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Bullard, S. A.; Overstreet, R. M. (2000). CALICOTYLE CALIFORNIENSIS N. SP. AND CALICOTYLE UROBATI N. SP. (MONOGENEA: CALICOTYLINAE) FROM ELASMOBRANCHS IN THE GULF OF CALIFORNIA. Journal of Parasitology. 86(5): 939-944.
198644
10.1645/0022-3395(2000)086[0939:ccnsac]2.0.co;2 [view]
Bullard, S. A.; Overstreet, R. M.
2000
CALICOTYLE CALIFORNIENSIS N. SP. AND CALICOTYLE UROBATI N. SP. (MONOGENEA: CALICOTYLINAE) FROM ELASMOBRANCHS IN THE GULF OF CALIFORNIA
Journal of Parasitology
86(5): 939-944
Publication
Available for editors  PDF available [request]
Two new species of Calicotyle (Monocotylidae: Calicotylinae) are described from elasmobranchs in the western Gulf of California. Calicotyle californiensis n. sp. is described from a single specimen collected from a gray smoothhound shark (Mustelus californicus, Carcharhiniformes: Triakidae). It is distinguished from its congeners by the combination of having vaginal pores opening within the intercecal space, distal regions of the vaginae twisting, proximal regions of the vaginae fusing medially to form a kidney bean–shaped structure, and a relatively long male copulatory organ recurving 3 times and passing between the distal penis bulb and the seminal vesicle. Calicotyle urobati n. sp. is described from 16 specimens collected from at least the cloaca and rectum of the round rays Urobatis halleri and Urobatis maculatus (Rajiformes: Urolophidae). It is distinguished from its congeners by the combination of having vaginal pores opening outside the intercecal space and proximal regions of the vaginae terminating at the level of the ceca. Members of Calicotyle have not been reported previously from the eastern Pacific Ocean or from these hosts. In the past, species of Calicotyle have been distinguished based primarily on the shape and length of the male copulatory organ and hamuli. Divisions of the vaginae and the positions of the vaginal pores are also useful in distinguishing members of the genus.
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