摘要

Cardicola parvus n. sp. (Digenea: Aporocotylidae) infects the heart of Atlantic croaker, Micropogonias undulatus (Linnaeus, 1766) (Perciformes: Sciaenidae), in the South Atlantic Bight off Cow Island (34 degrees 38%26apos;49 %26apos;%26apos; N, 76 degrees 33%26apos;41 %26apos;%26apos; W, type locality) and Figure Eight Island (34 degrees 15%26apos;48 %26apos;%26apos; N, 77 degrees 44%26apos;27 %26apos;%26apos; W), North Carolina, USA, and off Jacksonville Beach (30 degrees 08%26apos;23 %26apos;%26apos; N, 81 degrees 20%26apos;52 %26apos;%26apos; W), Florida, USA. The new species is most easily differentiated from other members of Cardicola Short, 1953 by the combination of having a minute adult body (%26lt;= 1 mm total length) that is 3.1-4.7X longer than wide, widely dispersed ventral tegumental sensory papillae, similar to 180 tegumental spine rows per side of body, a spheroid anterior sucker that is apparently aspinous, an esophagus that is 38-39% of the body total length, a male genital pore that is anterior to the ootype, a uterus that transitions from ascending to descending portions posterolaterally to the ovary, and a nearly transverse oviducal seminal receptacle. The new species is the second named aporocotylid from a littoral fish of the South Atlantic Bight and the fifth aporocotylid species reported from fishes of the northwestern Atlantic Ocean.

  • 出版日期2012-4