Comparative shell morphology of Lymnaea (Bullastra) cumingiana (Pulmonata: Lymnaeidae) and related taxa in the Indo-Pacific region.
Southeast Asian J Trop Med Public Health
;
1993 Sep; 24(3): 554-62
Article
in English
| IMSEAR
| ID: sea-33206
ABSTRACT
Comparative shell morphology using both quantitative and qualitative parameters was employed to investigate the taxonomic relationship between the endemic Philippine species, Lymnaea (Bullastra) cumingiana and five other lymnaeid "species" in the Indo-Pacific region, namely L. (Radix) quadrasi (Philippines). L. (Radix) rubiginosa (Indonesia), L. (Radix) rubiginosa (Thailand), L. (Radix) viridis (Guam) and L. (Radix) viridis (Hong Kong). Fifty randomly chosen adult specimens of each species were studied and compared, although only field-collected specimens were studied for the first four groups and laboratory-raised specimens for the last two group. Results strongly suggested that L. cumingiana is a distinct species among the rest. L. quadrasi, L. rubiginosa (Indonesia) and L. rubiginosa (Thailand) exhibited great affinity towards each other. Likewise, the two geographical isolates of L. viridis were practically identical to each other except for some minor size differences.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Philippines
/
Species Specificity
/
Thailand
/
Ecology
/
Genetics, Population
/
Guam
/
Hong Kong
/
Anatomy, Comparative
/
Indonesia
/
Lymnaea
Type of study:
Incidence study
/
Qualitative research
Country/Region as subject:
Asia
Language:
English
Journal:
Southeast Asian J Trop Med Public Health
Year:
1993
Type:
Article
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