Abstract
The body surface of adultArgulus appendiculosus is characterized by a carapace which dorsally is devoid of surface ornamentation except for the presence of a series of grooves and sutures which are similarly arranged in all specimens. The ventral surface of the carapace is bounded laterally by spines and medially by unadorned respiratory areas. Sucking discs possess circumferential flanges with marginal papilae and supporting rods composed of two elements. Sexual dimorphism is particularly evident in the structure of the natatory lobes of the fourth swimming legs and in the presence of accessory copulatory structures on second, third and fourth swimming legs of males. A previously undescribed pocket on the coxa of the third swimming appendage of males may function together with the peg and socket apparatus in the clasping of males and females during copulation. Ventral surfaces of the thorax and maxillae are covered with posteriorly directed scales which have distal ends bearing comb-like teeth. Presumed sensory structures on the body surface are of at least two types: (1) recurved spinous projections which often arise from cuticular blebs, and (2) small circular pits containing papillae which do not project beyond the rim of the pit. ManyA. appendiculosus had attached peritrichous ciliates on the lateral and ventral body surfaces.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Zeitschrift f�r Parasitenkunde Parasitology Research
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
