A new and aberrant species of Dugesia (Platyhelminthes, Tricladida, Dugesiidae) from Madagascar

被引:15
作者
Stocchino, Giacinta Angela [1 ]
Sluys, Ronald [2 ]
Manconi, Renata [1 ]
机构
[1] Univ Sassari, Dipartimento Sci Nat & Terr, I-07100 Sassari, Italy
[2] Nat Biodivers Ctr, NL-2300 RA Leiden, Netherlands
关键词
Tricladida; Dugesia; Madagascar; morphology; karyology; reproduction; new species; LAND PLANARIANS PLATYHELMINTHES; SP-N; PLATYHELMINTHES; GENUS DUGESIA; AFRICAN PLANARIANS; BIODIVERSITY; PALUDICOLA; KARYOLOGY; TERRICOLA; SARDINIA;
D O I
10.3897/zookeys.425.7811
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
In this paper we report a new species of Dugesia of the family Dugesiidae from Madagascar, representing the fourth species of freshwater planarian known from this global biodiversity hotspot. In some respects the new species is aberrant, when compared with its congeners, being characterized by a head with smoothly rounded auricles, a peculiar course of the oviducts, including the presence of a common posterior extension, and by the asymmetrical openings of the vasa deferentia at about halfway along the seminal vesicle. Further, it is characterized by a ventral course of the ejaculatory duct with a terminal opening, very long spermiducal vesicles and unstalked cocoons. Its diploid chromosome complement with 18 chromosomes represents an uncommon feature among fissiparous species of Dugesia.
引用
收藏
页码:71 / 88
页数:18
相关论文
共 26 条
[1]   The challenge of conserving amphibian megadiversity in Madagascar [J].
Andreone, Franco ;
Carpenter, Angus I. ;
Cox, Neil ;
du Preez, Louis ;
Freeman, Karen ;
Furrer, Samuel ;
Garcia, Gerardo ;
Glaw, Frank ;
Glos, Julian ;
Knox, David ;
Koehler, Joern ;
Mendelson, Joseph R., III ;
Mercurio, Vincenzo ;
Mittermeier, Russell A. ;
Moore, Robin D. ;
Rabibisoa, Nirhy H. C. ;
Randriamahazo, Herilala ;
Randrianasolo, Harison ;
Raminosoa, Noromalala Rasoamampionona ;
Ramilijaona, Olga Ravoahangimalala ;
Raxworthy, Christopher J. ;
Vallan, Denis ;
Vences, Miguel ;
Vieites, David R. ;
Weldon, Che .
PLOS BIOLOGY, 2008, 6 (05) :943-946
[2]  
Ball I.R., 1974, Life Sci Contr R Ont Mus, VNo. 99, P1
[3]  
Ball IR., 1981, British Planarians
[4]  
DAHM AG, 1967, ARK ZOOL, V19, P309
[5]  
De Beauchamp P, 1952, B SOC ZOOLOGIQUE FRA, V77, P362
[6]  
DEVRIES EJ, 1988, ZOOL J LINN SOC-LOND, V92, P345
[7]  
DEVRIES EJ, 1991, J ZOOL, V223, P103
[8]  
GOURBAULT N, 1972, Memoires du Museum National d'Histoire Naturelle Serie A Zoologie, V73, P1
[9]   Biodiversity of Australian freshwater planarians (Platyhelminthes: Tricladida: Paludicola):: new species and localities, and a review of paludicolan distribution in Australia [J].
Grant, Lauryne J. ;
Sluys, Ronald ;
Blair, David .
SYSTEMATICS AND BIODIVERSITY, 2006, 4 (04) :435-471
[10]   Fifty years of deforestation and forest fragmentation in Madagascar [J].
Harper, Grady J. ;
Steininger, Marc K. ;
Tucker, Compton J. ;
Juhn, Daniel ;
Hawkins, Frank .
ENVIRONMENTAL CONSERVATION, 2007, 34 (04) :325-333