 (1), pp. 35-48 : 36-37

publication ID	https://doi.org/10.5281/zenodo.12585973
persistent identifier	https://treatment.plazi.org/id/03DA5F02-FFBC-FFCF-FD96-FA22FC5AC4B7
treatment provided by	Felipe (2024-06-28 17:23:46, last updated 2024-06-28 18:26:27)
scientific name	Millsonia BEDDARD, 1894
status

Treatment

Millsonia BEDDARD, 1894: 380 ., BEDDARD 1895: 479; OMODEO 1955: 218 (part.); OMODEO 1958: 59 (part.); SIMS 1965 a: 299 (part.); SIMS 1965b: 39; OMODEO 1973: 15; SIMS 1986: 277 (part.); CSUZDI 1995 a: 116 (part.); CSUZDI 1995b: 34; CSUZDI 1996: 360 (part.); CSUZDI 2000 a: 75 (part.); CSUZDI 2000 b: 29 (part.).

Dichogaster BEDDARD, 1888 View in CoL : MICHAELSEN 1900: 334 (part.); STEPHENSON 1930: 851 (part.).

Diagnosis. Male terminalia acanthodriline, sometimes with microscolecine reduction. Two gizzards before the genital segments, three pairs of stalked extramural calciferous glands in segments xv–xvii, excretory system meroic with astomate meronephridia and caudal exonephric stomate megameronephridia. Paired digitate caeca present in at least one, usually several adjacent segments of the intestine. Typhlosole present, ventral setae normal.

Type species – Millsonia nigra BEDDARD, 1894 ( OMODEO 1955 by subsequent designation)

Other species: M. ashantiensis SIMS, 1986 ; M. caecifera ( BENHAM, 1894) ; M. centralis SIMS, 1986 ; M. guttata ( MICHAELSEN, 1913) ; M. heteronephra ( MICHAELSEN, 1897) ; M. inermis ( MICHAELSEN, 1892) ; M. lamtoiana OMODEO & VAILLAUD, 1967 ; M. meridionalis OMODEO, 1973 ; M. mima (MICHAELSEN, 1891) ; M. nilesi SIMS, 1986 ; M. pulvillaris SIMS, 1986 ; M. pumilia SIMS, 1965 ; M. riparia SIMS, 1986 ; M. schlegeli (HORST, 1884) ; M. sokodeana ( MICHAELSEN, 1913) .

Remarks. SIMS (1986) excluded from Millsonia the penial setae bearing species M. meridionalis and M. schlegeli , but later CSUZDI (1995 a, b, 1996) argued for back-placing these species into Millsonia on the basis of shared presence of intestinal caeca and the similar structure of spermathecae.

References

BEDDARD, F. E. (1888) On certain points in the structure of Urochaeta, E. P., and Dichogaster, nov. gen., with further remarks on the nephrida of earthworms. Quarterly Journal of Microscopical Science 29: 235 - 282.

BEDDARD, F. E. (1894) On two new genera, comprising three new species of earthworms from western tropical Africa. Proceedings of the Zoological Society, London 1894: 397 - 391.

BEDDARD, F. E. (1895) A monograph of the order of Oligochaeta. Oxford, Clarendon Press. 769 pp.

BENHAM, W. B. (1894) On Benhamia caecifera nov. sp. from the Gold Coast. Quarterly Journal of Microscopical Science 37: 103 - 112.

CSUZDI, CS. (1995 a) A catalogue of Benhamiinae species (Oligochaeta: Acanthodrilidae). Annalen des Naturhistorischen Museums in Wien 97 B: 99 - 123.

CSUZDI, CS. (1995 b) Neue und wenig bekannte Regenwurmer aus Senegal und Sierra Leone (Oligochaeta, Acanthodrilidae: Benhamiinae). Opuscula Zoologica Budapest 27 - 28: 25 - 40.

CSUZDI, CS. (1996) Revision der Unterfamilie Benhamiinae Michaelsen, 1897 (Oligochaeta: Acanthodrilidae). Mitteilungen aus dem Zoologischen Museum in Berlin 72: 347 - 367.

CSUZDI, CS. (2000 a) A review of the Benhamiinae collection of the Natural History Museum, London (Oligochaeta: Acanthodrilidae). Opuscula Zoologica, Budapest 32: 51 - 80.

CSUZDI, CS. (2000 b) The first recorded earthworms from Burkina Faso with description of a new species (Oligochaeta: Eudrilidae, Acanthodrilidae). Miscellanea Zoologica Hungarica 13: 29 - 35.

MICHAELSEN, W. (1892) Terricolen der Berliner Zoologischen Sammlung II. Archiv fur Naturgeschichte 58: 209 - 261.

MICHAELSEN, W. (1897) Neue und wenig bekannte afrikanische Terricolen. Mitteilungen aus dem Naturhistorischen Museum in Hamburg 14: 3 - 71.

MICHAELSEN, W. (1900) Oligochaeta. In: Das Tierreich, Frielander und Sohn, Berlin, 10: 1 - 575.

MICHAELSEN, W. (1913) Oligochaten vom tropischen und sudlich-subtropischen Afrika I. Zoologica Stuttgart 26 (67): 139 - 170.

OMODEO, P. (1955 a) Eudrilinae e Octochaetinae della Costa d'Avorio (Oligochaeta). Memorie del Museo Civico di Storia Naturale di Verona 4: 213 - 229.

OMODEO, P. (1958) Oligochetes. In: La reserve naturelle integrale du Mont Nimba. Memoires de l'Institut Francais d'Afrique Noire Douala 53: 9 - 109.

OMODEO, P. & VAILLAUD, M. (1967) Les Oligochetes de la savane de Gpakobo en Cote- d'Ivoire. Bulletin de l'Institut Francais d'Afrique Noire Douala 29: 925 - 944.

OMODEO, P. (1973) Oligochetes de l'Angola. Das publicacoes culturais da Companhia de Diamentes de Angola 87: 13 - 58.

SIMS, R. W. (1965 b) The identity of the Western African earthworm Millsonia nigra Beddard, 1894 (synonym Dichogaster eudrilina Cognetti, 1909) Octochaetinae, Oligochaeta. Journal of the West African Science Association 10: 39 - 44.

SIMS, R. W. (1986) Revision of the Western African earthworm genus Millsonia (Octochaetidae, Oligochaeta). Bulletin of the British Museum (Natural History) 50: 273 - 313.

STEPHENSON, J. (1930) The Oligochaeta. Clarendon Press, Oxford, 987 pp.

Copyright notice

No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.

Taxonomy

Kingdom	Animalia
Phylum	Annelida
Class	Clitellata
Order	Crassiclitellata
Family	Acanthodrilidae