Comparative radular 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): 549-53
Artículo
en Inglés
| IMSEAR
| ID: sea-32371
ABSTRACT
The radular morphology of Lymnaea (Bullastra) cumingiana was compared to that of five other Indo-Pacific lymnaeid "species", namely L. (Radix) quadrasi (Philippines), L. (R.) rubiginosa (Indonesia and Thailand) and L. (R.) viridix (Guam and Hong Kong) in order to investigate the taxonomic relationship among the six species. Although all six species uniformly exhibited a unicuspid, slightly asymmetrical central (rachidian) tooth and tricuspid laterals, interesting differences were noted among the outer marginals. These were observed to be uniquely bicuspid in L. cumingiana, predominantly tricuspid in L. quadrasi, tetracuspid in L. rubiginosa (Indonesia and Thailand) and multicuspid in L. viridis (Guam and Hong Kong). Thus, the results support the hypotheses that L. cumingiana is a unique species compared to the rest, that L. quadrasi is closely related to L. rubiginosa (Indonesia and Thailand) and that the two geographical isolates of L. viridis have not diverged. Radular morphology was therefore found to have a limited significance in elucidating the taxonomic relationship between the six groups of lymnaeids studied.
Texto completo:
Disponible
Índice:
IMSEAR (Asia Sudoriental)
Asunto principal:
Filipinas
/
Especificidad de la Especie
/
Tailandia
/
Diente
/
Dentición
/
Ecología
/
Genética de Población
/
Guam
/
Hong Kong
/
Anatomía Comparada
Tipo de estudio:
Estudio de incidencia
País/Región como asunto:
Asia
Idioma:
Inglés
Revista:
Southeast Asian J Trop Med Public Health
Año:
1993
Tipo del documento:
Artículo
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