INVESTIGADORES
BULNES Veronica Natalia
artículos
Título:
Two new species of south Korea with remarks on the Family Stilochidae (Acotylea, Polycladida, Platyhelminthes)
Autor/es:
BULNES, FAUBEL, PARK
Revista:
JOURNAL OF NATURAL HISTORY
Editorial:
Taylor & Francis Group
Referencias:
Año: 2005 p. 2089 - 2107
ISSN:
0022-2933
Resumen:
Two new species of acotylean Polycladida are described from Korea, Munseoma maculata gen. et sp. nov. and Crytostylochus koreensis sp. nov. Munseoma maculata is characterized by a small free prostatic vesicle but only indistinctly cut off from the ejaculatory duct; a Langs vesicle is present. Crytostylochus koreensis possess a prostatic vesicle with tubular lining of radial arrangement. Each tube is connected via a glandular duct with a single extra-vesicular gland attached just to the muscular wall of the prostatic vesicle. That morphological feature forces to discuss the relationships within the family Stylochidae. Consequently, type material of other stylochids deposited in the museums of Hamburg, Vienna, and Stockholm, was ordered to investigate the genital organs and, in particular, the interior lining of the prostatic vesicle. Based on that analyses two new types of the prostatic lining are defined, the poly-glandular type and the mono-glandular type. The mono-glandular type is defined having an oval to elongate prostatic vesicle with tubular lining and extra-vesicular glands. Each extra-vesicular gland is connected via a glandular duct with a single tube. The poly-glandular type is defined having a mostly roundish oval prostatic vesicle with long fingered tubes, more or less horizontally directed distad, and numerous extra-vesicular glands. Each tube is connected via several glandular ducts of extra-vesicular glands. Based on these new characters, the family Stylochidae is newly defined.