Development of Carmyerius exoporus Maplestone (Trematoda: Gastrothylacidae) in a snail host

Autor:	J. A. Dinnik, N. N. Dinnik
Rok vydání:	1960
Předmět:	Larva Gastrothylacidae biology Host (biology) Zoology Carmyerius Anatomy Snail biology.organism_classification Infectious Diseases biology.animal Helminths Animal Science and Zoology Parasitology Trematoda
Zdroj:	Parasitology. 50:469-480
ISSN:	1469-8161 0031-1820
DOI:	10.1017/s0031182000025543
Popis:	The development of Carmyerius exoporus Maplestone in the snail Anisus nata-lensis Krauss is described with the emphasis laid on the redial and cercarial productivity of the rediae of the first and subsequent generations.The miracidium gives rise to one sporocyst. From 25 to 32 germinal cells present in the miracidium, only six to eleven develop into embryo balls in the sporocyst and, of these, only three to nine develop into rediae of the first generation.The redia of the first generation gives birth to daughter rediae and cercariae. No alternation in the development of redial and cercarial embryos was noted in the rediae of C. exoporus and a small number of redial embryos was observed to develop alongside the more numerous cercarial embryos throughout the life of the first generation rediae.The rediae of the second and subsequent generations also give birth to daughter rediae and cercariae.The cercariae leave their parent redia when they are still immature and continue the development in the snail tissue.
Databáze:	OpenAIRE
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