Three new species of Pseudohaliotrema Yamaguti, 1953 (Monogenea: Ancyrocephalidae) from Siganus species (Siganidae) and the description of a mechanism for cross-insemination

Autor:	L. H. S. Lim
Rok vydání:	2002
Předmět:	Siganus virgatus biology Pseudohaliotrema Tetrancistrum Ovary (botany) Biodiversity Anatomy biology.organism_classification Insemination Dactylogyridea Spermatophore Ancyrocephalidae Animalia Fish Platyhelminthes Monogenea Ecology Evolution Behavior and Systematics Taxonomy
Zdroj:	Journal of Natural History. 36:1639-1660
ISSN:	1464-5262 0022-2933
DOI:	10.1080/00222930110067935
Popis:	Three new species of Pseudohaliotrema Yamaguti, 1953 were collected from two Siganus species caught off Singapore. They are Pseudohaliotrema virgata n. sp. and P. molnari n. sp. from Siganus virgatus and P. falcata n. sp. from S. guttatus. They differ in the shape and size of both the body and haptoral sclerites and in the morphology of the male organ (modified copulatory organ). Pseudohaliotrema species from siganids are characterized by having a large prominent vaginal pouch, an eversible spermatophore transfer tube associated with the vaginal pouch, ovoid spermatophores (in mature worms), a male organ adapted for spermatophore formation, a large prostatic reservoir, and a testis and ovary arranged side by side. Pseudohaliotrema plectocirra Paperna, 1972 is re-assigned as Tetrancistrum plectocirra (Paperna, 1972) n. comb. Pseudohaliotrema species from non-siganid fish do not possess these characteristics and belong elsewhere. The generic diagnosis of Pseudohaliotrema is amended. Pseudohaliotrema species...
Databáze:	OpenAIRE
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