The marine leech Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), parasitic on the angel shark Squatina spp. and sandtiger shark Carcharias taurus Rafinesque, 1810 (Chondrichthyes: Squatinidae, Carchariidae) in Southern Brazilian waters

Abstract

The presence of the marine leech, Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), is reported on the southern coast of Brazil, based on seven lots with 47 specimens, between 71 and 182 mm in total length, collected on the dorsal region of angel sharks, Squatina argentina (Marini, 1930); S. guggenheim Marini, 1936; S. punctata Marini, 1936 (Chondrichthyes, Squatinidae); and on the head of a sandtiger shark, Carcharias taurus Rafinesque, 1810 (Chondrichthyes, Carchariidae). This is the first record of S. loricata in the western Atlantic and of its parasitic association with S. argentina, S. guggenheim, S. punctata, and C. taurus.

First record of Stibarobdella moorei (Annelida, Hirudinea, Piscicolidae) a marine leech parasitizing Octopus bimaculatus (Mollusca: Octopodidae) from the Mexican Pacific coast

“…1) based on the morphometrical similar features described by Soto (2003), Furiness et al (2007) and Wunderlich et al (2011). The leech has a mean total length of 2.25 ± 0.63 cm, is fl attened dorso-ventrally and characterized by a fusiform body narrowing gradually towards the anterior end (Fig.…”

“…Stibarobdella moorei was identifi ed based on morphometrical characterization in Soto (2000Soto ( , 2003, Furiness et al (2007) and Fig. 3.…”

“…The leeches found on each animal were preserved in 70 % ethanol, and photographs were taken using a digital camera SONY attached to a stereomicroscope. Identifi cation of leech species were performed following Soto (2000Soto ( , 2003, Furiness et al (2007) and Wunderlich et al (2011) descriptions. Specimens of leeches were deposited at the National Helminth Collection (CNHE), in the Institute of Biology of the National Autonomous University of Mexico, catalogue number (6422).…”

“…Stibarobdella moorei (Oka, 1910) and S. macrothela (Schmarda, 1861) have been found in Brazil (Soto 2000(Soto , 2003Wunderlich et al, 2011;Alves et al, 2014). There is also evidence of their presence in India (Harding, 1924) and Turkey (Başusta et al,.…”

“…In several coastal habitats of tropical and subtropical oceans, hirudinean of the family Piscicolidae are well known as marine leeches of sharks and rays (Llewellyn, 1966;Sawyer et al, 1975;Williams, 1982;Soto 2000Soto , 2003Utevsky and tronjelj, 2004;Furiness et al, 2007;Alves et al, 2014). Stibarobdella moorei (Oka, 1910) and S. macrothela (Schmarda, 1861) have been found in Brazil (Soto 2000(Soto , 2003Wunderlich et al, 2011;Alves et al, 2014).…”