Cochimibdella mexicana n. gen. n. sp. (Hirudinida: Piscicolidae), from Octopus bimaculatus Verrill (Cephalopoda: Octopodidae) in the Gulf of California, Mexico
Por:
Ruiz-Escobar, F, Colunga-Ramírez, GE, Oceguera-Figueroa, A, Castellanos-Martínez, S
Publicada:
1 abr 2025
Resumen:
Cochimibdella mexicanan. gen. n. sp. is described based on morphological data and comparative analysis of DNA sequences, including two mitochondrial (cytochrome oxidase subunit I and 12s rRNA) and nuclear (18S rRNA and 28S rRNA) loci. Leech specimens were found in the mantle cavity and external surface of the octopus Octopus bimaculatus from Bah & iacute;a de los & Aacute;ngeles, Baja California, M & eacute;xico. In vivo observations of recently hatched leeches in the laboratory confirm a broad prey range, including fishes, the most common hosts of the family species. The new taxon differs from species of the family Piscicolidae in possession of weakly developed tubercles in a3 of the urosome. In addition, molecular analysis places Cochimibdella mexicanan. gen. n. sp. sister to Austrobdella californiana and Myzobdella lugubris. This work amends a previous record of the elasmobranch-feeding leech Pontobdella (=Stibarobdella) moorei as a parasite of Octopus bimaculatus from the type locality of the new taxon.
Filiaciones:
Ruiz-Escobar, F:
Univ Autonoma Baja Calif, Fac Ciencias Marinas, Inst Invest Oceanol, Doctorado Ciencias Oceanog Costera, Carretera Transpeninsular Ensenada-Tijuana 3917 Fr, Ensenada 22860, Baja California, Mexico
Univ Autonoma Baja Calif, Inst Invest Oceanol, Carretera Transpeninsular Ensenada-Tijuana 3917 Fr, Ensenada 22860, Baja California, Mexico
Colunga-Ramírez, GE:
Univ Autonoma Baja Calif, Inst Invest Oceanol, Carretera Transpeninsular Ensenada-Tijuana 3917 Fr, Ensenada 22860, Baja California, Mexico
HUN REN Vet Med Res Inst, Budapest, Hungary
Oceguera-Figueroa, A:
Univ Nacl Autonoma Mexico, Dept Zool, Lab Helmintol, Inst Biol, Tercer circuito s-n,Ciudad Univ,AP 70-153, Mexico City 04510, Mexico
Castellanos-Martínez, S:
Univ Autonoma Baja Calif, Inst Invest Oceanol, Carretera Transpeninsular Ensenada-Tijuana 3917 Fr, Ensenada 22860, Baja California, Mexico
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